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revision 1.127 by adcroft, Thu Jan 30 18:35:42 2003 UTC revision 1.578 by jmc, Sat Nov 5 01:10:21 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
8    o remove some unused variables (reduces number of compiler warnings)
9    
10    checkpoint57w_post
11    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
12                 fix the singleCpuIO RS version of MDSWRITEFIELD
13       and add a WARNING if using globalFiles=T with multi-processors.
14    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
15      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
16    o tracer advection scheme:
17      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
18       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
19       was not very convenient).
20      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
21       (further tests needed for the implicit DST & Flux-Limiter schemes).
22    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
23      and sRef for convenience, handy, when you want to initialize
24      ptracers in a large domain with a constant non-zero value. Also,
25      untangle ptracers_init.F a little.
26    
27    checkpoint57v_post
28    o change dome exp. to use variable viscosity in side-drag terms.
29    o remove all the files from the cfc_offline test since they are now
30      incorporated into tutorial_cfc_offline which has been producing
31      identical results for a few days of testing
32    o add new parameter: sideDragFactor to enable half-slip-side BC
33      and change side-drag S/R to use viscosity from mom_calc_visc
34      (can switch back by setting sideDragFactor=0.); affects results at
35      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
36       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
37    o vorticity & strain are now computed without masking, to account for
38      no-slip-side BC in variable viscosity calculation ; mask is applied
39      anyway later on, before computing advection/coriolis terms.
40    o modify exp4 to test new obcs support for reading from external files
41      and for passive tracers
42    o fix behavior of ptracers_monitor when monitor output is written to a
43      netcdf-file; still not independent of monitor.F (writes in the same
44      file).
45    o change default value of tRef (put a uniform, meaningful value for ocean
46      & atmos) and initialize sRef (was missing, as Martin mentioned).
47    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
48      to be proportional to enstrophy dissipation length.  Thus,
49       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
50      This is now consistent with Smagorinsky and with the manual.
51    
52    checkpoint57u_post
53    o OBCS and PTRACERS: add open boundary support for passive tracers
54      - either use homogenous (pseudo) v.Neumann conditions or prescribe
55        OB-values from file; this is not different from the way theta and salinity
56        are treated
57      - however, Orlanski-radiation conditions are not supported, and the model
58        will stop if you use pTracers and Orlanski at the same time.
59      - beefed up the rountine obcs_external_fields_load: now only those open
60        boundary values are overwritten with values from files for which there
61        are really files, otherwise the OB-fields remain untouched. This makes
62        it possible to use different OBs at different ends of the domain (as
63        with EXF)
64    o reduce number of exch calls in shap_filt (s2).
65    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
66      truncation level) 4/5 MLAdjust test results (11&12 digits match).
67    
68    checkpoint57t_post
69    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
70    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
71      same truncation, independent of the face number: affects affects several
72      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
73    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
74      note that biharmonic viscosity + no-slip was not tested in any experiment.
75    o fix bug in non-linear free-surf side-drag ; generate new output for
76      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
77    o make mnc honor the writeBinaryPrec flag for most kinds of output
78    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
79    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
80      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
81    o add brackets in multi-terms sum to get same truncation, independent of
82      the face number (manage to get exactly same value of gU,gV at the cs-edge)
83      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
84    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
85      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
86      a maximum grid-scale Reynolds number.  Also, changes all length calculations
87      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
88      Suggested values of viscosity parameters found in mom_calc_visc.
89      Many new viscosity diagnostics available.
90    
91    checkpoint57s_post
92    o Add clearing-house for viscosity calculations, mom_calc_visc and
93      correct numerous bugs in LeithD and Smagorinsky discretizations.  
94      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
95      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
96      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
97      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
98      The Strain-Tension form is now called with useStrainTensonVisc=.true.
99      ViscAhStrain and viscAhTension are now retired.
100    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
101    o In response to JMC's bug report, genmake2 now ignores any soft-links
102      that it finds in the *current* directory when searching for files.
103      Soft-links found in any other source directories will still work as
104      they did before.
105    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
106      a C routine to unlimit the stack size
107    o mnc-ify pkg/aim snapshot vars
108    o mnc-ify pkg/land as requested by Daniel
109    o various changes to mnc including:
110      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
111      - output can now be grouped so that all files within a group
112          change the ITER portion of their names in lock-step together
113      - can now read ("global") PER-FACE (in addition to PER-TILE) files
114          and works with both EXCH1 and EXCH2 (but needs more testing)
115      - writing works for all verification test cases w/ g77 on Linux
116    
117    checkpoint57r_post
118    o make MNC variable initialization happen earlier
119    o add diagnostics for (almost) each term of the momentum Eq.
120    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
121    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
122    o remove MINIMAL_TAVE_OUTPUT option ;
123      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
124    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
125      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
126    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
127    o add time-dependent SST, SSS control
128    o cost terms in ecco/ modularized (new cost_generic.F)
129    o cost_averages routines are modularized (new cost_averagesgeneric.F)
130    o new infrastructure for seaice model vs. obs misfits in seaice/
131      * driver from the_main_loop.F is seaice_cost_driver.F
132      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
133      * gradient check in Exp. 6a of natl_box_adjoint/
134    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
135      (see README file)
136    
137    checkpoint57q_post
138    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
139    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
140      - bug was reported by Jean-Michel and Ian Fenty
141    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
142      update exp. cpl_aim+ocn output.
143    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
144      Needed for high-res. runs with large global files
145      to be able to limit tapelev size
146    o Changed some tests for adjoint:
147      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
148      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
149      * global_ocean.90x40x15/ back to default 3-level checkpointing
150    o Modifications to enable scripted COMMON to MODULE conversion
151      * verification/OpenAD/code/ has necessary scripts and description;
152      * converts, compiles and runs successfully;
153    
154    checkpoint57p_post
155    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
156    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
157      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
158    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
159    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
160      (was already the case for dissipation with mom_vecinv,
161       and also the case for grad.PhiHyd when staggered-timeStep)
162      This will allow to put dissipation out-off the AB time-stepping.
163     Unfortunately, affects truncation error. Update output of exp. that "fails"
164      (cg2d matching number) and leave the others for later: front_relax(10),
165      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
166      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
167    
168    checkpoint57o_post
169    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
170      (2) its ready to be documented during the 20050801 DocFest
171    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
172      for ideal_2D_oce and lab_sea on linux_ia32_g77
173    o set to #undef CTRL_SET_OLD_MAXCVARS_30
174      in global1x1_tot/code_seaice_adj to access indices 32, 33
175      (worth another tag)
176    
177    checkpoint57n_post
178    o adding precip control xx_precip 32
179    o adding swflux control xx_swflux 33
180    o Replacing 10 forcing penalty cost routines by 1 generic.
181    o Implementing partitioning in time-mean and variable adjustment
182      for atmos. state.
183    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
184    o in natl_box_adjoint:
185      * updated exp 1 to 10
186        (but does not have time-mean vs. variable split results yet)
187    o updated global1x1/*_seaice_adj/
188      to incorporate latest changes
189    o enable useSingleCpuIO for mdsio vector routines
190      (applies in particular to tapelev I/O)
191    o removed inefficient K-loop in all active_file*control*.F
192    
193    checkpoint57m_post
194    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
195      and advect_cs (use EXCH-2 and standard cs-32 grid files).
