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revision 1.22 by adcroft, Wed May 26 23:01:16 1999 UTC revision 1.638 by heimbach, Thu Mar 23 19:59:59 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    checkpoint58c_post
8    o adjoint: finish NLFS adjoint and provide reference output in
9      verification/global_ocean.90x40x15/results_ad_nlfs
10    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
11      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
12      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
13      with SEAICE_CGRID defined.
14    o move calendarDumps from "data" to "data.cal" and clean-up the code
15      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
16    o add useEXF & useCAL flags (for now, set in hard-coded way)
17    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
18      (were missing in NH mode, and wrong in quasihydrostatic mode).
19      waiting for Chris updated version of calc_gw to add those CALLs.
20    o fix bug in quasihydrostatic S/R ;
21      add a test for this option: global_ocean.90x40x15.qshyd
22    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
23      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
24    o add on/off flag useOffLine for package OFFLINE
25    o seaice:
26      - modify advection so that it works also on the C-grid
27      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
28        problem in multi-tile runs with C-grid
29      - add flags for clipping ice velocities and/or masking solver forcing
30      - fix drag (ocean on ice) formulation and a bug that caused noise in the
31        C-grid solver
32      - added a few comments to seaice_diffusion.F
33      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
34        are now exclusive)
35      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
36        required re-ordering the code a little:
37       + make DAIRN global variable (defined in SEAICE)
38       + move computation of the viscosities eta and zeta into a new separate
39         routine (because I need to recompute them in seaice_ocean_stress.F)
40    
41    checkpoint58b_post
42    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
43      update output.txt of exp. aim.5l_cs.thSI
44    o various mnc cleanups and improvements:
45      + shrink lookup tables by factor of ~4
46      + better error reporting when running out of lookup space
47      + able to handle longer path/file names (up to 500 chars)
48    o adjoint:
49      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
50      - TBD: "hidden" mom_vecinv recomp. in dynamics
51    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
52     (allow to differentiate between forcing components using new integer flags:
53      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
54     and add new flag to put Dissipation tendency out of Adams-Bashforth.
55    o ecco
56      - enable trend removal from SSH anomaly obs.
57    o adjoint
58      - a fix for PmEpR when #undef EXACT_CONSERV
59      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
60      - try to fix "hidden" recomp. in forward_step for NLFS
61        (NLFS seems broken sometimes after I checked it in)
62    o seaice:
63     - add c-grid version of the dynamic solver:
64       + three new routines that are the c-grid substitute lsr, dynsolver
65         and ostres
66       + put a few fields that were local to dynsolver into global common
67         blocks, so that I can move the computation of stresses etc into
68         seaice_lsr (saves coding but may break the adjoint).
69     - replace more hardwired parameters by runtime parameters
70     - add ice masks that mask the rhs of the implicit solvers where there
71       is no ice (commented out in seaice_dynsolver, because i am not sure
72       if this works properly), eventually this should replace the clipping
73       of ice velocities in seaice_dynsolver to +/-40cm/s.
74    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
75      include it only where its needed
76    o move balancing of fluxes before the call of external_forcing_surf
77    o seaice:
78      - correct units of turning angles (now they are really in degrees)
79      - move computation of GWATX/Y out of main routine into dynsolver
80      - initialize GWATX/Y in seaice_init
81    o Apply mask on Fresh-Water flux (needed for SSH forcing).
82      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
83    o seaice: add runtime flags for turning angles (default to zero)
84    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
85      and trend from exf forcing and ctrl control adjustments
86    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
87      (since checkpoint57x_post)
88    o change the default rotation period to 86164.s = the Earth rotation
89    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
90      and based on a reference stratification. Tested within hs94.cs-32x32x5.
91    o seaice advection: add code for choosing between the default (2nd order
92      central differences) and multiDim advection schemes provided by
93      pkg/generic_advdiff
94    o seaice:
95      - removed all references to SEAICE_GRID.h fields from
96        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
97        (cubed-sphere configuration will change a little)
98      - grid computations in seaice_init are obsolete now.
99      - cleaned up code a little so that is easier to read (hopefully).
100      - added new (better?) discretizations of default advection and diffusion
101        (turn on with SEAICEuseFluxForm)
102      - replace 1 in 3d global fields by kSurface in growth.F
103      
104    checkpoint58a_post
105    o seaice:
106      - bug fix in advect.F
107    o shelfice:
108      - separate shelfice load anomaly from pload (breaks with time
109        dependent forcing), => introduce constant field shelficeLoadAnomaly.
110        Its default is 0., but it may be computed more cleverly from (unknown)
111        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
112        done offline. A good approximation of the pressure load anomaly is
113        necessary to avoid large initial adjustment processes underneath
114        deep-reaching shelfice.
115      - small fix in ISOMIP shelfice_thermodynamics
116      - add more sophisticated thermodynamics of Hellmer (1989), this is
117        now the default
118      - give a few constants more intuitive names
119    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
120      if bulk formulae are used in long integration (especially EmPmR). Turn
121      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
122      if balancePrintMean, the imbalance that is substracted is printed to
123      STDOUT.
124    o fix bug (typo) in obcs_apply_eta.F
125    o add a new package shelfice which enables us to model the circulation
126      underneath shelf-ice with draughts of hundreds of meters.
127     - works
128     - to do: + include improved thermodynamics
129              + check whether kSurfC (from model/inc/SURFACE.h) can be used
130                instead of new field kTopC
131              + can we use topoFile, Ro_surf and existing code in ini_depth.F
132                instead of new field R_shelfIce and new code in ini_depth.F
133                and ini_mask_etc.F?
134              + adjust vertical mixing schemes?
135    o seaice pkg:
136     - add a cpp-flag to include a simple formula for a salinity dependent
137       freezing point of sea water at the surface
138     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
139       meridional stresses are now different (and hopefully correct)
140    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
141       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
142       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
143    o pkg/diagnostics: add options and parameters for regional-statistics
144       diagnostics ; define regions by reading a region-mask from a file
145       (might add other options later)
146    o pkg/bulk_force:
147     - add option and parameters to use AIM surface-flux formulae.
148     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
149       others forcing fields (defined in PARM05, parameter file "data") are loaded
150       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
151     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
152     - use the right EXCH call for uwind,vwind (to work on CS-grid).
153     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
154       and parameters (note: calcWindStress replaces .NOT.readwindstress).
155     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
156    
157    checkpoint58
158    o add "--embed-source" option to genmake2 which, when the supporting
159      tools can be compiled (as determined by genmake2) will turn on the
160      embed_files package which then embeds the entire MITgcm source code
161      (*.[fFhc] + Makefile) used for the build within the executable
162      - requested by CNH but off by default
163      - adds a paltry <9MB to the mitgcmuv executable in most cases
164      - only writes the output when useEMBEDSRC in eedata is true
165    o clean up 3-dim. relaxation codes:
166      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
167      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
168      * Thanks to Tom Haine for testing!
169    
170    checkpoint57z_post
171    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
172      affects output (@ truncation level) of exp. plume_on_slope ; updated.
173    o fix the pickup behavior for obcs in combination with ptracers
174    o fix a bug in ptracers_external_fields_load
175    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
176      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
177    o transfered surface NH pressure to eta field (if exactConserv).
178    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
179         and update lab_sea output.txt file.
180    o completing 3-dim. relaxation code: additional term
181         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
182      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
183      * At compile time, in "EXF_OPTIONS.h" set
184          #define  ALLOW_CLIMTEMP_RELAXATION
185          #define  ALLOW_CLIMSALT_RELAXATION
186      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
187          tauThetaClimRelax3Dim = 15552000.0,
188          tauSaltClimRelax3Dim  = 15552000.0,
189      * 3 cases:
190          1) Use a constant-in-time 3-dim. field
191          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
192          3) Real-time relax. to time-evolving prescribed field
193    o Adding Laplacian-type smoothness constraint on
194      initial and boundary (forcing) controls (ic, bc)
195      * enable at compile-time via
196        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
197      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
198      * Absolute scale somewhat unclear so far
199      * no area weighting was included since no other cost term does so far
200    
201    checkpoint57y_post
202    First step for a NLFS adjoint
203    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
204    o new init. routines for calc_r_star, calc_surf_dr
205    o still need to deal with ini_masks_etc
206    o testreport seemed happy
207    checkpoint57y_pre
208    
209    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
210    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
211    o add new offset feature to offline pkg (plus minor cleanup)
212    o cfc fixes for final year of integration
213    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
214      be in GCHEM_OPTIONS).
215    
216    checkpoint57x_post
217    o fix testreport Pb in multiple test experiment.
218    o cleanup our namelist syntax in verification:
219      - make it more F95 standards compliant (some work still needed)
220      - allows the vast majority of our tests to work with gfortran
221    o Non-Hydrostatic:
222     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
223     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
224    o Allow to apply AB on T,S rather than on AB(gT,gS):
225     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
226     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
227       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
228     - need a "clever" read_pickup to restart from the other AB formulation
229    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
230    o remove some unused variables (reduces number of compiler warnings)
231    o adjoint
232      * Disable useVariableViscosity for adjoint for time being
233        (there are a number of extensive recomputations)
234      * Initialize certain variables needed for adjoint
235    
236    checkpoint57w_post
237    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
238                 fix the singleCpuIO RS version of MDSWRITEFIELD
239       and add a WARNING if using globalFiles=T with multi-processors.
240    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
241      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
242    o tracer advection scheme:
243      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
244       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
245       was not very convenient).
246      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
247       (further tests needed for the implicit DST & Flux-Limiter schemes).
248    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
249      and sRef for convenience, handy, when you want to initialize
250      ptracers in a large domain with a constant non-zero value. Also,
251      untangle ptracers_init.F a little.
252    
253    checkpoint57v_post
254    o change dome exp. to use variable viscosity in side-drag terms.
255    o remove all the files from the cfc_offline test since they are now
256      incorporated into tutorial_cfc_offline which has been producing
257      identical results for a few days of testing
258    o add new parameter: sideDragFactor to enable half-slip-side BC
259      and change side-drag S/R to use viscosity from mom_calc_visc
260      (can switch back by setting sideDragFactor=0.); affects results at
261      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
262       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
263    o vorticity & strain are now computed without masking, to account for
264      no-slip-side BC in variable viscosity calculation ; mask is applied
265      anyway later on, before computing advection/coriolis terms.
266    o modify exp4 to test new obcs support for reading from external files
267      and for passive tracers
268    o fix behavior of ptracers_monitor when monitor output is written to a
269      netcdf-file; still not independent of monitor.F (writes in the same
270      file).
271    o change default value of tRef (put a uniform, meaningful value for ocean
272      & atmos) and initialize sRef (was missing, as Martin mentioned).
273    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
274      to be proportional to enstrophy dissipation length.  Thus,
275       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
276      This is now consistent with Smagorinsky and with the manual.
277    
278    checkpoint57u_post
279    o OBCS and PTRACERS: add open boundary support for passive tracers
280      - either use homogenous (pseudo) v.Neumann conditions or prescribe
281        OB-values from file; this is not different from the way theta and salinity
282        are treated
283      - however, Orlanski-radiation conditions are not supported, and the model
284        will stop if you use pTracers and Orlanski at the same time.
285      - beefed up the rountine obcs_external_fields_load: now only those open
286        boundary values are overwritten with values from files for which there
287        are really files, otherwise the OB-fields remain untouched. This makes
288        it possible to use different OBs at different ends of the domain (as
289        with EXF)
290    o reduce number of exch calls in shap_filt (s2).
291    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
292      truncation level) 4/5 MLAdjust test results (11&12 digits match).
293    
294    checkpoint57t_post
295    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
296    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
297      same truncation, independent of the face number: affects affects several
298      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
299    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
300      note that biharmonic viscosity + no-slip was not tested in any experiment.
301    o fix bug in non-linear free-surf side-drag ; generate new output for
302      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
303    o make mnc honor the writeBinaryPrec flag for most kinds of output
304    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
305    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
306      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
307    o add brackets in multi-terms sum to get same truncation, independent of
308      the face number (manage to get exactly same value of gU,gV at the cs-edge)
309      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
310    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
311      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
312      a maximum grid-scale Reynolds number.  Also, changes all length calculations
313      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
314      Suggested values of viscosity parameters found in mom_calc_visc.
315      Many new viscosity diagnostics available.
316    
317    checkpoint57s_post
318    o Add clearing-house for viscosity calculations, mom_calc_visc and
319      correct numerous bugs in LeithD and Smagorinsky discretizations.  
320      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
321      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
322      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
323      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
324      The Strain-Tension form is now called with useStrainTensonVisc=.true.
325      ViscAhStrain and viscAhTension are now retired.
326    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
327    o In response to JMC's bug report, genmake2 now ignores any soft-links
328      that it finds in the *current* directory when searching for files.
329      Soft-links found in any other source directories will still work as
330      they did before.
331    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
332      a C routine to unlimit the stack size
333    o mnc-ify pkg/aim snapshot vars
334    o mnc-ify pkg/land as requested by Daniel
335    o various changes to mnc including:
336      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
337      - output can now be grouped so that all files within a group
338          change the ITER portion of their names in lock-step together
339      - can now read ("global") PER-FACE (in addition to PER-TILE) files
340          and works with both EXCH1 and EXCH2 (but needs more testing)
341      - writing works for all verification test cases w/ g77 on Linux
342    
343    checkpoint57r_post
344    o make MNC variable initialization happen earlier
345    o add diagnostics for (almost) each term of the momentum Eq.
346    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
347    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
348    o remove MINIMAL_TAVE_OUTPUT option ;
349      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
350    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
351      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
352    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
353    o add time-dependent SST, SSS control
354    o cost terms in ecco/ modularized (new cost_generic.F)
355    o cost_averages routines are modularized (new cost_averagesgeneric.F)
356    o new infrastructure for seaice model vs. obs misfits in seaice/
357      * driver from the_main_loop.F is seaice_cost_driver.F
358      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
359      * gradient check in Exp. 6a of natl_box_adjoint/
360    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
361      (see README file)
362    
363    checkpoint57q_post
364    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
365    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
366      - bug was reported by Jean-Michel and Ian Fenty
367    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
368      update exp. cpl_aim+ocn output.
369    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
370      Needed for high-res. runs with large global files
371      to be able to limit tapelev size
372    o Changed some tests for adjoint:
373      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
374      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
375      * global_ocean.90x40x15/ back to default 3-level checkpointing
376    o Modifications to enable scripted COMMON to MODULE conversion
377      * verification/OpenAD/code/ has necessary scripts and description;
378      * converts, compiles and runs successfully;
379    
380    checkpoint57p_post
381    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
382    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
383      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
384    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
385    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
386      (was already the case for dissipation with mom_vecinv,
387       and also the case for grad.PhiHyd when staggered-timeStep)
388      This will allow to put dissipation out-off the AB time-stepping.
389     Unfortunately, affects truncation error. Update output of exp. that "fails"
390      (cg2d matching number) and leave the others for later: front_relax(10),
391      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
392      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
393    
394    checkpoint57o_post
395    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
396      (2) its ready to be documented during the 20050801 DocFest
397    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
398      for ideal_2D_oce and lab_sea on linux_ia32_g77
399    o set to #undef CTRL_SET_OLD_MAXCVARS_30
400      in global1x1_tot/code_seaice_adj to access indices 32, 33
401      (worth another tag)
402    
403    checkpoint57n_post
404    o adding precip control xx_precip 32
405    o adding swflux control xx_swflux 33
406    o Replacing 10 forcing penalty cost routines by 1 generic.
407    o Implementing partitioning in time-mean and variable adjustment
408      for atmos. state.
409    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
410    o in natl_box_adjoint:
411      * updated exp 1 to 10
412        (but does not have time-mean vs. variable split results yet)
413    o updated global1x1/*_seaice_adj/
414      to incorporate latest changes
415    o enable useSingleCpuIO for mdsio vector routines
416      (applies in particular to tapelev I/O)
417    o removed inefficient K-loop in all active_file*control*.F
418    
419    checkpoint57m_post
420    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
421      and advect_cs (use EXCH-2 and standard cs-32 grid files).
422    o pkg/exch2: filling of face-corner halo regions is optional
423      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
424    
425    checkpoint57l_post
426     tag before updating tutorials (pre-release-2)
427    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
428       for output and interpolation of input fields onto model grid)
429    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
430       Affects results of exp. rotating_tank ; update output.txt.
431    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
432          and taking the square quantity and/or using a fraction-weight field.
433    o fix aim_diagnostics_init.F mate numbers.
434    o add mnc output capability to diagnostics/diagstat and update
435      our cvsignore files for the ACSII output generated
436    
437    checkpoint57k_post
438    o lab_sea now uses diagnostics package and provides a suite of
439      new EXF diagnostics output.
440    
441    checkpoint57j_post
442    o exf
443      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
444        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
445        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
446      * extended diagnostics output
447        - now includes all EXF variables
448        - hs, hl moved to common block
449        - separate S/R for diagnostics, called after ctrl vector is added
450        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
451        - EXFqnet contains true Qnet (i.e. includes qsw)
452      * updated verif. lab_sea, global_with_exf
453      * Rearranging hflux (exf_mapfields -> exf_getforcing)
454        to ensure that diagnostics sees a true EXFqnet
455    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
456    o diagnostics pkg: change pointers so that 1 diagnostic can be used
457      several times with different frequencies.
458    o mnc-ify the thsice package as requested by Daniel Enderton
459      - the monitor--MNC output needs work
460      - many attributes need to be added (most are currently blank)
461    o mnc-ify theaim_v23 package as requested by Daniel Enderton
462      - many attributes need to be added (most are currently blank)
463    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
464    o add Sadourny like discretization to the 4th.O vorticity advection scheme
465    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
466      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
467         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
468    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
469     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
470    
471    checkpoint57i_post
472    o Diagnostics package was changed: diagnostic allocation is now deactivated
473      by setting an empty file name in the namelist (used to be by setting 0 frequency)
474    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
475      add 1rst Order upwind vertical Shear.
476    o add a quick fix for A/B checkpointing in OFFLINE mode
477    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
478      end-run around the C/Fortran linking horror in eesup/src/timers.F
479    o added pkg/runclock: allows user to terminate run based on wall clock
480    o added non-hydrostatic scaling parameter: nh_am2
481    o pkg/my82: futile attempt to make results compiler-independent by adding
482      some "_d 0", etc. no effect.
483    o for mnc output, fill the 'T' coordinate var with myTime and create a
484      separate 'iter' variable for iteration count
485    o pkg/diagnostics:
486      add new capability: output of Global/Regional & per-level statistics ;
487      tested against monitor output (including land & thSIce) on various exp.
488    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
489    
490    checkpoint57h_done
491      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
492      data.diagnostics, data.gchem, data.ptracers) is done.
493    
494    o pkg/diagnostics: prepare for Global/Regional statistics.
495      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
496    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
497      and rename it: DIFFERENT_MULTIPLE
498    
499    checkpoint57h_post
500    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
501    o pkg/diagnostics: change output frequency, now in seconds (instead
502      of Nb of iterations). This requires to change data.diagnostics.
503    checkpoint57h_pre
504    
505    o in mnc, let the user create the output dir if both mnc_outdir_date
506      and mnc_outdir_num are false
507    o add fflags() to pkg/diagnostics which allows one to specify, on a
508      per-file basis, the file precision [default behavior is unchanged]
509    o added diagnostics to pkg/kpp, including computation of mixed layer
510      depth based on a temperature/density criterion
511    o updated verification/natl_box to test the new pkg/kpp diagnostics
512    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
513    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
514    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
515      not mnc -- this mistake was found by JMC and is now corrected
516    
517    checkpoint57g_post
518    o add Adams-Bashforth 3rd Order time stepping:
519      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
520      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
521    checkpoint57g_pre
522    
523    o make lambda[Theta,Salt]ClimRelax spatially varying
524      (default remains spatially uniform constant based on tau)
525    o added new control variables
526      * init. uVel, vVel, etanN
527      * lambda[Theta,Salt]ClimRelax
528    o separate masks used for ctrl_pack/unpack 'from write_grid' output
529      (suggested by G. Forget)
530    
531    checkpoint57f_post
532    o add parameter "baseTime" = model base time = time at iteration zero
533      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
534      account for baseTime shift
535    o move Coriolis arrays from PARAMS.h to GRID.h
536    checkpoint57f_pre
537    
538    o mnc-ifying the seaice package
539    o introduced an alternative length scale calculation for use in the limiting
540      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
541    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
542    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
543      as well as grad(vort3).  Made it compatible with both approximate form
544      for the cubed sphere and full form of these gradients.  Added flag
545      useFullLeith to select between approximate and full form.  
546    o add "d0" in getcon.F to reduce differences between compilers/platforms
547      update output.txt of exp. fizhi-gridalt-hs
548    o change port_rand funtion to allow to set the seed.
549    o fix obscure MNC bug involving conversion between reals and integers
550      - it caused no problems with certain (eg. gcc, ifc) compilers but the
551        new version is now more standards-compliant
552    o adjoint-related modifications
553      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
554      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
555      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
556    
557    checkpoint57e_post
558    o Adding eddy stress controls a la Ferreira et al.
559    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
560    
561    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
562      update output.txt of exp. fizhi-gridalt-hs
563    o add more "Z" dimensions and associated coordinate vars to MNC
564    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
565    o parameter calendarDumps: when set, approximate months (30-31 days) and years
566      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
567      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
568      months and years.  Requires pkg/cal.
569    o diagnostics: add pickup functionality
570      - off by default for backwards compatibility
571      - current version only uses MDSIO -- MNC will be added
572    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
573    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
574    
575    checkpoint57d_post
576    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
577    o modify verification/ideal_2D_oce so that it tests the creation of mnc
578      output from the diagnostics package
579    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
580    o make genmake2 more portable by using ".$FS" instead of ".f" for more
581      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
582    o add coordinate variables to the MNC output from the diagnostics package
583    o change MNC-flags default value: true when useMNC=TRUE
584    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
585      the ability (off by default) to read the grid information using MNC
586    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
587    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
588    o do snap-shot diagnostics at the middle of the time-interval (instead of
589      at the end).
590    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
591      new test for AIM with thSIce + slab-ocean
592    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
593    o move state variable diagnostics to the beginning of the time step ;
594      (note: still needs some work specially for snap-shot diagnostics)
595      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
596    
597    checkpoint57c_post
598    o Change testing option (-ieee) to get closer agreement between g77 & ifort
599    o generate new output.txt files on faulks with g77 & the new -ieee option
600    checkpoint57c_pre
601    
602    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
603      update output.txt of exp. global_ocean.90x40x15
604    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
605      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
606    o add saltFlux(+File) forcing capability with periodicExternalForcing
607    o allow to use pkg diagnostics for GM-Redi & ThSIce output
608    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
609    o improvements for the MNC output from DIAGNOSTICS:
610      - correct handling of the unlimitied dimension
611      - all dims now have associated coordinate variables
612      - variables located at U, V, and Corner ("Z") points are now written
613        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
614        *all* data points are output
615    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
616    o added pkg/seaice/seaice_monitor.F
617    o mdsio_readfield.F can now read files visible only to master MPI process.
618    o pkg/seaice: some test code for ice-modified ocean stress
619    o exf_getffields interpolation defaults to bilinear for all scalar forcing
620      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
621      spurious negative numbers for precipitation and humidity.  Will cause
622      some small numerical differences for integrations using pkg/exf/exf_interp.F.
623    o pkg/ctrl/
624      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
625        May be enabled via doPackDiag
626      *  introduce z-scaling of
627         + gradient (doZscalePack) and
628         + control (doZscaleUnpack)
629    o pkg/mdsio/
630      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
631      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
632    
633    checkpoint57b_post
634    o simplify options in diagnostics_fill arguments (remove weird combinations)
635    o fix MNC coordinate variables so that they now contain per-face index
636      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
637      general, EXCH2 grids are only aligned to a "local" coordinate system
638    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
639    o Implement instantaneous output within pkg diagnostics:
640      setting a negative frequency in data.diagnostics produces
641     "snap-shot" output (as opposed to time-average if freq > 0)
642    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
643      NOTE: change ptracer diagnostics name: use 2 characters to work with
644            more than 9 tracers. Add also diagnostics of advect & diffus flux.
645    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
646      becomes the coordinate variable for the 'T' dimension
647    o add CF-style coordinate variables to MNC
648      - just a first cut:  numbers are meaningless on the cubesphere and
649        missing along the T axis but otherwise it works!
650    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
651    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
652    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
653      this is based directly on what the model compute, so that the content of
654      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
655    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
656    o clean up build options files for SunOS, in particular
657      - remove -traditional from xmakedepend
658      - change -xarch=v9 to -xarch=native for f77
659      - restore use of make (not gmake)
660      - add CC=gcc if using g77
661    o changes per discussion of AM, JMC, & EH3 today:
662      - move redundant "grid" variables out of "state" -- in preparation of
663        creating proper CF-style coordinate variables and in recognition
664        that any/all grid variables can be easily copied (eg. w/NCO) from
665        the grid files into any of the other NetCDF files
666      - *always* output grid variables with MDSIO (this will eventually be
667        changed)
668      - output MNC grid file if useMNC is true
669    o every instance of _END_MASTER() has been found and replaced with
670      _END_MASTER( myThid ) in order to satisfy certain picky Sun
671      preprocessors
672    o re-arrange diagnostics pkg initialisation:
673     - allow each package to extend the available diagnostics list
674     - add some checking and fix small problems (multi-threaded, ...)