196    o pkg/exch2: filling of face-corner halo regions is optional
197      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
198    
199    checkpoint57l_post
200     tag before updating tutorials (pre-release-2)
201    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
202       for output and interpolation of input fields onto model grid)
203    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
204       Affects results of exp. rotating_tank ; update output.txt.
205    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
206          and taking the square quantity and/or using a fraction-weight field.
207    o fix aim_diagnostics_init.F mate numbers.
208    o add mnc output capability to diagnostics/diagstat and update
209      our cvsignore files for the ACSII output generated
210    
211    checkpoint57k_post
212    o lab_sea now uses diagnostics package and provides a suite of
213      new EXF diagnostics output.
214    
215    checkpoint57j_post
216    o exf
217      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
218        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
219        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
220      * extended diagnostics output
221        - now includes all EXF variables
222        - hs, hl moved to common block
223        - separate S/R for diagnostics, called after ctrl vector is added
224        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
225        - EXFqnet contains true Qnet (i.e. includes qsw)
226      * updated verif. lab_sea, global_with_exf
227      * Rearranging hflux (exf_mapfields -> exf_getforcing)
228        to ensure that diagnostics sees a true EXFqnet
229    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
230    o diagnostics pkg: change pointers so that 1 diagnostic can be used
231      several times with different frequencies.
232    o mnc-ify the thsice package as requested by Daniel Enderton
233      - the monitor--MNC output needs work
234      - many attributes need to be added (most are currently blank)
235    o mnc-ify theaim_v23 package as requested by Daniel Enderton
236      - many attributes need to be added (most are currently blank)
237    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
238    o add Sadourny like discretization to the 4th.O vorticity advection scheme
239    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
240      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
241         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
242    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
243     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
244    
245    checkpoint57i_post
246    o Diagnostics package was changed: diagnostic allocation is now deactivated
247      by setting an empty file name in the namelist (used to be by setting 0 frequency)
248    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
249      add 1rst Order upwind vertical Shear.
250    o add a quick fix for A/B checkpointing in OFFLINE mode
251    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
252      end-run around the C/Fortran linking horror in eesup/src/timers.F
253    o added pkg/runclock: allows user to terminate run based on wall clock
254    o added non-hydrostatic scaling parameter: nh_am2
255    o pkg/my82: futile attempt to make results compiler-independent by adding
256      some "_d 0", etc. no effect.
257    o for mnc output, fill the 'T' coordinate var with myTime and create a
258      separate 'iter' variable for iteration count
259    o pkg/diagnostics:
260      add new capability: output of Global/Regional & per-level statistics ;
261      tested against monitor output (including land & thSIce) on various exp.
262    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
263    
264    checkpoint57h_done
265      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
266      data.diagnostics, data.gchem, data.ptracers) is done.
267    
268    o pkg/diagnostics: prepare for Global/Regional statistics.
269      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
270    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
271      and rename it: DIFFERENT_MULTIPLE
272    
273    checkpoint57h_post
274    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
275    o pkg/diagnostics: change output frequency, now in seconds (instead
276      of Nb of iterations). This requires to change data.diagnostics.
277    checkpoint57h_pre
278    
279    o in mnc, let the user create the output dir if both mnc_outdir_date
280      and mnc_outdir_num are false
281    o add fflags() to pkg/diagnostics which allows one to specify, on a
282      per-file basis, the file precision [default behavior is unchanged]
283    o added diagnostics to pkg/kpp, including computation of mixed layer
284      depth based on a temperature/density criterion
285    o updated verification/natl_box to test the new pkg/kpp diagnostics
286    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
287    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
288    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
289      not mnc -- this mistake was found by JMC and is now corrected
290    
291    checkpoint57g_post
292    o add Adams-Bashforth 3rd Order time stepping:
293      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
294      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
295    checkpoint57g_pre
296    
297    o make lambda[Theta,Salt]ClimRelax spatially varying
298      (default remains spatially uniform constant based on tau)
299    o added new control variables
300      * init. uVel, vVel, etanN
301      * lambda[Theta,Salt]ClimRelax
302    o separate masks used for ctrl_pack/unpack 'from write_grid' output
303      (suggested by G. Forget)
304    
305    checkpoint57f_post
306    o add parameter "baseTime" = model base time = time at iteration zero
307      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
308      account for baseTime shift
309    o move Coriolis arrays from PARAMS.h to GRID.h
310    checkpoint57f_pre
311    
312    o mnc-ifying the seaice package
313    o introduced an alternative length scale calculation for use in the limiting
314      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
315    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
316    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
317      as well as grad(vort3).  Made it compatible with both approximate form
318      for the cubed sphere and full form of these gradients.  Added flag
319      useFullLeith to select between approximate and full form.  
320    o add "d0" in getcon.F to reduce differences between compilers/platforms
321      update output.txt of exp. fizhi-gridalt-hs
322    o change port_rand funtion to allow to set the seed.
323    o fix obscure MNC bug involving conversion between reals and integers
324      - it caused no problems with certain (eg. gcc, ifc) compilers but the
325        new version is now more standards-compliant
326    o adjoint-related modifications
327      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
328      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
329      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
330    
331    checkpoint57e_post
332    o Adding eddy stress controls a la Ferreira et al.
333    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
334    
335    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
336      update output.txt of exp. fizhi-gridalt-hs
337    o add more "Z" dimensions and associated coordinate vars to MNC
338    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
339    o parameter calendarDumps: when set, approximate months (30-31 days) and years
340      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
341      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
342      months and years.  Requires pkg/cal.
343    o diagnostics: add pickup functionality
344      - off by default for backwards compatibility
345      - current version only uses MDSIO -- MNC will be added
346    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
347    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
348    
349    checkpoint57d_post
350    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
351    o modify verification/ideal_2D_oce so that it tests the creation of mnc
352      output from the diagnostics package
353    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
354    o make genmake2 more portable by using ".$FS" instead of ".f" for more
355      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
356    o add coordinate variables to the MNC output from the diagnostics package
357    o change MNC-flags default value: true when useMNC=TRUE
358    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
359      the ability (off by default) to read the grid information using MNC
360    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
361    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
362    o do snap-shot diagnostics at the middle of the time-interval (instead of
363      at the end).
364    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
365      new test for AIM with thSIce + slab-ocean
366    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
367    o move state variable diagnostics to the beginning of the time step ;
368      (note: still needs some work specially for snap-shot diagnostics)
369      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
370    
371    checkpoint57c_post
372    o Change testing option (-ieee) to get closer agreement between g77 & ifort
373    o generate new output.txt files on faulks with g77 & the new -ieee option
374    checkpoint57c_pre
375    
376    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
377      update output.txt of exp. global_ocean.90x40x15
378    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
379      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
380    o add saltFlux(+File) forcing capability with periodicExternalForcing
381    o allow to use pkg diagnostics for GM-Redi & ThSIce output
382    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
383    o improvements for the MNC output from DIAGNOSTICS:
384      - correct handling of the unlimitied dimension
385      - all dims now have associated coordinate variables
386      - variables located at U, V, and Corner ("Z") points are now written
387        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
388        *all* data points are output
389    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
390    o added pkg/seaice/seaice_monitor.F
391    o mdsio_readfield.F can now read files visible only to master MPI process.
392    o pkg/seaice: some test code for ice-modified ocean stress
393    o exf_getffields interpolation defaults to bilinear for all scalar forcing
394      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
395      spurious negative numbers for precipitation and humidity.  Will cause
396      some small numerical differences for integrations using pkg/exf/exf_interp.F.
397    o pkg/ctrl/
398      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
399        May be enabled via doPackDiag
400      *  introduce z-scaling of
401         + gradient (doZscalePack) and
402         + control (doZscaleUnpack)
403    o pkg/mdsio/
404      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
405      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
406    
407    checkpoint57b_post
408    o simplify options in diagnostics_fill arguments (remove weird combinations)
409    o fix MNC coordinate variables so that they now contain per-face index
410      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
411      general, EXCH2 grids are only aligned to a "local" coordinate system
412    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
413    o Implement instantaneous output within pkg diagnostics:
414      setting a negative frequency in data.diagnostics produces
415     "snap-shot" output (as opposed to time-average if freq > 0)
416    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
417      NOTE: change ptracer diagnostics name: use 2 characters to work with
418            more than 9 tracers. Add also diagnostics of advect & diffus flux.
419    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
420      becomes the coordinate variable for the 'T' dimension
421    o add CF-style coordinate variables to MNC
422      - just a first cut:  numbers are meaningless on the cubesphere and
423        missing along the T axis but otherwise it works!
424    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
425    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
426    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
427      this is based directly on what the model compute, so that the content of
428      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
429    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
430    o clean up build options files for SunOS, in particular
431      - remove -traditional from xmakedepend
432      - change -xarch=v9 to -xarch=native for f77
433      - restore use of make (not gmake)
434      - add CC=gcc if using g77
435    o changes per discussion of AM, JMC, & EH3 today:
436      - move redundant "grid" variables out of "state" -- in preparation of
437        creating proper CF-style coordinate variables and in recognition
438        that any/all grid variables can be easily copied (eg. w/NCO) from
439        the grid files into any of the other NetCDF files
440      - *always* output grid variables with MDSIO (this will eventually be
441        changed)
442      - output MNC grid file if useMNC is true
443    o every instance of _END_MASTER() has been found and replaced with
444      _END_MASTER( myThid ) in order to satisfy certain picky Sun
445      preprocessors
446    o re-arrange diagnostics pkg initialisation:
447     - allow each package to extend the available diagnostics list
448     - add some checking and fix small problems (multi-threaded, ...)
449     - new S/R diagnostics_fill (replace fill_diagnostics):
450       look through the short list of active diag. (instead of the long list)
451       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
452    
453    checkpoint57a_post
454    o this set of changes restores TAMC compatibility
455      tested for global_ocean.90x40x15 adjoint on trough
456      (what a pain)
457    
458    checkpoint57a_pre
459    o some modifs in tools/build_options for sunos
460    o call ctrl_pack for ctrl at end for optimcycle=0
461    
462    checkpoint57
463    o add horizontal bi-harmonic viscosity for vertical velocity
464      - new parameter viscA4W (defaults to viscA4)
465      - affects only non-hydrostatic code
466      - to be done: no-slip lateral boundary conditions
467    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
468    o implement Implicit Vertical advection for pTracers
469    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
470      (implemented also for implicit vertical diffusion & advection)
471    o OBCS: extend application of tracer open boundary conditions
472      to a strip beyond the boundary of width Olx/Oly
473    o add call monitor to TAF set of required calls (flow directives)
474      and include in natl_box_adjoint
475    o untangle a few ifdefs related to cost, ctrl, autodiff
476      untangel a few ALLOW_ECCO_OPTIMIZATION
477    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
478      (theta2, salt2 in ecco_cost_weights)
479    
480    checkpoint56c_post
481    o OBCS as control variables
482      - update ctrl_ad_diff.list, obcs_ad_diff.list
483      - remove balance of obcs controls from default
484      - fix index bug nobcs in ctrl_init
485      - fix dummy fields filen in ctrl_pack
486      - add dummy weights for obcs
487    o lsopt: comment out fort.94 output
488    o optim:
489      - remove unnecessary header files
490      - adjusted namelists
491      - add xerbla.F to Makefile
492    o exf:
493      - multiple modifications of exf_check_range
494      - unit change in exf_init_runoff from [m/year] to [m/s]
495    o mdsio:
496      - i/o-vector change debugLevel from debLevA to debLevB
497    
498    checkpoint56b_post
499    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
500      is called from DO_THE_MODEL_IO
501      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
502      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
503      - clean up PTRACERS_WRITE_TIMEAVE a little
504    o add another verification experiment that tests both the cfc-pkg and
505      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
506      reactive tendencies treated inline with regular timestepping
507    o testreport previously did a lousy job of comparing small numbers, so
508      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
509      implemented in the little c-progam tmp_cmpnum.c which is embedded in
510      testreport.
511    o ptracers_monitor: bug fix for MPI
512    
513    checkpoint56a_post
514    o GCHEM: finish reorganizating the package
515      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
516        (introduces another 3D-array for each passive tracer, but only if
517        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
518        gchemTendency is not needed because the timestep is done separately)
519      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
520      - GCHEM is now---more or less cleanly---separate from PTRACERS
521      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
522        so clear to me how that should be done in a general way.
523    o CFC: improve formatting of output in CFC_ATMOS
524    o PTRACERS:
525      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
526        that ALL experiments with ptracers enable can be checked. This makes
527        GCHEM_MONITOR obsolete.
528      - include a runtime parameter PTRACERS_monitorFreq that defaults to
529        monitorFreq
530      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
531    o add PTRACERS (PTR0[1-5]) to testreport output
532    o exf_check_range:
533      * default changed to .TRUE.
534      * will check values for niter0 if debLevA, every timestep if debLevB
535      * STOP in exf_check_range if 'out of range'
536      * range chosen generous to allow for potential extema
537      TBD: a version with stricter range
538           permitted range would be runtime parameters
539    o GMredi:
540      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
541      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
542      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
543    o GCHEM:
544      - move call to GCHEM_FORCING_SEP, so that it is now called before
545        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
546      - introduced a useGCHEM runtime flag and applied it everywhere.
547      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
548        this flag is now only visible within GCHEM-pkg routines.
549      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
550        be replaced by a 3D array that is computed before thermodynamics; for
551        this, the tracer ID iTracer had to be included into the parameter list
552        of ptracers_forcing
553      - set up forward_step to call gchem_forcing, that will replace
554        gchem_forcing_int in ptracers_forcing
555      - cleaning up
556    o small cleaning of exch2: remove files that are also in eesupp/src
557    
558    checkpoint56
559    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
560    o mnc: cleanup "full" files--fixes out-of-memory problem
561    o ECCO-GODAE
562      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
563      * fully merged and updated from SIO code
564        windstress sign change affects
565        - exf_inscal_[u/v]stress
566        - sign of xx_tau[u/v] adjustments
567        - signs in cost_scat
568      * ctrl_get_gen: avoid update of tau[u/v] for first few days
569      * natl_box_adjoint updated and compressed
570      * 2-level checkpoint switch added
571        (tested in EXP. 1 of natl_box_adjoint)
572      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
573    o SVD
574      * first complete, non-hacked version for SVD calculations
575      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
576        performed via direct access files admtlm_vector.it????