675     - new S/R diagnostics_fill (replace fill_diagnostics):
676       look through the short list of active diag. (instead of the long list)
677       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
678    
679    checkpoint57a_post
680    o this set of changes restores TAMC compatibility
681      tested for global_ocean.90x40x15 adjoint on trough
682      (what a pain)
683    
684    checkpoint57a_pre
685    o some modifs in tools/build_options for sunos
686    o call ctrl_pack for ctrl at end for optimcycle=0
687    
688    checkpoint57
689    o add horizontal bi-harmonic viscosity for vertical velocity
690      - new parameter viscA4W (defaults to viscA4)
691      - affects only non-hydrostatic code
692      - to be done: no-slip lateral boundary conditions
693    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
694    o implement Implicit Vertical advection for pTracers
695    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
696      (implemented also for implicit vertical diffusion & advection)
697    o OBCS: extend application of tracer open boundary conditions
698      to a strip beyond the boundary of width Olx/Oly
699    o add call monitor to TAF set of required calls (flow directives)
700      and include in natl_box_adjoint
701    o untangle a few ifdefs related to cost, ctrl, autodiff
702      untangel a few ALLOW_ECCO_OPTIMIZATION
703    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
704      (theta2, salt2 in ecco_cost_weights)
705    
706    checkpoint56c_post
707    o OBCS as control variables
708      - update ctrl_ad_diff.list, obcs_ad_diff.list
709      - remove balance of obcs controls from default
710      - fix index bug nobcs in ctrl_init
711      - fix dummy fields filen in ctrl_pack
712      - add dummy weights for obcs
713    o lsopt: comment out fort.94 output
714    o optim:
715      - remove unnecessary header files
716      - adjusted namelists
717      - add xerbla.F to Makefile
718    o exf:
719      - multiple modifications of exf_check_range
720      - unit change in exf_init_runoff from [m/year] to [m/s]
721    o mdsio:
722      - i/o-vector change debugLevel from debLevA to debLevB
723    
724    checkpoint56b_post
725    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
726      is called from DO_THE_MODEL_IO
727      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
728      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
729      - clean up PTRACERS_WRITE_TIMEAVE a little
730    o add another verification experiment that tests both the cfc-pkg and
731      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
732      reactive tendencies treated inline with regular timestepping
733    o testreport previously did a lousy job of comparing small numbers, so
734      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
735      implemented in the little c-progam tmp_cmpnum.c which is embedded in
736      testreport.
737    o ptracers_monitor: bug fix for MPI
738    
739    checkpoint56a_post
740    o GCHEM: finish reorganizating the package
741      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
742        (introduces another 3D-array for each passive tracer, but only if
743        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
744        gchemTendency is not needed because the timestep is done separately)
745      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
746      - GCHEM is now---more or less cleanly---separate from PTRACERS
747      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
748        so clear to me how that should be done in a general way.
749    o CFC: improve formatting of output in CFC_ATMOS
750    o PTRACERS:
751      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
752        that ALL experiments with ptracers enable can be checked. This makes
753        GCHEM_MONITOR obsolete.
754      - include a runtime parameter PTRACERS_monitorFreq that defaults to
755        monitorFreq
756      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
757    o add PTRACERS (PTR0[1-5]) to testreport output
758    o exf_check_range:
759      * default changed to .TRUE.
760      * will check values for niter0 if debLevA, every timestep if debLevB
761      * STOP in exf_check_range if 'out of range'
762      * range chosen generous to allow for potential extema
763      TBD: a version with stricter range
764           permitted range would be runtime parameters
765    o GMredi:
766      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
767      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
768      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
769    o GCHEM:
770      - move call to GCHEM_FORCING_SEP, so that it is now called before
771        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
772      - introduced a useGCHEM runtime flag and applied it everywhere.
773      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
774        this flag is now only visible within GCHEM-pkg routines.
775      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
776        be replaced by a 3D array that is computed before thermodynamics; for
777        this, the tracer ID iTracer had to be included into the parameter list
778        of ptracers_forcing
779      - set up forward_step to call gchem_forcing, that will replace
780        gchem_forcing_int in ptracers_forcing
781      - cleaning up
782    o small cleaning of exch2: remove files that are also in eesupp/src
783    
784    checkpoint56
785    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
786    o mnc: cleanup "full" files--fixes out-of-memory problem
787    o ECCO-GODAE
788      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
789      * fully merged and updated from SIO code
790        windstress sign change affects
791        - exf_inscal_[u/v]stress
792        - sign of xx_tau[u/v] adjustments
793        - signs in cost_scat
794      * ctrl_get_gen: avoid update of tau[u/v] for first few days
795      * natl_box_adjoint updated and compressed
796      * 2-level checkpoint switch added
797        (tested in EXP. 1 of natl_box_adjoint)
798      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
799    o SVD
800      * first complete, non-hacked version for SVD calculations
801      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
802        performed via direct access files admtlm_vector.it????
803        (via ctrl_[un]pack)
804      * optimcycle is used for ARPACK iteration counter
805        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
806      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
807        and add linear transforms where necessary
808      * controls are initial/final SST, SSS (can be extended; need to check
809        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
810    o mdsio: filename info to both stderr, stdout
811    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
812      from sign change
813    
814    checkpoint55j_post
815    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
816      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
817    o add consistent build directories and .cvsignore files to verification
818    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
819    o make all subroutines 30 or less characters in length for certain older
820      compilers to work (a thorough search only turns up two routines in
821      pkg/ptracers)
822    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
823      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
824    
825    checkpoint55i_post
826    o change arrays for total vertical diffusivity (2.D if explicit,
827      3.D if implicit) ; each ptracer uses its own background value.
828    o added mnc/NetCDF output capability to ocn_compon_interf
829      - added bits to verification/cpl_aim+ocn so that it can run on
830        ITRDA and other clusters without the mpirun "-wd" option
831    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
832      configuration
833    o give MNC the ability to create additional files rather than
834      exceeding a specified file size limit "MNC_MAX_FILESIZE"
835      - the default is just less than 2GB which is a practical limit
836        on many systems
837    o Compute the non-local term using either KPP vertical diffusivity (=default)
838       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
839    
840    checkpoint55h_post
841    o add verification test "vermix"
842    o remove all the *_ioinc flags and replace with the single global
843      outputTypesInclusive flag
844    o allow to set a vertical profile of vertical diffusivity for T & S
845    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
846    o useMNC moved from data.mnc to data.pkg
847    
848    checkpoint55g_post
849    o Renaming carbon AD experiments to comply with testreport conventions
850    o Updating adjoint of Held-Suarez hs94.1x64x5
851    o Fixing directives for non-ECCO forward_step, after ECCO directives
852      have been fixed to avoid recomp. of do_oceanic_phys
853      Works well for global_ocean.90x40x15,
854      but recomp. issue remains for carbon
855    o Updating adjoint output for natl_box_adjoint after
856      pkg/ecco has been modified (see taga c55d_post)
857    
858    checkpoint55f_post
859    o rename to timeave_init_fixed
860    
861    checkpoint55e_post
862    o some delicate re-shuffle of store directives to avoid one
863      extra call of do_oceanic_physics
864      affects ecco_the_main_loop.F, do_oceanic_physics.F
865      checkpoint_lev1_directives.h
866    o NB: this may break global_ocean adjoint temporarily,
867      but it is clear how to fix it. Will do later, need this now.
868    
869    checkpoint55d_post
870    o ECCO specific cost function terms (up-to-date with 1x1 runs)
871    o ecco_cost_weights is modified to 1x1 runs
872    o modifs to allow observations to be read in as
873      single file or yearly files
874    o enable to read exf forcing fields as either
875      single file or yearly files (flag useExfYearlyFields)
876    checkpoint55d_pre
877    
878    o switch between 2-level and 3-level checkpointing
879    o add ability of MNC to write local and "partial" (eg. 2D slices where
880      the full 3D field is never actually stored) arrays to NetCDF files
881      with the correct (that is, the complete multi-dimensional) set of
882      array indicies
883      - used in mom_vecinv() to write the diagFreq output
884      - tested (demonstrated) in verification/aim.5l_cs
885    o further mnc-ification
886      - add verification/lab_sea to the list with mnc setups
887      - fix undefined mnc v-names in cd_code
888      - add kpp to mnc output (both snapshot and timeave)
889    o non-hydrostatic code
890      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
891        in calc_gw.F
892      - defaults to viscAh
893      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
894        friction or Leith) in non-hydrostatic mode, as long as there is
895        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
896    o pkg/cost
897      extend simple cost functions to treat time mean quantities
898      (T,U,V) via cost_accumulate_state from cost_tile
899    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
900        be 2 times larger than the minimum size the advection scheme requires.
901        now get a perfect conservation of salt in advect_cs test-exp (updated)
902    o GGL90 (Gaspar's TKE mixed layer)
903      - add horizontal diffusion of TKE, requires exchanges in
904        do_fields_blocking_exchanges, horizontal diffusivity is zero by
905        default. In OPA there is no horizontal diffusion of TKE but the
906        mixing coefficients are computed from a horizontal average of TKE of
907        6 points or so. I think that diffusion has a little more physical
908        justification.
909      - clean up ggl90_calc in the hope of reducing memory usage (this hope
910        was in vain)
911      - mask tke-variable in ggl90_init
912    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
913    o fix biharmonic diffusion on CS-grid.
914    o more obcs stuff
915      - added obcs_external_fields_load as an alternative to the EXF-pkg option
916        for reading boundary values. This routine is called from
917        obcs_prescribe_read
918      - updated obcs_check
919      - changed sponge layer relaxation parameter units for days to seconds
920      - turned off sponge layer by default
921      - changed argument list of OBCS_CALC to myTime+deltaTclock
922      - fixed about 35 bugs in obcs_external_fields_load
923    
924    checkpoint55c_post
925    o obcs stuff
926      - new runtime flags useOBCSprescribe, useOBCSbalance
927      - re-arranged obcs_calc
928      - moved exf_getobcs to obcs_prescibe_read
929        obcs_prescibe_read is called after ORLANSKI stuff
930        and independent of it (executable can contain all).
931      - updated obcs_check
932      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
933        These may be necessary only if tangential velocities are
934        prescribed at OB, not sure, needs testing.
935    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
936      which simplifies the calls and passes the ifc check-bounds test
937    
938    checkpoint55b_post
939    o add a 2D scalar, Z location, exchange_2 routine.
940    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
941      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
942      affects advect_cs results (for the wrong reason): update output.txt
943    o use a more standard discretization for biharmonic viscosity ;
944     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
945      affects results of dome set-up: update output.txt
946    o fix gad_advection.F (CubedSphere part), back to version 1.23
947    o fix bug in mom_vi_del2uv.F (CubedSphere part).
948    
949    checkpoint55a_post
950    o merged code to
951      * prescribe/read time-dependent open boundaries
952        (works in conjunction with exf, cal)
953      * sponge layer code for open boundaries
954      * each boundary N/S/E/W now has its own CPP option
955        (healthy for the adjoint)
956    
957    checkpoint55
958    o up-to-date adjoint of previous breaks
959      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
960      - global_ocean_ebm: adjoint still needs fix (TLM ok)
961      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
962      - carbon: * remove tr1-related adjoint verification
963                * add ptracer as control variable
964    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
965      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
966    
967    checkpoint54f_post
968    o in verification/carbin/ remove experiment related to
969      ALLOW_PASSIVE_TRACER (array tr1 etc)
970      code_ad/ input_ad/ results_ad
971    
972    o add two new packages
973      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
974        + subject to optimization (memory)
975      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
976        + subject to reordering (many GOTOs in the original code)
977        + so far opps is called for every (i,j) point, and then operates in
978          the vertical; one may want to reorder the scheme in order operate in
979          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
980          fields)
981    o overhaul of IO so that we now have flags for MDSIO and/or MNC
982      - all verification tests compile and run with linux_ia32_g77
983      - defaults are compatible with current input files--nothing
984        should change if you were not previously using MNC
985      - MNC output has been added in numerous places (eg. timeave)
986        but there are still a few writes not yet do-able with MNC
987        (this is in progress)
988      - flags now allow for either/or/both use of MDSIO and MNC and
989        documentation will soon follow
990      - numerous small formatting cleanups for ProTeX
991    o add version info (via BUILD_INFO.h) to MNC and stdout
992    
993    checkpoint54e_post
994    o add two new packages
995      - pp81 (Packanowski and Philander, 1981), Richardson number and
996        stratification dependent mixing
997      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
998      - these scheme operate in a similar manner as KPP (without ghat, of
999        course), however there is only one diffusivity that is used for both
1000        temperature and salinity (and passive tracers)ç
1001    o add offline package
1002    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1003      provided by Stephanie Dutkiewicz
1004    o genmake2: add ability to search for C compilers and cleanup test output
1005      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1006    
1007    checkpoint54d_post
1008    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1009    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1010      leading to additional shift by 5 days each year of integration
1011       (i.e. leading to considerable offset over the years)
1012    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1013    o start with no AB and no initial filtering (staggerTimeStep):
1014      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1015    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1016      (external loading & cpl import/export stay in forward_step.F)
1017    o update coupling interface to work with new staggerTimeStep
1018    o change MDSIO ptracers_pickup.
1019    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1020    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1021    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1022    
1023    checkpoint54c_post
1024    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1025      this affects (truncation error) output.txt of test-exp:
1026       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1027    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1028    o change Qnet to always be the net heat flux, (+upward).
1029      affects (truncation error) output of natl_box exp.: updated
1030    o define the max number of passive tracers in PTRACERS_SIZE.h
1031    o start to test mnc routinely in exp0
1032    o add sea-ice loading (sIceLoad) as a new forcing field.
1033    
1034    checkpoint54b_post
1035    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1036       impressive on Altix and Opteron systems)
1037    o diagnostics can now write NetCDF files through the mnc package
1038    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1039    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1040    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1041      affects (truncation error) output of lab_sea & natl_box exp.: updated
1042    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1043    
1044    checkpoint54a_post
1045    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1046    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1047    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1048    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1049      + internal_wave (shift in writing cg2d_ini_res)
1050    checkpoint54a_pre
1051    
1052    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1053      - modified verification/lab_sea and natl_box_adjoint accordingly
1054    
1055    checkpoint54
1056    checkpoint53g_post
1057    o prepare splitting of thermodynamics: store convect.counter in common block
1058    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1059      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1060    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1061    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1062    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1063    o restore adjointability
1064    
1065    checkpoint53f_post
1066    o modifications that affect AIM experiment results (update output.txt):
1067      - no advection of S at top interface Nr (pkg/generic_advdiff)
1068      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1069    o AIM pkg:
1070      - include stability function into surf.Flux derivative relative to Tsurf
1071      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1072    
1073    checkpoint53e_post
1074    o merged cylindrical coord configuration
1075    o added rotating_tank experiment
1076    checkpoint53e_pre
1077    
1078    checkpoint53d_post
1079    o faulks upgraded: re-generate output.txt that have changed:
1080       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1081    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1082    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1083    o added Sadourny discretization of Coriolis
1084      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1085      - re-enabled use of omega3 (useAbsVorticity)
1086    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1087      vector-invariant equations
1088      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1089    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1090      hopefully without new bugs
1091      - still to do: biharmonic friction for non-hydrostatic w
1092    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1093    o regenerated output for global_ocean_ebm (using -ieee)
1094    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1095      of mom_common/
1096      - simple re-arrangement of instructions within computing loop
1097    checkpoint53d_pre
1098    
1099    checkpoint53c_post
1100    o new version of coupler for AIM+thSIce and Ocean models
1101     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1102     - land: change Evaporation of snow
1103     - aim with thSIce: fix bug in snow-precip.
1104    o changes to calc_gw.F
1105     - bug fix for w^2 term near the bottom boundary
1106     - (hopefully) improve the lateral slip boundary condtions for use with
1107        partial/looped cells
1108      - because the bug fix changes two verification experiments anyway (exp5
1109        and plume on slope), change the lateral boundary condition from half slip
1110        to the value of no_slip_sides
1111    o ebm package wasnt quite up to the parallel task. Fixed that.
1112    o Adjoint of EBM package + verification
1113      * TLM OK
1114      * ADM not sufficient accuracy yet (needs further testing)
1115    
1116    checkpoint53b_post
1117    o Commiting new energy balance model to repository
1118      * package is pkg/ebm
1119      * verif. is verification/global_ocean_ebm
1120      * references are in ebm_driver.F
1121    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1122    C        Global thermohaline circulation. Part I:
1123    C        Sensitivity to atmospheric moisture transport.
1124    C        J. Climate 12(1), 71-82
1125    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1126    C        Global thermohaline circulation. Part II:
1127    C        Sensitivity with interactive transport.
1128    C        J. Climate 12(1), 83-91
1129    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1130    C        Destabilization of the thermohaline circulation
1131    C        by atmospheric eddy transports.
1132    C        J. Climate 7(12), 1870-1882
1133    o Will need long integration testing.
1134    checkpoint53b_pre
1135    
1136    o created pkg/mom_common in preparation for variable viscosity code
1137    o renamed and split ini_mnc_io
1138    o pkg/land: only liquid water can diffuse or run-off
1139    o AIM using land: soil wetness availability account for snow
1140    o added printMapIncludesZeros to EEPARMS namelist
1141    
1142    checkpoint53a_post
1143    o restore TAMC compatiility for exf_constants.h
1144      (no usage of _d in .h)
1145    o Additional storing in KPP in an attempt to fix
1146      TAMC problem with adjoint of KPP code.
1147      (no success...)
1148      Identical code works fine with TAF.
1149    o Fixed verification/natl_box_adjoint experiments.
1150      Initial conditions for Experiments 4 and 5 are now
1151      set to "SEAICE_initialHEFF=0", which is more reasonable,
1152      and hence gives results closer to that of Experiment 2.
1153      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1154    
1155    checkpoint53
1156    o stable checkpoint with up to date adjoint
1157      TLM tests only run for 1st grdchk at the moment. Its unclear if
1158      this is a code problem or a problem with resetting code for g_
1159      variables that is being autogenerated wrong.
1160      Otherwise:
1161       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1162       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1163         are both still in chaos following their security messes.
1164    
1165    checkpoint52n_post
1166    o various build (mostly genmake2) changes including:
1167      - ability to build/run more easily within Cygwin and MacOS X
1168      - more complicated Makefiles with a stronger dependence on Gnu Make
1169    o pkg/seaice modifications
1170      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1171        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1172        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1173      - changed proxy for geostrophic velocity and updated
1174        verification/lab_sea/results/* accordingly
1175      - removed ADI dynamic solver from pkg/seaice
1176      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1177        they caused a segmentation fault under certain circumstances
1178      - removed unused field WATR
1179    o bug fix in exf-package:
1180      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1181         now reflect that.
1182    o small fixes in the cal-package:
1183      - set reference date to first of January for the 'model'-calendar
1184      - failing of cal_CheckDate in cal_FullDate now actually results in a
1185        warning
1186    o small modifications in exf-package to increase flexibility:
1187      - change climtempfreeze from a constant to a runtime parameter that
1188        is specified in data.exf_clim (default = -1.9)
1189      - introduce runtime parameter windstressmax (default = 2.0) that is
1190        specified in data.exf
1191    o fix in pkg/thsice:
1192      - update Evap (Tsf changes) to be consistent with Latent heat flux
1193      - maintain snow precipitation unchanged (even if Tsf >=0).
1194     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1195    
1196    checkpoint52m_post
1197    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1198      this does not change any of the results, because myIter=0 in swfrac always
1199      lead to jwtype=2 (the default anyway), but the call makes little sense
1200      as a default
1201    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1202    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1203      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1204    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1205    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1206    o extending useSingleCpuIO option to work with new exch2 I/O format
1207      - old-style, missing-tile I/O is still accessible by defining CPP
1208        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1209    o monitor package can write to NetCDF files and/or STDOUT
1210    o fix re-definition bug in MNC_GRID_INIT_ALL()
1211    o doc/api_reference added
1212      - a framework for building an API Reference Manual using all
1213        the "protex" comments embedded in the code
1214      - see pkg/generic_advdiff, pkg/mnc for examples
1215    o MNC:
1216      - make myThid the last argument for all subroutines
1217      - new default for the grid files: NO halos
1218      - add useMNC and other run-time flags
1219      - separate per-file-group handling of the unlimited dimension
1220      - early initialization of MNC w/ flags read at the eeboot stage
1221        and lookup tables set in initialize_fixed
1222      - write all MNC output to a freshly-created directory
1223    o thermodynamics sea-ice (thsice) is now tested with testreport.
1224    o test exp. advect_cs: use the standard cs32 grid ; update output.
1225    o Added functionality to grdchk:
1226      pick global i,j,k position (or nearest wet) where to perform check.
1227    
1228    checkpoint52l_post
1229    o new land formulation:
1230      a) use ground enthalpy as prognostic variable to ensure exact
1231         energy conservation.
1232      b) account for water temperature and for latent heat of freezing
1233         in all processes (rain, run-off, ground storage)
1234      c) compute surface and ground temperature implicitly.
1235    o aim_v23 modification for new land model:
1236      a) Treat separately land / ocean / sea-ice surface fluxes
1237         to allow implicit computation of land & sea-ice surface temp.
1238      b) add snow precipitation.
1239    checkpoint52l_pre
1240    
1241    o fix problem (when 1 tile is empty) in min/max monitor.
1242    o fix bug in timeAve (u,vZetatave in common block)
1243    o no restoring terms under ice for pkg/seaice
1244    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1245    o bug fix for pkg/seaice pickups
1246    o change MNC call locations and add coordinate attributes
1247    o mask vorticity at the corner ; affects global_ocean.cs output
1248    o fix ini_curvilinear_grid ; test CS experiments with mpi
1249    o aim.5l_cs: modify sea-ice fraction input file ; update output
1250    o exf: Adding simple range check routine for exf fields after read
1251    
1252    checkpoint52k_post
1253    o removed top-level directory "diags"
1254      - we migrated these functions to pkg/timeave a long time ago
1255    o fixed bug introduced in pkg/monitor
1256    o accuracy ctrlprec = 32 insuffient for gradient checks using
1257      averaged fields (I/O via cost_averages)
1258      -> use ctrl.h in active_file*.F to control I/O precision.
1259    o paramter list of CALL ADTHE_MAIN_LOOP
1260    o added initial do_the_model_io to ecco
1261    o set all ...Freq to zero after cost_final
1262      taveFreq, dumpFreq, pChkptFreq
1263    o MAIN and ECCO differentiability restored
1264    
1265    checkpoint52j_post
1266    o fix nchklev in tamc.h for global_ocean...
1267    o Bringing flow and store directives up-to-date
1268    o Really weird thing!
1269      call do_the_model_io from the_main_loop with parameters
1270      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1271      TAF places a faulty re-call of initialise_varia
1272      after cost_final call which should not be there!
1273    checkpoint52j_pre
1274    
1275    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1276      error messages
1277    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1278    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1279      debug output
1280    o modfied mdsio_writefield.F to handle non-global files under exch2
1281    o update AIM Cubed-Sphere exp (aim.5l_cs):
1282      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1283    o update AIM Equatorial Channel exp:
1284      use standard aim_v23 pkg and change the SST fields to be more realistic.
1285    o globalFile now works with exch2
1286    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1287      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1288    o limit timeave output for hi-res integrations
1289    
1290    checkpoint52i_post
1291    o removed CPP_EEOPTIONS.h from verification/*/code
1292    o updated the tiling for global_ocean_pressure
1293    checkpoint52i_pre
1294    
1295    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1296      the old pkg/aim).
1297    
1298    checkpoint52h_pre
1299    o shortened offending lines in exch2_send_rx?.template
1300    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1301    o genmake2: add build & execute test for NetCDF code
1302    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1303      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1304    o added useSingleCPUIO flag to monitor.F and mon_out.F
1305    o added temporary hack for sea-ice dynamics on the cube:
1306      metric terms are ignored and it is assumed that
1307      there is no sea-ice on cube faces 1, 2, 4, and 5.
1308    
1309    checkpoint52f_post
1310    o added exch2 cube routines to pkg/exch2
1311    o modified hs94.cs-32x32x5 to use it
1312    o added new grid files to hs94.cs-32x32x5
1313    checkpoint52f_pre
1314    
1315    checkpoint52e_post
1316    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1317      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1318    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1319      to work with implicit vertical advection and AB ;
1320    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1321    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1322     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1323    checkpoint52e_pre
1324    
1325    o fix bug in impldiff when Nr=1 or Nr=2.
1326    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1327    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1328    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1329      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1330    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1331    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1332    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1333    
1334    checkpoint52d_post
1335    o re-tiled many expts to allow comparison in multi-processor mode
1336      - updated output accordingly
1337      - changed hs94.128x64x5 to use intial T from file rather than use the
1338        random number generator
1339    o add infrastructure in model routines for fizhi and gridalt packages
1340    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1341    o changes to permit hi-res, cubed-sphere, configuration
1342      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1343      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1344      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1345        of surface winds for the cube
1346      (A verification experiment, based on global_ocean.cs32x15, but with
1347       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1348       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1349       complete with example surface forcing files and matlab scripts to look
1350       at the output and compare it with that of global_ocean.cs32x15.)
1351    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1352       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1353       to conform to the common rule.
1354    o check-in the first version of the coupler + interfaces for multi-components
1355       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1356       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1357       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1358       - ocean and atmos. share the same horizontal grid (no interpolation).
1359       - exchanges between component and coupler is done in forward_step
1360    o new verification experiment, cpl_aim+ocn:
1361       coupled ocean - AIM atmosphere on cs32 grid.
1362    
1363    checkpoint52d_pre
1364    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1365    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1366    
1367    checkpoint52c_post
1368    o Fixing OPTIONS files for use of exf:
1369      - ALLOW_ECCO not needed
1370      - ECCO_CPPOPTIONS.h should not be included from
1371        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1372        as has been the case in the past
1373      - All cal/exf related options are currently set in
1374        single header file. Should remain so until we
1375        agree on a consistent new policy.
1376    o Removed all CPP options for cal package.
1377      cal has no more CPP options.
1378    o modified STOREs in GAD_ADVECTION
1379    o corrected key comp. for passkey
1380    
1381    checkpoint52b_post
1382    o new version: "thsice" of thermodynamic sea-ice pkg:
1383     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1384     - modify fluxes but do not change theta directly;
1385     - light cleaning of bulk_force pkg (still needed with thsice).