577        (via ctrl_[un]pack)
578      * optimcycle is used for ARPACK iteration counter
579        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
580      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
581        and add linear transforms where necessary
582      * controls are initial/final SST, SSS (can be extended; need to check
583        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
584    o mdsio: filename info to both stderr, stdout
585    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
586      from sign change
587    
588    checkpoint55j_post
589    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
590      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
591    o add consistent build directories and .cvsignore files to verification
592    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
593    o make all subroutines 30 or less characters in length for certain older
594      compilers to work (a thorough search only turns up two routines in
595      pkg/ptracers)
596    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
597      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
598    
599    checkpoint55i_post
600    o change arrays for total vertical diffusivity (2.D if explicit,
601      3.D if implicit) ; each ptracer uses its own background value.
602    o added mnc/NetCDF output capability to ocn_compon_interf
603      - added bits to verification/cpl_aim+ocn so that it can run on
604        ITRDA and other clusters without the mpirun "-wd" option
605    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
606      configuration
607    o give MNC the ability to create additional files rather than
608      exceeding a specified file size limit "MNC_MAX_FILESIZE"
609      - the default is just less than 2GB which is a practical limit
610        on many systems
611    o Compute the non-local term using either KPP vertical diffusivity (=default)
612       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
613    
614    checkpoint55h_post
615    o add verification test "vermix"
616    o remove all the *_ioinc flags and replace with the single global
617      outputTypesInclusive flag
618    o allow to set a vertical profile of vertical diffusivity for T & S
619    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
620    o useMNC moved from data.mnc to data.pkg
621    
622    checkpoint55g_post
623    o Renaming carbon AD experiments to comply with testreport conventions
624    o Updating adjoint of Held-Suarez hs94.1x64x5
625    o Fixing directives for non-ECCO forward_step, after ECCO directives
626      have been fixed to avoid recomp. of do_oceanic_phys
627      Works well for global_ocean.90x40x15,
628      but recomp. issue remains for carbon
629    o Updating adjoint output for natl_box_adjoint after
630      pkg/ecco has been modified (see taga c55d_post)
631    
632    checkpoint55f_post
633    o rename to timeave_init_fixed
634    
635    checkpoint55e_post
636    o some delicate re-shuffle of store directives to avoid one
637      extra call of do_oceanic_physics
638      affects ecco_the_main_loop.F, do_oceanic_physics.F
639      checkpoint_lev1_directives.h
640    o NB: this may break global_ocean adjoint temporarily,
641      but it is clear how to fix it. Will do later, need this now.
642    
643    checkpoint55d_post
644    o ECCO specific cost function terms (up-to-date with 1x1 runs)
645    o ecco_cost_weights is modified to 1x1 runs
646    o modifs to allow observations to be read in as
647      single file or yearly files
648    o enable to read exf forcing fields as either
649      single file or yearly files (flag useExfYearlyFields)
650    checkpoint55d_pre
651    
652    o switch between 2-level and 3-level checkpointing
653    o add ability of MNC to write local and "partial" (eg. 2D slices where
654      the full 3D field is never actually stored) arrays to NetCDF files
655      with the correct (that is, the complete multi-dimensional) set of
656      array indicies
657      - used in mom_vecinv() to write the diagFreq output
658      - tested (demonstrated) in verification/aim.5l_cs
659    o further mnc-ification
660      - add verification/lab_sea to the list with mnc setups
661      - fix undefined mnc v-names in cd_code
662      - add kpp to mnc output (both snapshot and timeave)
663    o non-hydrostatic code
664      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
665        in calc_gw.F
666      - defaults to viscAh
667      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
668        friction or Leith) in non-hydrostatic mode, as long as there is
669        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
670    o pkg/cost
671      extend simple cost functions to treat time mean quantities
672      (T,U,V) via cost_accumulate_state from cost_tile
673    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
674        be 2 times larger than the minimum size the advection scheme requires.
675        now get a perfect conservation of salt in advect_cs test-exp (updated)
676    o GGL90 (Gaspar's TKE mixed layer)
677      - add horizontal diffusion of TKE, requires exchanges in
678        do_fields_blocking_exchanges, horizontal diffusivity is zero by
679        default. In OPA there is no horizontal diffusion of TKE but the
680        mixing coefficients are computed from a horizontal average of TKE of
681        6 points or so. I think that diffusion has a little more physical
682        justification.
683      - clean up ggl90_calc in the hope of reducing memory usage (this hope
684        was in vain)
685      - mask tke-variable in ggl90_init
686    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
687    o fix biharmonic diffusion on CS-grid.
688    o more obcs stuff
689      - added obcs_external_fields_load as an alternative to the EXF-pkg option
690        for reading boundary values. This routine is called from
691        obcs_prescribe_read
692      - updated obcs_check
693      - changed sponge layer relaxation parameter units for days to seconds
694      - turned off sponge layer by default
695      - changed argument list of OBCS_CALC to myTime+deltaTclock
696      - fixed about 35 bugs in obcs_external_fields_load
697    
698    checkpoint55c_post
699    o obcs stuff
700      - new runtime flags useOBCSprescribe, useOBCSbalance
701      - re-arranged obcs_calc
702      - moved exf_getobcs to obcs_prescibe_read
703        obcs_prescibe_read is called after ORLANSKI stuff
704        and independent of it (executable can contain all).
705      - updated obcs_check
706      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
707        These may be necessary only if tangential velocities are
708        prescribed at OB, not sure, needs testing.
709    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
710      which simplifies the calls and passes the ifc check-bounds test
711    
712    checkpoint55b_post
713    o add a 2D scalar, Z location, exchange_2 routine.
714    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
715      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
716      affects advect_cs results (for the wrong reason): update output.txt
717    o use a more standard discretization for biharmonic viscosity ;
718     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
719      affects results of dome set-up: update output.txt
720    o fix gad_advection.F (CubedSphere part), back to version 1.23
721    o fix bug in mom_vi_del2uv.F (CubedSphere part).
722    
723    checkpoint55a_post
724    o merged code to
725      * prescribe/read time-dependent open boundaries
726        (works in conjunction with exf, cal)
727      * sponge layer code for open boundaries
728      * each boundary N/S/E/W now has its own CPP option
729        (healthy for the adjoint)
730    
731    checkpoint55
732    o up-to-date adjoint of previous breaks
733      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
734      - global_ocean_ebm: adjoint still needs fix (TLM ok)
735      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
736      - carbon: * remove tr1-related adjoint verification
737                * add ptracer as control variable
738    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
739      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
740    
741    checkpoint54f_post
742    o in verification/carbin/ remove experiment related to
743      ALLOW_PASSIVE_TRACER (array tr1 etc)
744      code_ad/ input_ad/ results_ad
745    
746    o add two new packages
747      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
748        + subject to optimization (memory)
749      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
750        + subject to reordering (many GOTOs in the original code)
751        + so far opps is called for every (i,j) point, and then operates in
752          the vertical; one may want to reorder the scheme in order operate in
753          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
754          fields)
755    o overhaul of IO so that we now have flags for MDSIO and/or MNC
756      - all verification tests compile and run with linux_ia32_g77
757      - defaults are compatible with current input files--nothing
758        should change if you were not previously using MNC
759      - MNC output has been added in numerous places (eg. timeave)
760        but there are still a few writes not yet do-able with MNC
761        (this is in progress)
762      - flags now allow for either/or/both use of MDSIO and MNC and
763        documentation will soon follow
764      - numerous small formatting cleanups for ProTeX
765    o add version info (via BUILD_INFO.h) to MNC and stdout
766    
767    checkpoint54e_post
768    o add two new packages
769      - pp81 (Packanowski and Philander, 1981), Richardson number and
770        stratification dependent mixing
771      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
772      - these scheme operate in a similar manner as KPP (without ghat, of
773        course), however there is only one diffusivity that is used for both
774        temperature and salinity (and passive tracers)ç
775    o add offline package
776    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
777      provided by Stephanie Dutkiewicz
778    o genmake2: add ability to search for C compilers and cleanup test output
779      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
780    
781    checkpoint54d_post
782    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
783    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
784      leading to additional shift by 5 days each year of integration
785       (i.e. leading to considerable offset over the years)
786    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
787    o start with no AB and no initial filtering (staggerTimeStep):
788      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
789    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
790      (external loading & cpl import/export stay in forward_step.F)
791    o update coupling interface to work with new staggerTimeStep
792    o change MDSIO ptracers_pickup.