1386     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1387       + output_thsice.txt to test thsice & bulk_force pkgs.
1388    o put back grid & coriolis monitor output.
1389    checkpoint52b_pre
1390    
1391    o call "do_the_model_io" at the beginning (=> dump initial state)
1392    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1393    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1394      (need info on NUMBER_OF_PTRACERS)
1395    o missing PTRACERS headers in some routines
1396    o default tamc.h in pkg/autodiff supposed to crash
1397      to ensure proper customization
1398    
1399    checkpoint52a_post
1400    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1401      - moved surfaceTendencyTice from pkg/seaice to main code
1402      - subroutine FREEZE_SURFACE now limits only surface temperature
1403        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1404        => new output.txt for global_ocean.cs32x15 & global_with_exf
1405      - keep the old version of FREEZE for backward compatibility;
1406        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1407      - corresponding modifs for TAF directives
1408    o added surface flux output variables to TIMEAVE_STATVARS
1409    o time-averaged output for pkg/ptracers
1410    o fix problem with ECCO-related divided adjoint
1411      snapshot file was missing some ad-variables,
1412      but no warning issued by TAF
1413    
1414    checkpoint52a_pre
1415    o some bug fixes for #undef REAL4_IS_SLOW
1416    
1417    checkpoint52 = ecco_c52_e35
1418    o after testing adjoints of checkpoint51u_post
1419    
1420    checkpoint51u_post
1421    o this is the post-merge tag of the ecco-branch
1422      (needs another clean checkout and re-testing)
1423    o various natl_box_adjoint configs and results
1424      but no input fields
1425    o obcs adjoint not yet merged!
1426    o adding ECCO global 1x1 and 2x2 degree configs
1427    o updated/extended some store directives for seaice
1428    o pkg/ecco now containes ecco-specific part of cost function
1429    o top level routines the_main_loop, forward_step
1430      supersede those in model/src/
1431      previous input data.cost now in data.ecco
1432      (new namelist ecco_cost_nml)
1433    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1434    
1435    checkpoint51t_post
1436    o this is the pre-merge tag of the ecco-branch
1437    
1438    checkpoint51s_post
1439    o cleanup: removed various obsolete #define-s
1440    o pkg/grdchk
1441      - renamed 'ph-grd 3' to 'grad-res'
1442      - merged from ecco-branch
1443        (remaining bug fixes for obcs gradient checks)
1444      - additional high-precision output for testreport
1445        (grep for 'precision_grdchk_result')
1446    
1447    checkpoint51r_post
1448    o cleaned up or removed CPP_OPTIONS.h files
1449    o updated results for some of the tests to reflect the new
1450      optfiles (-ieee: -O0 instead of -O3)
1451    
1452    checkpoint51q_post
1453    o cd_code:
1454      - moved cd_scheme.F -> cd_code_scheme.F
1455      - separate read_checkpoint from cd_code_ini_vars.F
1456      - separated cd_code part from write_checkpoint
1457      - updated AD_SOURCE, generated .flow
1458      - added CD_CODE_VARS.h to the_main_loop
1459      - Moving cd_code specific store dir.s to pkg/cd_code
1460    o ctrl package totally restructured
1461      - pack/unpack now optional and decoupled from
1462        xx_/adxx_ I/O
1463      - ctrl_pack/unpack cleaned
1464        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1465      - confined inclusion of AD_CONFIG.h to where necessary.
1466    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1467    
1468    checkpoint51p_post
1469    o create initial cd_code package
1470      - WARNING: the initialization of fields within packages
1471        is broken because INI_FIELDS (where READ_CHECKPOINT is
1472        called) is called *before* PACKAGES_INIT_VARIABLES.
1473        This seems to be backwards since
1474        1) its important to initially zero the entire field including
1475           the "halo" region
1476        2) zeroing needs to be done *before* reading pickup info
1477           and the pickup call might or might not happen in any
1478           particular run
1479      - this needs an overhaul for R2
1480    o cleanup verification/*/code/GMREDI_OPTIONS.h
1481    o cleanup testreport
1482    
1483    checkpoint51o_post
1484    o bringing AD-related verif's up to date with genmake2
1485      - carbon/
1486      - global_ocean.90x40x15/
1487      - hs.94.1x64x5/
1488      - (front_relax/ )
1489    o (more) consistent directory structure for AD-related verif.'s
1490    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1491    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1492    o bug fix in find_alpha.F for MDJWF:
1493      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1494        change rho -> rho-rhoConst
1495      - replace call find_rho to find_rhonum
1496    o initialisation of rFlx extended to full array (required by TAF)
1497      and shifted to thermodynamics
1498    o removed PTRACERS.h in ptracers routine
1499    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1500    o Correcting initialisations for fVerU, fVerV.
1501    o helping TAF to recognize dependency on kUp for
1502      fVerU, fVerV
1503    o Replacing delZ by delR in pkg/ctrl/
1504    checkpoint51o_pre
1505    
1506    o undid all of cp51 pending some cleanups and discussion
1507    o added the [#include "AD_CONFIG.h"] statement to all files that need
1508       it for adjoint/tl #defines
1509     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1510     o removed tools/genmake since it no longer works
1511    
1512    checkpoint51n_post
1513    o modifications to make FREEZE flux visible to pkg/kpp
1514      - moved surfaceTendencyTice from pkg/seaice to main code
1515      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1516      - subroutine FREEZE now limits only surface temperature
1517        (this means new output.txt for global_ocean.90x40x15,
1518         global_ocean.cs32x15, and global_with_exf)
1519    o added surface flux output variables to TIMEAVE_STATVARS
1520    
1521    checkpoint51n_pre
1522    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1523    o added [#include "AD_CONFIG.h"] to all files that use the following
1524      defines:
1525      - ALLOW_ADJOINT_RUN
1526      - ALLOW_TANGENTLINEAR_RUN
1527      - ALLOW_ECCO_OPTIMIZATION
1528    
1529    checkpoint51m_post
1530    o incorporating changes to get TAMC/TAF working in genmake2
1531      - added new TAMC/TAF targets to the Makefile
1532      - various cleanups related to package handling
1533      - these changes should have no impact on the forward model
1534    
1535    checkpoint51l_post
1536    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1537     - faster algorithm for cal_addtime.F
1538     - higher precision arithmetic, where needed
1539     - pkg/exf *startdate variables changed from calendar date to
1540       model integration time
1541    
1542    checkpoint51l_pre
1543    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1544    o enable to apply restoring on S & T only in a latitude band.
1545    o update output (external_forcing_surf modif. change truncation errors)
1546       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1547    
1548    checkpoint51k_post
1549    o change default to: useNHMTerms=.FALSE.
1550     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1551       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1552     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1553        exp1, ideal_2D_oce
1554     - change data file of oceanic exp (leave the results unchanged for now)
1555       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1556    o set gravitySign automatically according to the vertical coordinate used
1557      (and change sign: back to "logical" value: +1 when R increases downward)
1558    o added an include barrier to the default CPP_OPTIONS.h and
1559      removed the #include "PACKAGES_CONFIG.h" from it
1560    o fix a bug in mom_fluxform (from chk51j_post)
1561    
1562    checkpoint51j_post
1563    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1564    o adjusted some flow directives (dynamics, thermodynamics)
1565    o added cubed-sphere case to test cost function
1566    o heckpoint_lev?_directives.h now include
1567      pkg-specific directives, whenever those are enabled.
1568    o Moving pkg-specific flow directives to corresponding pkg
1569      Moving pkg-specific differentiation list to corresponding pkg
1570      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1571      ---> conventions are
1572           - pkg_ad.flow
1573           - pkg_ad_diff.list
1574           - pkg_ad_check_lev?_dir.h
1575    
1576    checkpoint51i_post
1577    o merge of the branch-genmake2
1578      - knowingly breaks the older genmake
1579      - automatic generation of all ALLOW_${PKG_NAME} defines
1580      - new testreport supersedes older testscript
1581    o large number of package inclusion and header cleanups
1582    checkpoint51i_pre
1583    
1584    o new output for adjoin of global ocean vector invariant
1585    o fix for checkpoint of thermodynamic seaice and bulk_force
1586    o Steph gchem various cleanups
1587    
1588    checkpoint 51h_pre
1589    o fixed some single quotes
1590    o modify gchem pkg to be more versatile
1591    o modifications to clean up dic pkg
1592    o add pkg/cfc
1593    
1594    checkpoint51g_post
1595    o provide links for ARPACK and ADM*TLM
1596    o start removing verification/vero/
1597    o update AD-related stuff
1598      (in particular some IF-statements in model/src/ routines)
1599    o adding to verification/global_ocean.90x40x15/ adjoint of
1600      vector invariant setup
1601    
1602    checkpoint51f_post
1603    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1604    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1605      of tracer Green's fucntions for ocean inversion project.
1606    
1607    checkpoint51f_pre
1608    o Added on-the-fly spatial interpolation capability
1609        "USE_EXF_INTERPOLATION" to pkg/exf.
1610      - This is a temporary Cartesian-grid hack until
1611        the super-duper ESMF coupler becomes available.
1612      - See verification/global_with_exf/README for usage example.
1613      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1614        flags and modified pkg/seaice accordingly.
1615    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1616        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1617        non-local transport term.
1618    
1619    checkpoint51e_post
1620    o pkg/mom_vecinv:
1621      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1622      - add time-ave diagnostic of vorticity advection.
1623    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1624    o atmospheric geopotential: - include water vapor effect;
1625                                - use p^kappa in p* scaling.
1626    o land pkg: read initial state from files.
1627    o AIM : add stratospheric drag in the upper level
1628    
1629    checkpoint51d_post
1630    o change function ILNBLNK (=> last non-blank char.) to return zero
1631      (instead of the string length) when the string. char is empty
1632    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1633    o modif's to restore TAMC compatibility
1634      - avoid "_d" constructs in PARAMETER declarations
1635      - avoid interrupting lines by comment lines
1636    o Use cluster local disks for purely local I/O
1637      vs. globally visible disks needed for ctrl stuff
1638      (merged from ecco-branch)
1639      - new active_file_loc... and mdsio_..._loc routines
1640      - affected packages: autodiff, ctrl, grdchk, mdsio
1641    
1642    checkpoint51c_post
1643    o introducing integer flag debugLevel
1644      - debLevZero: suppress all output
1645      - debLevA: standard
1646      - debLevB: equivalent to current debugMode=.TRUE.
1647    o introducing pathname variable mdsioLocalDir for mdsio
1648      that can be specified at runtime
1649      (relevant for cluster I/O to local disk)
1650    `
1651    >>>checkpoint51b_post
1652    adjoint of ptracers
1653    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1654    o extended state in checkpoint_lev?, etc.
1655    o alternative ctrl/cost with tr1 or ptracer
1656    o new comlev1_bibj_ptracers
1657    o new ptracers.flow
1658    o made ptracers_forcing same as external_forcing_s
1659    o added verification for adjoint with ptracers
1660      - adm. grdchk fail so far
1661      - tlm. grdchk OK
1662      - checked tapelev/comlev recomputations: OK
1663    <<<checkpoint51b_pre
1664    
1665    checkpoint51a_post
1666    o added code for biogeochemistry package
1667      - new pkgs: dic, gchem
1668      - new subroutine in ptracers
1669    o modify code for biogeo packages
1670      - in model/src and pkg/ptracers
1671    
1672    checkpoint51
1673    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1674      - autodiff, ctrl, exf, grdchk, seaice
1675      kept separate packages
1676      - cost, ecco, obcs
1677    o updating verification/internal_wave, verification/lab_sea
1678      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1679    
1680    checkpoint50i_post
1681    o Preparing next differentiable checkpoint and sync
1682      of MAIN vs. ecco-branch
1683      - 1st step: this one is differentiable
1684      - 2nd step: next(! not this) checkpoint will have updated packages
1685                  from ecco-branch)
1686    
1687    checkpoint50h_post
1688    o new package "land": provide surface BC for AIM.
1689    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1690    o AIM: use true log-P extrapolation for near surface temp (= as in
1691        F.Molteni paper) ; update aim.5l_cs output.
1692    o New variable in PARM03 for more flexible pickups
1693    o somewhat cleaned package initialisation sequence for
1694      ctrl/ cost/ ecco/ in packages_... routines
1695    
1696    checkpoint50g_post
1697    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1698      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1699      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1700        made the default because of faster convergence than ADI
1701    
1702    checkpoint50f_post
1703    o exf totally restructured
1704      - replaced all exf_set_ routines by one generic exf_set_gen.F
1705        and made sure it's still differentiable
1706      - split exf_getffields.F into new exf_bulkformulae.F
1707      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1708      - updated adjoint/makefile and relevant verif. accordingly
1709    
1710    checkpoint50f_pre
1711     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1712          + change Evap over land. (update aim.5l_cs output)
1713     o added missing .cvsignores and made uniform across expts
1714     o changed configuration of tidal_basin_2d expt
1715     o added pkg/debug functions for tracing code in fatal crashes
1716     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1717     o new fn in pkg/monitor to stop model if solution grows too big
1718     o removed lots of single quotes from comments
1719    
1720    checkpoint50e_post
1721    o make KPP work with PTRACERS
1722     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1723       nearly a copy of kpp_transport_s
1724     - there is no analogue to SurfaceTendencyS, so I have to use
1725       gPtr(of the surface layer) instead
1726    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1727    checkpoint50e_pre
1728    
1729    checkpoint50d_post
1730    o change kpp output from multiple-record state files to single-record state
1731      files analogous to write_state.F
1732    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1733      analogous to the cg2d-related output.