793    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
794    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
795    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
796    
797    checkpoint54c_post
798    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
799      this affects (truncation error) output.txt of test-exp:
800       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
801    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
802    o change Qnet to always be the net heat flux, (+upward).
803      affects (truncation error) output of natl_box exp.: updated
804    o define the max number of passive tracers in PTRACERS_SIZE.h
805    o start to test mnc routinely in exp0
806    o add sea-ice loading (sIceLoad) as a new forcing field.
807    
808    checkpoint54b_post
809    o add testreport "-j JOBS" option for parallel builds (tested and pretty
810       impressive on Altix and Opteron systems)
811    o diagnostics can now write NetCDF files through the mnc package
812    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
813    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
814    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
815      affects (truncation error) output of lab_sea & natl_box exp.: updated
816    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
817    
818    checkpoint54a_post
819    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
820    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
821    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
822    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
823      + internal_wave (shift in writing cg2d_ini_res)
824    checkpoint54a_pre
825    
826    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
827      - modified verification/lab_sea and natl_box_adjoint accordingly
828    
829    checkpoint54
830    checkpoint53g_post
831    o prepare splitting of thermodynamics: store convect.counter in common block
832    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
833      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
834    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
835    o new parameter "nShapS": allow to treat differently S from T (nShapT)
836    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
837    o restore adjointability
838    
839    checkpoint53f_post
840    o modifications that affect AIM experiment results (update output.txt):
841      - no advection of S at top interface Nr (pkg/generic_advdiff)
842      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
843    o AIM pkg:
844      - include stability function into surf.Flux derivative relative to Tsurf
845      - calculate clear-sky radiation & surface temp. change (for diagnostics)
846    
847    checkpoint53e_post
848    o merged cylindrical coord configuration
849    o added rotating_tank experiment
850    checkpoint53e_pre
851    
852    checkpoint53d_post
853    o faulks upgraded: re-generate output.txt that have changed:
854       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
855    o Added Bryan and Lewis, 1979, vertical diffusivity profile
856    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
857    o added Sadourny discretization of Coriolis
858      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
859      - re-enabled use of omega3 (useAbsVorticity)
860    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
861      vector-invariant equations
862      - note: does *NOT* yet use same variable visc. for no-slip BC's.
863    o recoded the lateral boundary conditions for non-hydrostatic w, this time
864      hopefully without new bugs
865      - still to do: biharmonic friction for non-hydrostatic w
866    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
867    o regenerated output for global_ocean_ebm (using -ieee)
868    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
869      of mom_common/
870      - simple re-arrangement of instructions within computing loop
871    checkpoint53d_pre
872    
873    checkpoint53c_post
874    o new version of coupler for AIM+thSIce and Ocean models
875     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
876     - land: change Evaporation of snow
877     - aim with thSIce: fix bug in snow-precip.
878    o changes to calc_gw.F
879     - bug fix for w^2 term near the bottom boundary
880     - (hopefully) improve the lateral slip boundary condtions for use with
881        partial/looped cells
882      - because the bug fix changes two verification experiments anyway (exp5
883        and plume on slope), change the lateral boundary condition from half slip
884        to the value of no_slip_sides
885    o ebm package wasnt quite up to the parallel task. Fixed that.
886    o Adjoint of EBM package + verification
887      * TLM OK
888      * ADM not sufficient accuracy yet (needs further testing)
889    
890    checkpoint53b_post
891    o Commiting new energy balance model to repository
892      * package is pkg/ebm
893      * verif. is verification/global_ocean_ebm
894      * references are in ebm_driver.F
895    C      * X. Wang, P. Stone and J. Marotzke, 1999:
896    C        Global thermohaline circulation. Part I:
897    C        Sensitivity to atmospheric moisture transport.
898    C        J. Climate 12(1), 71-82
899    C      * X. Wang, P. Stone and J. Marotzke, 1999:
900    C        Global thermohaline circulation. Part II:
901    C        Sensitivity with interactive transport.
902    C        J. Climate 12(1), 83-91
903    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
904    C        Destabilization of the thermohaline circulation
905    C        by atmospheric eddy transports.
906    C        J. Climate 7(12), 1870-1882
907    o Will need long integration testing.
908    checkpoint53b_pre
909    
910    o created pkg/mom_common in preparation for variable viscosity code
911    o renamed and split ini_mnc_io
912    o pkg/land: only liquid water can diffuse or run-off
913    o AIM using land: soil wetness availability account for snow
914    o added printMapIncludesZeros to EEPARMS namelist
915    
916    checkpoint53a_post
917    o restore TAMC compatiility for exf_constants.h
918      (no usage of _d in .h)
919    o Additional storing in KPP in an attempt to fix
920      TAMC problem with adjoint of KPP code.
921      (no success...)
922      Identical code works fine with TAF.
923    o Fixed verification/natl_box_adjoint experiments.
924      Initial conditions for Experiments 4 and 5 are now
925      set to "SEAICE_initialHEFF=0", which is more reasonable,
926      and hence gives results closer to that of Experiment 2.
927      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
928    
929    checkpoint53
930    o stable checkpoint with up to date adjoint
931      TLM tests only run for 1st grdchk at the moment. Its unclear if
932      this is a code problem or a problem with resetting code for g_
933      variables that is being autogenerated wrong.
934      Otherwise:
935       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
936       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
937         are both still in chaos following their security messes.
938    
939    checkpoint52n_post
940    o various build (mostly genmake2) changes including:
941      - ability to build/run more easily within Cygwin and MacOS X
942      - more complicated Makefiles with a stronger dependence on Gnu Make
943    o pkg/seaice modifications
944      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
945        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
946        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
947      - changed proxy for geostrophic velocity and updated
948        verification/lab_sea/results/* accordingly
949      - removed ADI dynamic solver from pkg/seaice
950      - replaced all occurrences of 1/CSTICE or 1/CSUICE
951        they caused a segmentation fault under certain circumstances
952      - removed unused field WATR
953    o bug fix in exf-package:
954      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
955         now reflect that.