1734    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1735      so that writing to internal file fn (with length 512) fails.
1736    checkpoint50d_pre
1737    
1738    checkpoint50c_post
1739    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1740    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1741    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1742    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1743    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1744    
1745    checkpoint50c_pre
1746    Merging from release1_p13:
1747    o bug fix for pkg/seaice dynamic solver
1748    o Added SEAICE_initialHEFF to pkg/seaice
1749    
1750    checkpoint50b_post
1751    o store u*,v* in gU,V instead of in guNm1,gvNm1
1752    o in order to put the momForcing out of the Adams-Bashforth:
1753      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1754      to timestep.F
1755    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1756    o re-generate output for highly sensitive test-exp:
1757       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1758    
1759    checkpoint50b_pre
1760    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1761    o corrected CPP option mismatch in exf_Bulk... functions for case
1762      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1763    
1764    checkpoint50a_post
1765    o Bug fix for merging between c50 and KPP.
1766      ikey was passed from thermodynamics to kpp_calc via
1767      common block rather than being recomputed in kpp_calc,
1768      in contradiction with new key itdkey.
1769      New key ikppkey created, and tamc.h headers updated.
1770    
1771    checkpoint50
1772    - 2nd step of merge with ecco-branch:
1773      merge changes in ecco-branch back into main trunk
1774    - bug fix in find_alpha
1775    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1776    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1777    - merged some sliced AD support routines
1778    
1779    checkpoint49
1780    merged from ecco-branch:
1781    o exf:
1782      - Enable initialisation of forcing fields to constant
1783        (runtime) values.
1784      - in exf_getffields.F
1785        Reduce i-/j-loop to interior domain, discarding overlaps.
1786        That also fixes wrong TAF-key computations for key_1, key_2
1787        with bulf formulae.
1788      - exf_init.F modify #ifdef for exf_init_evap
1789      - exf_getffieldrec.F, ctrl_getrec.F
1790        The following INT-usages are not safe:
1791          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1792          fldcount = int(fldsecs/fldperiod) + 1
1793        and were modified.
1794    o autodiff: checkpoint_lev...
1795      - updated storing for bulk formulae (some arrays were missing)
1796      - added state for seaice package
1797      - synchronized with main branch
1798    o DIVA:
1799      Modif.s in
1800      - the_main_loop.F
1801      - the_model_main.F
1802      and added cost_final_restore.F cost_final_store.F
1803      o With these changes, it is possible to fully separate
1804        the first forward run to compute the cost function (mdthe_main_loop)
1805        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1806        into separate model executions.
1807        This enables better tuning of DIVA to given queue sizes.
1808      o Loss of cost function value in consecutive DIVA runs is
1809        fixed by storing to 'costfinal' file.
1810      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1811        beginning/end of adjoint integration is accounted for.
1812      The current changes apply to TAF-1.4.26.
1813      TAF has one remaining bug, requiring one manual change
1814      (see MITgcm manual).
1815    o cal: synchronized between MAIN and ecco-branch
1816    
1817    checkpoint48i_post
1818    o Changes to restore differentiability of code w.r.t. previous tag
1819      (mostly adding new routines to make list and replacing
1820      pressure by totPhiHyd).
1821    o Updated and merged grdchk package
1822      - has both ADM and TLM checks
1823      - works for single- and multi-proc.
1824      - output cleaned
1825      - worked successfully for parallel DIVA
1826    o genmake:
1827      - Adding -platform=SP4
1828      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1829    o Modif. for DIVA:
1830      ctrl_unpack should not be called in intermediate DIVA interval.
1831      (similar thing would apply for active files such as
1832      tbar, sbar, psbar, which should not be reinitialised;
1833      only relevant for ecco-branch)
1834    
1835    checkpoint48h_post
1836    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1837    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1838    o Added SEAICE_initialHEFF to pkg/seaice
1839    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1840    
1841    checkpoint48g_post
1842    --- EOS:
1843    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1844      store total Potential in totPhyHyd for diagnostics & EOS.
1845    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1846    --- Pressure/geopotential gradient:
1847    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1848    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1849      ( changes results of global_ocean_pressure )
1850    o NLFS + z-coord.: add eta*Rho' contribution.
1851    o accurate phiHyd when using interface-W at the middle between 2 centers
1852     ( changes results of ideal_2D_oce )
1853    o includes r* 2nd term in potential gradient.
1854    
1855    checkpoint48f_post
1856    Merging from release1_p12:
1857    o Modifications for using pkg/exf with pkg/seaice
1858      - improved description of the various forcing configurations
1859      - added basic radiation bulk formulae to pkg/exf
1860      - units/sign fix for evap computation in exf_getffields.F
1861      - updated verification/global_with_exf/results/output.txt
1862    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1863      (SBO) core products, including oceanic mass, center-of-mass,
1864      angular, and bottom pressure (see pkg/sbo/README.sbo).
1865    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1866      to avoid negative values in shallow regions.
1867      - updated verification/natl_box/results/output.txt
1868      - updated verification/lab_sea/results/output.txt
1869    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1870    o Added useSingleCpuIO option (see PARAMS.h).
1871    o Updated useSingleCpuIO option in mdsio_writefield.F to
1872      work with multi-field files, e.g., for single-file pickup.
1873    o pkg/seaice:
1874      - bug fix in growth.F: QNET for no shortwave case
1875      - added HeffFile for specifying initial sea-ice thickness
1876      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1877    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1878      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1879    o pkg/seaice:
1880      - adjoint-friendly modifications
1881      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1882    
1883    checkpoint48e_post
1884    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1885    o dynamics: change definition of computational domain & adapt mom_fluxform
1886      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1887    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1888        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1889        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1890        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1891        inverted_barometer solid-body.cs-32x32x1
1892      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1893    
1894    checkpoint48d_post
1895    o in preparation for r*:
1896     a) use pre-computed gradient of hydrostatic potential:
1897        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1898     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1899        => affects results of glob_oce_pressure (different truncation error)  
1900      update output.txt of ideal_2D_oce & global_ocean_pressure
1901    
1902    checkpoint48d_pre
1903    o in preparation for r*:
1904      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1905      pass the 2 comp. of the grad. as arguments to momentum S/R.
1906      but for the moment, only used if it does not change the results.
1907    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1908    
1909    checkpoint48c_post
1910    Modifications in treatment of initial flux forcing controls
1911    to avoid extra storing of flux fields.
1912    
1913    checkpoint48c_pre
1914    o Added tidal_basin_2d experiment (currently 1D!)
1915    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1916    
1917    checkpoint48b_post
1918    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1919     (modification to pressure gradient not yet implemented)
1920    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1921      (for U & V) that are used for vertical advection of momentum.
1922    
1923    checkpoint48a_post
1924    o In preparation for r*, use temp. array to compute vertical transport
1925       in flux-form momentum pkg. => change results of few test-exp.
1926      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1927                        lab_sea, natl_box & plume_on_slope
1928    
1929    checkpoint48
1930    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1931    
1932    checkpoint47j_post
1933    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1934    o moved adexch from forward_step to addummy_in_stepping
1935    o added exch in ctrl_map_...
1936    o aveFreq.=0. at end of cost_final to avoid overwrite in
1937      reverse checkpointing loop
1938    o Yet more changes in gmredi:
1939      * adgmredi_calc_tensor
1940        avoiding all recomputation of gmredi_slope_limit
1941      * adgmredi_x/y/rtransport
1942        added flag for excessive storing to avoid recomp. of
1943        u/v/rtans, dTdx/y/z
1944        -> this is not really necessary and very memory-consuming
1945      * adgmredi_slope_psi:
1946        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1947      * gmredi_slope_limit
1948        re-activated full calculation of taperfct for case 'ac02'
1949    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1950    
1951    checkpoint47i_post
1952    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1953    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1954      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1955    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1956    o gmredi: fix few bugs.
1957    
1958    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1959    This will be a good checkpoint to plug into the ecco-branch.
1960    o few modif.'s to get latest version adjointed
1961      (mainly kick out code in ini_linear_phisurf)
1962    o modif's to run adjoint with exactConserv
1963    o case GM_BOLUS_ADVEC should be cleaned
1964      S/R gmredi_slope_psi should be cleaned
1965    o verification/carbon now has exactConserv=.TRUE.
1966    
1967    checkpoint47g_post
1968    o time-average AIM output: becomes independent from statvars time-average
1969      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1970    o After TAF bug fix:
1971      Tested adjoint of gmredi package.
1972      Tests were done with checkpoint47 rather than with latest
1973      checkpoint47f_post since the latter is broken for the adjoint
1974      verification/carbon/ contains both ADM and TLM gradient checks.
1975    Here they are, before they get changed/lost/stolen.
1976    Mostly modif.'s to fix numerical sensitivities.
1977    Gradient checks OK for
1978    - GM_taper_scheme:
1979      * clipping
1980      * ac02
1981      * linear
1982      * glw91
1983      * dm95
1984      * ldd97
1985    - GMREDI_OPTIONS:
1986      * GM_VISBECK_VARIABLE_K
1987      * GM_NON_UNITY_DIAGONAL
1988      * GM_EXTRA_DIAGONAL
1989      * GM_BOLUS_ADVEC
1990    in conjunction with data.gmredi parameters to be checked in
1991    in a few minutes under verification/carbon/code/
1992    
1993    checkpoint47f_post
1994    Merging from release1_p10:
1995    o modifications for using pkg/exf with pkg/seaice
1996      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1997        and SEAICE_EXTERNAL_FLUXES
1998      - pkg/exf CPP options EXF_READ_EVAP and
1999        EXF_NO_BULK_COMPUTATIONS
2000      - usage examples are Experiments 8 and 9 in
2001        verification/lab_sea/README
2002      - verification/lab_sea default experiment now uses
2003        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2004    
2005    checkpoint47e_post
2006    o created a tag prior to creating a branch
2007    
2008    checkpoint47d_post
2009    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2010      at the bottom boundary had an erroneous half slip boundary condition
2011    o added bottom drag and no slip boundary condition capabilities to
2012      oceanic pressure coordinates code
2013    o added new verification experiment global_ocean_pressure, this experiment is
2014      also described in the tutorial section of the manual
2015    checkpoint47d_pre
2016    
2017    checkpoint47c_post
2018    o Added a verification experiment for a global cubed-sphere ocean run
2019      -  verification/global_ocean.cubed32x32x30
2020      -  uses pkg/therm_seaice and pkg/bulk_forcing
2021    
2022    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2023    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2024      when using P-coordinate; only implemented for atmospheric config.
2025    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2026      NOTES: requires option NONLIN_FRSURF to be "#define".
2027    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2028    
2029    checkpoint47b_post
2030    Merging from release1_p9:
2031    o pkg/seaice
2032      - removed GOTO's and added taf directives
2033      - double precision constants to reduce the g77 (Linux)
2034        to F77 (SGI) differences reported in release1_p8
2035    o tools/genmake
2036      - added SGI options
2037    o verification/testscript
2038      - updated to that of checkpoint47a_post
2039    o verification/global_ocean.90x40x15/input/eedata
2040      - modified for SGI f77 compatibility
2041    o verification/lab_sea
2042      - added description of sea-ice model
2043      - added missing matlab routines
2044      - added test of thermodynamics parallelization
2045    
2046    checkpoint47a_post
2047    o new pkg: aim_v23
2048     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2049       for now, keep the same surface forcing as before.
2050     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2051     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2052     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2053    o add diagnostic of surface correction term in monitor output
2054    
2055    o bulk_force and therm_seaice
2056    - Two packages:  bulk_force (Bulk forcing)
2057      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2058    - Earlier integration from Stephaine Dutkiewicz
2059      and Patrick Heimbach.
2060    - Two ifdef statements for compile time,
2061       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2062    
2063    checkpoint47
2064    differentiable version of checkpoint46n_post
2065    o bug fix in quasihydrostaticterms
2066    o * "clean" adjoint code (in terms of extensive recomputations)
2067        can now be obtained for all GMREDI options (i.e. for
2068        - GM_VISBECK_VARIABLE_K
2069        - GM_NON_UNITY_DIAGONAL
2070        - GM_EXTRA_DIAGONAL
2071        - GM_BOLUS_ADVEC )
2072      * However, wrong gradient check problem remains unsolved.
2073      * New CPP options have been introduced for different
2074        tapering schemes
2075    o external_fields_load now part of differentiation list
2076    o pressure needs multiple storing;
2077      would be nice to have store_pressure at beginning or
2078      end of forward_step, e.g. by having phiHyd global (5-dim.)