956    o small fixes in the cal-package:
957      - set reference date to first of January for the 'model'-calendar
958      - failing of cal_CheckDate in cal_FullDate now actually results in a
959        warning
960    o small modifications in exf-package to increase flexibility:
961      - change climtempfreeze from a constant to a runtime parameter that
962        is specified in data.exf_clim (default = -1.9)
963      - introduce runtime parameter windstressmax (default = 2.0) that is
964        specified in data.exf
965    o fix in pkg/thsice:
966      - update Evap (Tsf changes) to be consistent with Latent heat flux
967      - maintain snow precipitation unchanged (even if Tsf >=0).
968     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
969    
970    checkpoint52m_post
971    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
972      this does not change any of the results, because myIter=0 in swfrac always
973      lead to jwtype=2 (the default anyway), but the call makes little sense
974      as a default
975    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
976    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
977      atmospheric model (AIM) to use it ; add a "slab ocean" component.
978    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
979    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
980    o extending useSingleCpuIO option to work with new exch2 I/O format
981      - old-style, missing-tile I/O is still accessible by defining CPP
982        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
983    o monitor package can write to NetCDF files and/or STDOUT
984    o fix re-definition bug in MNC_GRID_INIT_ALL()
985    o doc/api_reference added
986      - a framework for building an API Reference Manual using all
987        the "protex" comments embedded in the code
988      - see pkg/generic_advdiff, pkg/mnc for examples
989    o MNC:
990      - make myThid the last argument for all subroutines
991      - new default for the grid files: NO halos
992      - add useMNC and other run-time flags
993      - separate per-file-group handling of the unlimited dimension
994      - early initialization of MNC w/ flags read at the eeboot stage
995        and lookup tables set in initialize_fixed
996      - write all MNC output to a freshly-created directory
997    o thermodynamics sea-ice (thsice) is now tested with testreport.
998    o test exp. advect_cs: use the standard cs32 grid ; update output.
999    o Added functionality to grdchk:
1000      pick global i,j,k position (or nearest wet) where to perform check.
1001    
1002    checkpoint52l_post
1003    o new land formulation:
1004      a) use ground enthalpy as prognostic variable to ensure exact
1005         energy conservation.
1006      b) account for water temperature and for latent heat of freezing
1007         in all processes (rain, run-off, ground storage)
1008      c) compute surface and ground temperature implicitly.
1009    o aim_v23 modification for new land model:
1010      a) Treat separately land / ocean / sea-ice surface fluxes
1011         to allow implicit computation of land & sea-ice surface temp.
1012      b) add snow precipitation.
1013    checkpoint52l_pre
1014    
1015    o fix problem (when 1 tile is empty) in min/max monitor.
1016    o fix bug in timeAve (u,vZetatave in common block)
1017    o no restoring terms under ice for pkg/seaice
1018    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1019    o bug fix for pkg/seaice pickups
1020    o change MNC call locations and add coordinate attributes
1021    o mask vorticity at the corner ; affects global_ocean.cs output
1022    o fix ini_curvilinear_grid ; test CS experiments with mpi
1023    o aim.5l_cs: modify sea-ice fraction input file ; update output
1024    o exf: Adding simple range check routine for exf fields after read
1025    
1026    checkpoint52k_post
1027    o removed top-level directory "diags"
1028      - we migrated these functions to pkg/timeave a long time ago
1029    o fixed bug introduced in pkg/monitor
1030    o accuracy ctrlprec = 32 insuffient for gradient checks using
1031      averaged fields (I/O via cost_averages)
1032      -> use ctrl.h in active_file*.F to control I/O precision.
1033    o paramter list of CALL ADTHE_MAIN_LOOP
1034    o added initial do_the_model_io to ecco
1035    o set all ...Freq to zero after cost_final
1036      taveFreq, dumpFreq, pChkptFreq
1037    o MAIN and ECCO differentiability restored
1038    
1039    checkpoint52j_post
1040    o fix nchklev in tamc.h for global_ocean...
1041    o Bringing flow and store directives up-to-date
1042    o Really weird thing!
1043      call do_the_model_io from the_main_loop with parameters
1044      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1045      TAF places a faulty re-call of initialise_varia
1046      after cost_final call which should not be there!
1047    checkpoint52j_pre
1048    
1049    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1050      error messages
1051    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1052    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1053      debug output
1054    o modfied mdsio_writefield.F to handle non-global files under exch2
1055    o update AIM Cubed-Sphere exp (aim.5l_cs):
1056      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1057    o update AIM Equatorial Channel exp:
1058      use standard aim_v23 pkg and change the SST fields to be more realistic.
1059    o globalFile now works with exch2
1060    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1061      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1062    o limit timeave output for hi-res integrations
1063    
1064    checkpoint52i_post
1065    o removed CPP_EEOPTIONS.h from verification/*/code
1066    o updated the tiling for global_ocean_pressure
1067    checkpoint52i_pre
1068    
1069    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1070      the old pkg/aim).
1071    
1072    checkpoint52h_pre
1073    o shortened offending lines in exch2_send_rx?.template
1074    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1075    o genmake2: add build & execute test for NetCDF code
1076    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1077      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1078    o added useSingleCPUIO flag to monitor.F and mon_out.F
1079    o added temporary hack for sea-ice dynamics on the cube:
1080      metric terms are ignored and it is assumed that
1081      there is no sea-ice on cube faces 1, 2, 4, and 5.
1082    
1083    checkpoint52f_post
1084    o added exch2 cube routines to pkg/exch2
1085    o modified hs94.cs-32x32x5 to use it
1086    o added new grid files to hs94.cs-32x32x5
1087    checkpoint52f_pre
1088    
1089    checkpoint52e_post
1090    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1091      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1092    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1093      to work with implicit vertical advection and AB ;
1094    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1095    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1096     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1097    checkpoint52e_pre
1098    
1099    o fix bug in impldiff when Nr=1 or Nr=2.
1100    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1101    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1102    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1103      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1104    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1105    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1106    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1107    
1108    checkpoint52d_post
1109    o re-tiled many expts to allow comparison in multi-processor mode
1110      - updated output accordingly
1111      - changed hs94.128x64x5 to use intial T from file rather than use the
1112        random number generator
1113    o add infrastructure in model routines for fizhi and gridalt packages
1114    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1115    o changes to permit hi-res, cubed-sphere, configuration
1116      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1117      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1118      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1119        of surface winds for the cube
1120      (A verification experiment, based on global_ocean.cs32x15, but with
1121       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1122       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1123       complete with example surface forcing files and matlab scripts to look
1124       at the output and compare it with that of global_ocean.cs32x15.)
1125    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1126       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1127       to conform to the common rule.
1128    o check-in the first version of the coupler + interfaces for multi-components
1129       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1130       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1131       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1132       - ocean and atmos. share the same horizontal grid (no interpolation).
1133       - exchanges between component and coupler is done in forward_step
1134    o new verification experiment, cpl_aim+ocn:
1135       coupled ocean - AIM atmosphere on cs32 grid.
1136    
1137    checkpoint52d_pre
1138    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1139    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1140    
1141    checkpoint52c_post
1142    o Fixing OPTIONS files for use of exf:
1143      - ALLOW_ECCO not needed
1144      - ECCO_CPPOPTIONS.h should not be included from
1145        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1146        as has been the case in the past
1147      - All cal/exf related options are currently set in
1148        single header file. Should remain so until we
1149        agree on a consistent new policy.
1150    o Removed all CPP options for cal package.
1151      cal has no more CPP options.