2079      (NB: pressure is needed for certain cases in find_rho,
2080      which is also invoked through convective_adjustment).
2081    o recomputations in find_rho for cases
2082     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2083    o #define ATMOSPHERIC_LOADING should be differentiable
2084    o ini_forcing shifted to begining of initialise_varia
2085    o Incorporating QNVS line search routines into MITgcm
2086      (this is separate code, and therefore not under pkg)
2087      lsopt/, optim/
2088    o Updated verification/carbon/
2089      - #define GM_VISBECK_VARIABLE_K
2090      - GM_taper_scheme    = 'ldd97'    
2091    
2092    checkpoint46n_post
2093    Merging from release1_p8:
2094    o verification/natl_box:
2095      updating new external_fields_load routine
2096    o New package: pkg/seaice
2097      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2098      The sea-ice code is based on Hibler (1979-1980).
2099      Two sea-ice dynamic solvers, ADI and LSR, are included.
2100      In addition to computing prognostic sea-ice variables and diagnosing
2101      the forcing/external data fields that drive the ocean model,
2102      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2103      The implied surface heat flux is then stored in variable
2104      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2105      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2106      non-local transport term.  Because this call precedes model
2107      thermodynamics, temperature under sea-ice may not be "exactly" at
2108      the freezing point by the time theta is dumped or time-averaged.
2109      N.B.: fairly large differences in accuracy occur across
2110            different platforms/compilers; comparison between
2111            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2112            generated output gives:
2113       T           S           U           V
2114      C D M    c        m  s        m  s        m  s        m  s
2115      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2116      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2117      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2118    
2119      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2120    o GAD:
2121      - generated new common blocks to account for call of
2122        same gad routines with differing traceridentities
2123        (needed to modify tracerIdentity indices in GAD.h)
2124      - generated separate common blocks for case useCubedSphereExchange
2125        (Department of Futurology)
2126      - parameter lists to gmredi_?transport: added tracerIdentity
2127      - added new key indices to tamc.h
2128    o external_fields_load:
2129      - added this routine to TAF list
2130      - needed to make some common blocks global and additional storing
2131        along the same lines as exf package (checkpoint_lev?_directives.h)
2132    o exf:
2133      updated external forcing package
2134      - bug fixes carried over from ecco-branch
2135        (missing OBCS_OPTIONS.h in two routines)
2136      - enable easy to use "no forcing".
2137      - added exf I/O for atmospheric loading
2138      - added exf I/O for runoff data
2139      - transfered scaling between exf <-> MITgcm to exf namelist
2140    o Adding new verification experiment global_with_exf.
2141      This verification experiment is almost identical to the
2142      global_ocean.90x40x15 experiment, except that it uses
2143      the exf (and cal) package instead of the
2144      external_fields_load routine (cf README file).
2145    
2146    checkpoint46m_post
2147    o modified testscript to return -- when there are no lines of "%MON" output
2148    o added new flag "quasiHydrostatic" for QH mode
2149      and new routine quasihydrostaticterms()
2150    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2151      New routine: mom_u_coriolis_nh()
2152    o fixed sign of non-hydrostatic metric terms in u and v equations.
2153      Depend on correct sign of gravitySign.
2154    o added work.pc* to .cvsignore in aim directories using ifc
2155    o introduced flag for controllin non-hydrostatic metric terms
2156    o removed gravitySign from PARM04
2157    o switched to g77/ifc from pgf77 in aim experiments
2158    
2159    checkpoint46l_post
2160    o made convective adjustment work with pressure coordinates:
2161     - changed the direction of k-loop in convective_adjustment.F for the
2162       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2163     - adjusted the reference pressure k-index in convective_adjustment.F
2164     - adjusted the convection condition in convect.F (in analogy to
2165       calc_ivdc.F)
2166     - convective_adjustment no longer computes anything on the halos
2167     - removed the warnings about negative salinity from find_rho.F and
2168       find_alpha.F; instead the new routine look_for_neg_salinity, called
2169       at the beginning of find_rho, find_alpha, and find_beta, does a
2170       check of the entire slice, if CPP-option
2171       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2172    checkpoint46l_pre
2173    
2174    checkpoint46k_post
2175    o fixed the verification/global_ocean.90x40x15 experiment:
2176     - new bathymetry (the world according to A., JMC, and M.)
2177     - new initial fields and forcing fields (*.bin files)
2178     - new POLY3.COEFFS (for the next release one should switch to a full
2179       equation of state: JMD95P or MDJWF)
2180     - fixed several errors and redundancies in the data file
2181     - experiment uses looped cells
2182     - added matlab directory with diagnostic scripts for plotting of output
2183    
2184    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2185     - read AIM physics parameters from a file (data.aimphys)
2186     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2187    
2188    checkpoint46j_post
2189    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2190    o move wVel computation at the end of the time step, in S/R integr_continuity
2191    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2192    o update timeave pkg for wVel diagnostic.
2193    checkpoint46j_pre
2194    
2195    checkpoint46i_post
2196    o Clean up AIM package (and keep the results unchanged):
2197      include CPP_OPTION and use IMPLICT NONE in all routines ;
2198      declare all the variables _RL ; use _d 0 for all numerical constants.
2199      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2200    
2201    checkpoint46h_post
2202    o cleaned up the use of rhoNil and rhoConst.
2203      - rhoNil should only appear in the LINEAR equation of state, everywhere
2204        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2205        and the dynamical equations are all divided by rhoConst
2206    o introduced new parameter rhoConstFresh, a reference density of fresh
2207      water, to remove the fresh water flux's dependence on rhoNil. The default
2208      value is 999.8 kg/m^3
2209    o cleanup up external_forcing.F and external_forcing_surf.F
2210      - can now be used by both OCEANIC and OCEANICP
2211    checkpoint46h_pre
2212    
2213     Added code to convert surface volume flux (fresh water) into
2214     a mass flux when using P coordinates in the ocean (OCEANICP).
2215     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2216    
2217    checkpoint46g_post
2218    o Include a new diagnostic variable phiHydLow for the ocean model
2219      - in z-coordinates, it is the bottom pressure anomaly
2220      - in p-coordinates, it is the sea surface elevation
2221      - in both cases, these variable have global drift, reflecting the mass
2222        drift in z-coordinates and the volume drift in p-coordinates
2223      - included time averaging for phiHydLow, be aware of the drift!
2224    o depth-dependent computation of Bo_surf for pressure coordinates
2225      in the ocean (buoyancyRelation='OCEANICP')
2226      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2227        Theta, Salinity, and Pressure in the parameter list. This routine is
2228        presently contained in find_rho.F. This routine does not give the
2229        correct density for 'POLY3', which would be a z-dependent reference
2230        density.
2231    o cleaned up find_rho
2232      - removed obsolete 'eqn' from the parameter list.
2233    o added two new verification experiments: gop and goz
2234      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2235    checkpoint46g_pre
2236    
2237    checkpoint46f_post
2238    o Enable tangent linear (forward mode) gradient checks:
2239      - extended active file handling to g_... files
2240      - added TANGENT_SIMULATION to theSimulationMode
2241      - extended grdchk package accordingly
2242    o added tangent linear setup in verification/carbon/code_ftl
2243    o added adjoint setup in verification/front_relax/code_ad
2244    
2245    checkpoint46e_post
2246    o Added new equation of state -> MDJWF
2247      - EOS of McDougall et al., 2002, JAOT, submitted
2248      - caveat: the equation of state is only valid for a smaller (more
2249        realistic?) range of values than JMD95P/Z and UNESCO
2250      - added masks to the calculation of pressure in store_pressure
2251      - added more check values for density in check_eos (ini_eos.F), some of
2252        the old check values are out of the range of the MDJWF-eos, so don't
2253        expect perfect matches for those
2254    checkpoint46e_pre
2255    
2256    checkpoint46d_post
2257    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2258      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2259      case of pressure coordinates. eosType='JMD95Z' in
2260      combination with buoyancyRelation='OCEANICP' now causes an error.
2261    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2262      in find_alpha/beta.
2263    checkpoint46d_pre
2264    
2265    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2266      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2267    
2268    checkpoint46c_post
2269    o Changes necessary for ocean in p-coordinates
2270     -  Added new buoyancy relation = 'OCEANICP'
2271     -  Added new parameters = gravitySign (this used to be contained inside
2272        the factor dRdZ which I added when we first switched to R coordinates).
2273     X GM/Redi is not compatible (yet)
2274     X bottom drag and no-slip need to be debugged.
2275    checkpoint46c_pre
2276    
2277    checkpoint46b_post
2278    o Added new equation of state -> JMD95Z and JMD95P
2279      - EOS of Jackett and McDougall, 1995, JAOT
2280      - moved all EOS parameters into EOS.h
2281      - new routines ini_eos.F, store_pressure.F
2282    o Added UNESCO EOS, but not recommended because it requires
2283      in-situ temperature (see JMD95)
2284    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2285      unesco.f to be used with POLY3
2286    checkpoint46b_pre
2287    
2288    checkpoint46a_post
2289    o Added (atmospheric) pressure loading
2290      - new field in FFIELDS.h, etc...
2291      - new cpp flag ATMOSPHERIC_LOADING
2292    o Changed hFacC to _hFacC in calc_phi_hyd.F
2293    o Added SHORTWAVE_HEATING to some files for consistency
2294    checkpoint46a_pre
2295    
2296    checkpoint46
2297    further merges from release1_p5
2298    o new ctrl package
2299      - adopted from ECCO environment to enable optimization
2300      - added Eliassen Palm fluxes to controls
2301    o added Eliassen Palm flux controls to gradient check package
2302    o cost package
2303      - Compatible with new ctrl package
2304      - added Eliassen Palm cost hooks
2305      - modif's of existing cost functions
2306    o Adjoint-related bug fixes in kpp:
2307      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2308      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2309    o autodiff package
2310      - flow directives:
2311        + new for S/R do_the_model_io
2312        + enhanced for S/R checkpoint
2313        + new gmredi.flow
2314      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2315        disable adcommon.h/g_common.h by default.
2316      - fixed problem for adjoint of global_max
2317    o modified verification/carbon/
2318    o New setup for adjoint of global_ocean
2319    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2320    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2321    o incorporated hooks for sponge layer code (external_forcing.F)
2322    
2323    checkpoint45d_post
2324    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2325    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2326      (affects plume_on_slope "cg2d" output)
2327    o add new parameter deltaTfreesurf for free-surface time stepping
2328    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2329    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2330    o change phiMin in exp1 (to agree with documentation)
2331    o add new flags:
2332     - T,S forcing inside/outside Adams-Bashforth
2333     - turn off temp,salt advection and/or forcing
2334     - for each tracer, define internal flag for multiDimAdvection & A-B
2335    o monitor: change definition of KE to check conservation of Energy
2336    
2337    checkpoint45c_post
2338    o Removed f90 comments ("!")
2339    o Modified initialisations to enable exf package for MITgcm
2340      (without invoking ECCO_PACKAGE).
2341    o modifications to gradient check package (Martin Losch)
2342      - enable centered differences
2343      - modified format of standard output
2344    
2345    checkpoint45b_post
2346    o cleaned exchange calls in cg2d
2347    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2348    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2349      to configure barotropic setup (Martin Losch)
2350    o moved some initialisations within bi,bj loop in dynamics
2351      (TAF flow dependency)
2352    o in initialise_varia, moved call packages_init_variables
2353      before convective_adjustment_init
2354      (corresponding adjustment of TAF tape initialisation).
2355    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2356    
2357    checkpoint45a_post
2358    o compute Rho over the whole domain (extend iMin,jMin indices)
2359    o specific exchange for X-slice domain (case Ny=1)
2360    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2361    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2362    
2363    checkpoint44h_post = checkpoint45
2364    o Fix to restore differentiability:
2365      place at which packages_init_variables is called in
2366      initialise_varia is crucial for reverse control flow.
2367    o modifications in GMRedi to enable stable adjoint
2368      (corresponding modif's in thermodynamics, dynamics)
2369    o added missing hook for sponge layer code in external_forcing
2370    o modified test cost functions
2371    o storing in gad_advection (plus removal of write(0,*)!
2372    o missing headers TR1.h added in convective_adjustment routines
2373    o errorMessageUnit set non-equal zero in eeboot
2374      (conflict on some platforms, e.g. IBM SP3)
2375    o modified carbon verif.
2376    
2377    checkpoint44h_pre
2378    o vertical grid option: allow to put the Interface at the middle between
2379      2 cell-centers ; replace delZ in pkg/kpp by drF.
2380    o GM Advective form: Tracers are advected using the residual transport (=
2381      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2382    
2383    checkpoint44g_post
2384    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2385      results) ; ifdef missing in thermodynamics.F
2386    
2387    checkpoint44f_pre,checkpoint44f_post
2388    o added PTRACERS package
2389      This allows an arbitrary number of passive tracers to be integrated
2390      forward simultaneously with the dynamicaly model.
2391      + Implemented so far:
2392        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2393        - I/O and checkpointing
2394        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2395      + Not implemented so far:
2396        - KPP
2397        - OBCS
2398      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2399        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2400        line in data.pkg.