1152    o modified STOREs in GAD_ADVECTION
1153    o corrected key comp. for passkey
1154    
1155    checkpoint52b_post
1156    o new version: "thsice" of thermodynamic sea-ice pkg:
1157     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1158     - modify fluxes but do not change theta directly;
1159     - light cleaning of bulk_force pkg (still needed with thsice).
1160     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1161       + output_thsice.txt to test thsice & bulk_force pkgs.
1162    o put back grid & coriolis monitor output.
1163    checkpoint52b_pre
1164    
1165    o call "do_the_model_io" at the beginning (=> dump initial state)
1166    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1167    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1168      (need info on NUMBER_OF_PTRACERS)
1169    o missing PTRACERS headers in some routines
1170    o default tamc.h in pkg/autodiff supposed to crash
1171      to ensure proper customization
1172    
1173    checkpoint52a_post
1174    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1175      - moved surfaceTendencyTice from pkg/seaice to main code
1176      - subroutine FREEZE_SURFACE now limits only surface temperature
1177        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1178        => new output.txt for global_ocean.cs32x15 & global_with_exf
1179      - keep the old version of FREEZE for backward compatibility;
1180        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1181      - corresponding modifs for TAF directives
1182    o added surface flux output variables to TIMEAVE_STATVARS
1183    o time-averaged output for pkg/ptracers
1184    o fix problem with ECCO-related divided adjoint
1185      snapshot file was missing some ad-variables,
1186      but no warning issued by TAF
1187    
1188    checkpoint52a_pre
1189    o some bug fixes for #undef REAL4_IS_SLOW
1190    
1191    checkpoint52 = ecco_c52_e35
1192    o after testing adjoints of checkpoint51u_post
1193    
1194    checkpoint51u_post
1195    o this is the post-merge tag of the ecco-branch
1196      (needs another clean checkout and re-testing)
1197    o various natl_box_adjoint configs and results
1198      but no input fields
1199    o obcs adjoint not yet merged!
1200    o adding ECCO global 1x1 and 2x2 degree configs
1201    o updated/extended some store directives for seaice
1202    o pkg/ecco now containes ecco-specific part of cost function
1203    o top level routines the_main_loop, forward_step
1204      supersede those in model/src/
1205      previous input data.cost now in data.ecco
1206      (new namelist ecco_cost_nml)
1207    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1208    
1209    checkpoint51t_post
1210    o this is the pre-merge tag of the ecco-branch
1211    
1212    checkpoint51s_post
1213    o cleanup: removed various obsolete #define-s
1214    o pkg/grdchk
1215      - renamed 'ph-grd 3' to 'grad-res'
1216      - merged from ecco-branch
1217        (remaining bug fixes for obcs gradient checks)
1218      - additional high-precision output for testreport
1219        (grep for 'precision_grdchk_result')
1220    
1221    checkpoint51r_post
1222    o cleaned up or removed CPP_OPTIONS.h files
1223    o updated results for some of the tests to reflect the new
1224      optfiles (-ieee: -O0 instead of -O3)
1225    
1226    checkpoint51q_post
1227    o cd_code:
1228      - moved cd_scheme.F -> cd_code_scheme.F
1229      - separate read_checkpoint from cd_code_ini_vars.F
1230      - separated cd_code part from write_checkpoint
1231      - updated AD_SOURCE, generated .flow
1232      - added CD_CODE_VARS.h to the_main_loop
1233      - Moving cd_code specific store dir.s to pkg/cd_code
1234    o ctrl package totally restructured
1235      - pack/unpack now optional and decoupled from
1236        xx_/adxx_ I/O
1237      - ctrl_pack/unpack cleaned
1238        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1239      - confined inclusion of AD_CONFIG.h to where necessary.
1240    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1241    
1242    checkpoint51p_post
1243    o create initial cd_code package
1244      - WARNING: the initialization of fields within packages
1245        is broken because INI_FIELDS (where READ_CHECKPOINT is
1246        called) is called *before* PACKAGES_INIT_VARIABLES.
1247        This seems to be backwards since
1248        1) its important to initially zero the entire field including
1249           the "halo" region
1250        2) zeroing needs to be done *before* reading pickup info
1251           and the pickup call might or might not happen in any
1252           particular run
1253      - this needs an overhaul for R2
1254    o cleanup verification/*/code/GMREDI_OPTIONS.h
1255    o cleanup testreport
1256    
1257    checkpoint51o_post
1258    o bringing AD-related verif's up to date with genmake2
1259      - carbon/
1260      - global_ocean.90x40x15/
1261      - hs.94.1x64x5/
1262      - (front_relax/ )
1263    o (more) consistent directory structure for AD-related verif.'s
1264    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1265    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1266    o bug fix in find_alpha.F for MDJWF:
1267      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1268        change rho -> rho-rhoConst
1269      - replace call find_rho to find_rhonum
1270    o initialisation of rFlx extended to full array (required by TAF)
1271      and shifted to thermodynamics
1272    o removed PTRACERS.h in ptracers routine
1273    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1274    o Correcting initialisations for fVerU, fVerV.
1275    o helping TAF to recognize dependency on kUp for
1276      fVerU, fVerV
1277    o Replacing delZ by delR in pkg/ctrl/
1278    checkpoint51o_pre
1279    
1280    o undid all of cp51 pending some cleanups and discussion
1281    o added the [#include "AD_CONFIG.h"] statement to all files that need
1282       it for adjoint/tl #defines
1283     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1284     o removed tools/genmake since it no longer works
1285    
1286    checkpoint51n_post
1287    o modifications to make FREEZE flux visible to pkg/kpp
1288      - moved surfaceTendencyTice from pkg/seaice to main code
1289      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1290      - subroutine FREEZE now limits only surface temperature
1291        (this means new output.txt for global_ocean.90x40x15,
1292         global_ocean.cs32x15, and global_with_exf)
1293    o added surface flux output variables to TIMEAVE_STATVARS
1294    
1295    checkpoint51n_pre
1296    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1297    o added [#include "AD_CONFIG.h"] to all files that use the following
1298      defines:
1299      - ALLOW_ADJOINT_RUN
1300      - ALLOW_TANGENTLINEAR_RUN
1301      - ALLOW_ECCO_OPTIMIZATION
1302    
1303    checkpoint51m_post
1304    o incorporating changes to get TAMC/TAF working in genmake2
1305      - added new TAMC/TAF targets to the Makefile
1306      - various cleanups related to package handling
1307      - these changes should have no impact on the forward model
1308    
1309    checkpoint51l_post
1310    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1311     - faster algorithm for cal_addtime.F
1312     - higher precision arithmetic, where needed
1313     - pkg/exf *startdate variables changed from calendar date to
1314       model integration time
1315    
1316    checkpoint51l_pre
1317    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1318    o enable to apply restoring on S & T only in a latitude band.
1319    o update output (external_forcing_surf modif. change truncation errors)
1320       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1321    
1322    checkpoint51k_post
1323    o change default to: useNHMTerms=.FALSE.