2401      + This package is disabled by default since it increases storage.
2402    
2403    
2404    o testscript: added -cleanup option
2405    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2406                 b) enable to filter 2D fields.
2407    
2408    checkpoint44e_pre,post
2409    o re-wrote convective adjustment to use pre-calculated weights
2410      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2411      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2412      Original calls to convect() still in place.
2413    
2414    chkpt44d_pre,post
2415    o added missing EXCLUDE_MONITOR flags
2416    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2417      (incompatible typ in MIN/MAX expressions caused problems
2418      on IBM SP3)
2419    o in genmake added variable MAKEDEPEND
2420      plus resetting for case SunOS
2421    o added timer_stats.c routine for IBM SP3
2422    o removed variables in dynamics
2423    !!! I forgot to create tag chkpt44d_pre !!!
2424    !!! But chkpt44d_pre = chkpt44c_post    !!!
2425    
2426    o real fresh water flux implemented with non-linear free-surface.
2427    
2428    chkpt44c_pre,post
2429    o few fix (mask in shap_s2, EmPmR in external_field_load,
2430      USE_NATURAL_BCS in solve_for_P);
2431    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2432    
2433    checkpoint44b_pre/_post
2434    o merge of relevant stuff from the ecco-branch:
2435      - genmake: removed $S64 overwrite for case SunOS
2436      - pkg/exf: update and corrections for field swapping and obcs
2437      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2438                  harmonized between ECCO and MITgcm
2439      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2440                      updated checkpointing_lev... lists for obcs
2441      - model/src: minor changes in forward_step, plot_field
2442                   added directive for divided adjoint in the_main_loop
2443      - pkg/mdsio: added mdsio_gl_slice
2444    
2445    o check parameters & config (chkpt44a_pre,post)
2446    o OBC and NonLin_FrSurf.
2447    
2448    checkpoint44
2449    o fix bug in mom_vi_del2uv
2450    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2451    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2452    o update AIM experiments (NCEP input files)
2453    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2454    o added some stuff for AD
2455    
2456    checkpoint43
2457    o added two new advection tests
2458    o added global 4x4 degree ocean test
2459    o added test of H&S94 with free surface on cube
2460    o some final mods for gradient check, adjoint,...
2461    
2462    checkpoint42
2463      Fixed AD-related problems:
2464    o Store directives up-to-date with re-arranged Adams-Bashforth
2465      (mainly thermodynamics.F)
2466    o New store directives for multi-dim. advection schemes
2467      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2468      * new common block and key passkey
2469      (mainly gad_advection.F)
2470    o Modified store directives for split of dynamics/thermodynamics
2471      for the case ALLOW_KPP
2472    o Cleaned argument list for timestep_tracer.F
2473    
2474    checkpoint41
2475    o re-formatted/added comments in prologues of key subroutines
2476      to work with protex
2477    
2478    checkpoint40
2479    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2480    o added FLT (floats) package from Arne along with demo. experiment
2481    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2482      implementation of forward-in-time forcing terms
2483    o more mods for non-linear free-surface including new variable
2484    o modified multi-dim method to work on cube
2485    o bug fix in KPP (from DM)
2486    
2487    checkpoint40pre9
2488    o added DST advection schemes
2489    o fix MPI bug on SGI's
2490    o modifications for non-linear free-surface
2491    o fixed conditionals for fixed flow/passive tracer only mode
2492    o added tension/strain form of stress tensor
2493    o changes to commenting of arguments for TAF/TAMC
2494    o added/updated many matlab scripts
2495    o added multi-dimensional advection method for tracers
2496      
2497    checkpoint40pre8
2498    o new package rw/
2499      Added method for dumping intermediate local arrays:
2500      mdsio_writetile - same as mdsio_writefield except works from inside
2501                        bi,bj loop
2502      mdsio_writelocal - same as mdsio_writetile except works for local
2503                         arrays
2504      write_local_r? - higher-level wrapper for mdsio_writelocal
2505      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2506      Example given at end of mom_vecinv.F that dumps some local arrays.
2507    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2508      control flux-form versus vector invariant code.
2509      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2510      or genmake -DISABLE ...
2511    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2512      (additional storing is now needed for case vecinv;
2513      currently nothing implemented to switch this storing off
2514      in case fluxform is used since no CPP flag available).
2515    
2516    checkpoint40pre7
2517    o bug fix in dynamics.F
2518      calc_viscosity called before k=1,Nr loop.
2519    o added some #ifdef's ALLOW_PASSIVE_TRACER
2520    o cleaned initialisations in ctrl_map_ini
2521      related to TAF
2522    
2523    checkpoint40pre6
2524    o split dynamics into thermodynamics & dynamics
2525    o corresponding split of calc_diffusivity into
2526      calc_diffusivity, calc_viscosity
2527      (kpp_calc_diff, kpp_calc_visc).
2528    o Added diffkr, kapgm to control variables
2529    o bug fix in gmredi_slope_limit for ldd97
2530    
2531    checkpoint40pre5
2532    o proper initialization of Adams-Bashforth time stepping
2533      + uses forward step for very first step of model (iter=0)
2534    o re-generated *all* output since almost all output is modified by this
2535      change (sorry but we've been putting this one off for about 2 years)
2536      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2537        *not* regenerated since they are already out of date and I don't
2538        want to create the impression that they are suddenly working.
2539    o removed KAP stuff for DEC's
2540    o modified/added many .cvsignore files in */code and */input
2541    o added new expt "solid-body.cs-32x32x1"
2542      + this uses an alternative form of ini_curvilinear_grid.F which
2543        is not necessarily any better than the current one...
2544    
2545    checkpoint40pre4
2546    o added re-initialisations of utrans,vtrans,rtrans in
2547      calc_common_factors which are crucial for TAF.
2548    o extended iMin,jMin range for calc_common_factors,
2549      calc_diffusivity
2550    o added option ALLOW_PASSIVE_TRACER
2551    o a few minor updates and fixes
2552    
2553    checkpoint40pre3
2554    o created calc_gtr1.F for gad package
2555    o split the_main_loop and re-introduced forward_step
2556    o some recomputations of nIter0 for TAMC
2557    
2558    checkpoint40pre2
2559    o Updated to latest branch of AJA, JMC
2560    o Added gradient check package
2561    o Added routines for passive tracer handling
2562    o Added carbon sequestration sensitivity experiment
2563    
2564    checkpoint39
2565     o Modifications and fixes to support TAMC
2566       (mainly missing or wrong directives)
2567     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2568       in addummy_in_stepping
2569     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2570     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2571     o Included following packages:
2572       cal: calendar
2573       exf: external forcing
2574       ecco: essential routines to control use of cal, exf
2575             (NB: this is not the full ECCO environment)
2576     o disabled some packages by default in genmake
2577    
2578    checkpoint38
2579     o see notes_c37_adj.txt
2580     o corrected wrong layer index in external_forcing_t
2581     o replaced the_main_loop/forward_step by the_main_loop
2582     o removed forceoutput from write_state
2583       (replaced criteria for initial/final state)
2584     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2585    
2586    checkpoint37
2587     o mdsio.F routine split and packaged in pkg/mdsio
2588       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2589        used unless genmake -disable=mdsio)
2590     o allow a more precise surface-geopotential gradient for the atmosphere
2591       taking into account the change in space of Alpha (=1/rho) at the surface.
2592     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2593       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2594     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2595       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2596       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2597     o Time-Average diagnostics defined as a pseudo package "timeave".
2598     o pickup files : old pickup (before c35) did not work with new code (c35
2599       and after) unless activating 2 commented lines in initialise-varia.
2600     o Non-Hydrostatic pickup file Pb fixed.
2601     o bug with Rigid-lid version (since c35) fixed.  
2602    
2603    checkpoint36
2604     o implement Crank-Nickelson barotropic time-stepping
2605     o recover Time-Average diagnostics
2606     o fix Pb in checkpoint (PR#19)
2607     o AIM become a standard package ; clean unused CPP_kees
2608    
2609    checkpoint35
2610     o subtantial rewrite of dynamics.f
2611     o allows staggered time-stepping
2612     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2613     o added bottom drag (linear + quadratic)
2614    
2615    checkpoint34
2616     o Modified exchange routines for correct reverse simulation.
2617     o Added verification output to comply with bug fix in impldiff.F
2618       as of c33 (exp2, natl_box).
2619     o Corrected store directives in dynamics.F
2620     o Corrected array boundaries in impldiff.F
2621     o Corrected array dimensions in gmredi.
2622       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2623     o Added routine GLOBAL_SUM_INT to global_sum.F
2624     o Added mdsio_gl.F for ECCO purposes.
2625    
2626    checkpoint33
2627     o Fixed bug in lower BC in impldiff.F
2628     o Fixed confusion about units of forcing arrays in FFIELDS.h
2629       namely Fu,Fv,Qnet,Qsw,EmPmR:
2630       - Removed verification/natl_box/code/external_fields_scale.F
2631         (did not differ from that in model/src)
2632       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2633         (see FFIELDS.h for description)
2634       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2635         kpp_calc.F and kpp_transport_t.F
2636       - Removed model/src/external_fields_scale.F and calls to it
2637       - verification/natl_box uses flux data with "atmospheric" sign so
2638         a special version of external_fields_load.F is used to
2639         change the data as it's read in. This way, the arrays
2640         have the right units and signs at all times tha a user could
2641         possibly use them.
2642     o Corrected genmake to delete a temporary file during configuration
2643    
2644    checkpoint32
2645     o Scaling of forcing fields moved from external_forcing.F to
2646       external_fields_scale.F, called directly after loading fields.
2647     o Surface relaxation terms added to surface tendency fields in
2648       extra subroutine.
2649     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2650       fields.
2651     o Changes in GMRedi to comply with packaging structure.
2652     o Modifications and bug fixes in KPP package.
2653     o Verification experiment for KPP added (verification/nat_box/)
2654    
2655    checkpoint31
2656     o Packages interface brought in line with defined standard
2657       -> new routines packages_...F
2658       -> changes in initialise_fixed.F, initialise_varia.F
2659       -> enables initialisation interface for ECCO package
2660     o Rescaling of external forcing fields immediately after read
2661       (removed from external_forcing.F)
2662       -> new: surface_fields_scale.F
2663       -> affects ini_foorcing.F, external_fields_load.F
2664     o Computation of surface tendencies before tendency updates.
2665       -> new: external_forcing_surf.F
2666     o Change of variable names useGMRedi, useKPP, useECCO
2667     o Further changes in dynamics.F, impldiff.F for TAMC
2668     o Tested for experiments 0, 2, 4.
2669       - not yet tested for GMRedi.
2670       - not yet tested for KPP.
2671    
2672    checkpoint30
2673     o Updates for OBCs
2674     o New experiment for test OBCs (internal_wave)
2675     o New output.txt in verification/exp4/results/
2676     o Updates for KPP: calculation of viscosity corrected, new variables
2677       kpp_dumpFreq and kpp_taveFreq
2678     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2679       and entry for T90 in genmake
2680    
2681    checkpoint29
2682     o packaged KPP and GM/Redi
2683    
2684    checkpoint28
2685     o Corrected initialization of hFacMin for difference vertical coordinates
2686     o Modified calculation of partial cell thickness to more robust algorithm
2687     o config_summary.F: replaced write_1D_... by write_0D_...
2688       read_write.F: added subroutines write_0D_...
2689     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2690       included some initialisations required for TAMC.
2691     o routine calc_isoslopes: modified sqrt computation to make it
2692       differentiable for zero argument.
2693     o routines dynamics, impldiff:
2694       included store directives and tape key computations required for TAMC.
2695     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2696    
2697    checkpoint27
2698     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2699       formulation works properly with variable resolution.
2700     o restructured the calling tree between the_model_main() and dynamics()
2701     o split initialise() into initialise_fixed() and initialise_varia()
2702     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2703       in new routine ini_psurf()
2704    
2705    checkpoint26
2706     o moved some #ifdef in optional routines to encompass everything
2707       except the argument declarations. This was using up some memory.
2708     o fixed macros like _ADT to work with both versions of Linux cpp
2709     o cleaned up some unused and uninitialized variables
2710       (helps when debugging with strict compile options)
2711     o split up CPP_EEOPTIONS.h into options and macros
2712       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2713     o patch for 2 processor JAM mode
2714    
2715    checkpoint25
2716     o updates for OBCs and NH
2717     o dramatically reduced memory usage
2718     o added "JAM" routines for use on Artic network
2719     o parameterization of convection by implicit vertical diffusion
2720     o added a diagnostic of convective index
2721     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2722       (this is was partly for OBCs and NH but also in anticipation of
2723        an explicit free-surface option)
2724     o initial state input files for U and V
2725    
2726    checkpoint24
2727     o Removed some spurious "REAL"s
2728     o Updated KPP to latest version from JPL
2729     o Added a COS(latitude) in horizontal viscosity
2730    
2731  checkpoint23  checkpoint23
2732   o Added del^4 diffusion for salt and temperature   o Added del^4 diffusion for salt and temperature
2733   o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)   o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)

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