1324     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1325       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1326     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1327        exp1, ideal_2D_oce
1328     - change data file of oceanic exp (leave the results unchanged for now)
1329       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1330    o set gravitySign automatically according to the vertical coordinate used
1331      (and change sign: back to "logical" value: +1 when R increases downward)
1332    o added an include barrier to the default CPP_OPTIONS.h and
1333      removed the #include "PACKAGES_CONFIG.h" from it
1334    o fix a bug in mom_fluxform (from chk51j_post)
1335    
1336    checkpoint51j_post
1337    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1338    o adjusted some flow directives (dynamics, thermodynamics)
1339    o added cubed-sphere case to test cost function
1340    o heckpoint_lev?_directives.h now include
1341      pkg-specific directives, whenever those are enabled.
1342    o Moving pkg-specific flow directives to corresponding pkg
1343      Moving pkg-specific differentiation list to corresponding pkg
1344      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1345      ---> conventions are
1346           - pkg_ad.flow
1347           - pkg_ad_diff.list
1348           - pkg_ad_check_lev?_dir.h
1349    
1350    checkpoint51i_post
1351    o merge of the branch-genmake2
1352      - knowingly breaks the older genmake
1353      - automatic generation of all ALLOW_${PKG_NAME} defines
1354      - new testreport supersedes older testscript
1355    o large number of package inclusion and header cleanups
1356    checkpoint51i_pre
1357    
1358    o new output for adjoin of global ocean vector invariant
1359    o fix for checkpoint of thermodynamic seaice and bulk_force
1360    o Steph gchem various cleanups
1361    
1362    checkpoint 51h_pre
1363    o fixed some single quotes
1364    o modify gchem pkg to be more versatile
1365    o modifications to clean up dic pkg
1366    o add pkg/cfc
1367    
1368    checkpoint51g_post
1369    o provide links for ARPACK and ADM*TLM
1370    o start removing verification/vero/
1371    o update AD-related stuff
1372      (in particular some IF-statements in model/src/ routines)
1373    o adding to verification/global_ocean.90x40x15/ adjoint of
1374      vector invariant setup
1375    
1376    checkpoint51f_post
1377    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1378    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1379      of tracer Green's fucntions for ocean inversion project.
1380    
1381    checkpoint51f_pre
1382    o Added on-the-fly spatial interpolation capability
1383        "USE_EXF_INTERPOLATION" to pkg/exf.
1384      - This is a temporary Cartesian-grid hack until
1385        the super-duper ESMF coupler becomes available.
1386      - See verification/global_with_exf/README for usage example.
1387      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1388        flags and modified pkg/seaice accordingly.
1389    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1390        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1391        non-local transport term.
1392    
1393    checkpoint51e_post
1394    o pkg/mom_vecinv:
1395      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1396      - add time-ave diagnostic of vorticity advection.
1397    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1398    o atmospheric geopotential: - include water vapor effect;
1399                                - use p^kappa in p* scaling.
1400    o land pkg: read initial state from files.
1401    o AIM : add stratospheric drag in the upper level
1402    
1403    checkpoint51d_post
1404    o change function ILNBLNK (=> last non-blank char.) to return zero
1405      (instead of the string length) when the string. char is empty
1406    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1407    o modif's to restore TAMC compatibility
1408      - avoid "_d" constructs in PARAMETER declarations
1409      - avoid interrupting lines by comment lines
1410    o Use cluster local disks for purely local I/O
1411      vs. globally visible disks needed for ctrl stuff
1412      (merged from ecco-branch)
1413      - new active_file_loc... and mdsio_..._loc routines
1414      - affected packages: autodiff, ctrl, grdchk, mdsio
1415    
1416    checkpoint51c_post
1417    o introducing integer flag debugLevel
1418      - debLevZero: suppress all output
1419      - debLevA: standard
1420      - debLevB: equivalent to current debugMode=.TRUE.
1421    o introducing pathname variable mdsioLocalDir for mdsio
1422      that can be specified at runtime
1423      (relevant for cluster I/O to local disk)
1424    `
1425    >>>checkpoint51b_post
1426    adjoint of ptracers
1427    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1428    o extended state in checkpoint_lev?, etc.
1429    o alternative ctrl/cost with tr1 or ptracer
1430    o new comlev1_bibj_ptracers
1431    o new ptracers.flow
1432    o made ptracers_forcing same as external_forcing_s
1433    o added verification for adjoint with ptracers
1434      - adm. grdchk fail so far
1435      - tlm. grdchk OK
1436      - checked tapelev/comlev recomputations: OK
1437    <<<checkpoint51b_pre
1438    
1439    checkpoint51a_post
1440    o added code for biogeochemistry package
1441      - new pkgs: dic, gchem
1442      - new subroutine in ptracers
1443    o modify code for biogeo packages
1444      - in model/src and pkg/ptracers
1445    
1446    checkpoint51
1447    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1448      - autodiff, ctrl, exf, grdchk, seaice
1449      kept separate packages
1450      - cost, ecco, obcs
1451    o updating verification/internal_wave, verification/lab_sea
1452      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1453    
1454    checkpoint50i_post
1455    o Preparing next differentiable checkpoint and sync
1456      of MAIN vs. ecco-branch
1457      - 1st step: this one is differentiable
1458      - 2nd step: next(! not this) checkpoint will have updated packages
1459                  from ecco-branch)
1460    
1461    checkpoint50h_post
1462    o new package "land": provide surface BC for AIM.
1463    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1464    o AIM: use true log-P extrapolation for near surface temp (= as in
1465        F.Molteni paper) ; update aim.5l_cs output.
1466    o New variable in PARM03 for more flexible pickups
1467    o somewhat cleaned package initialisation sequence for
1468      ctrl/ cost/ ecco/ in packages_... routines
1469    
1470    checkpoint50g_post
1471    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1472      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1473      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1474        made the default because of faster convergence than ADI
1475    
1476    checkpoint50f_post
1477    o exf totally restructured
1478      - replaced all exf_set_ routines by one generic exf_set_gen.F
1479        and made sure it's still differentiable
1480      - split exf_getffields.F into new exf_bulkformulae.F
1481      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1482      - updated adjoint/makefile and relevant verif. accordingly
1483    
1484    checkpoint50f_pre
1485     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1486          + change Evap over land. (update aim.5l_cs output)
1487     o added missing .cvsignores and made uniform across expts
1488     o changed configuration of tidal_basin_2d expt
1489     o added pkg/debug functions for tracing code in fatal crashes
1490     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1491     o new fn in pkg/monitor to stop model if solution grows too big
1492     o removed lots of single quotes from comments
1493    
1494    checkpoint50e_post
1495    o make KPP work with PTRACERS
1496     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1497       nearly a copy of kpp_transport_s
1498     - there is no analogue to SurfaceTendencyS, so I have to use
1499       gPtr(of the surface layer) instead
1500    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1501    checkpoint50e_pre
1502    
1503    checkpoint50d_post
1504    o change kpp output from multiple-record state files to single-record state
1505      files analogous to write_state.F
1506    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1507      analogous to the cg2d-related output.
1508    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1509      so that writing to internal file fn (with length 512) fails.
1510    checkpoint50d_pre
1511    
1512    checkpoint50c_post
1513    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1514    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1515    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1516    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1517    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1518    
1519    checkpoint50c_pre
1520    Merging from release1_p13:
1521    o bug fix for pkg/seaice dynamic solver
1522    o Added SEAICE_initialHEFF to pkg/seaice
1523    
1524    checkpoint50b_post
1525    o store u*,v* in gU,V instead of in guNm1,gvNm1
1526    o in order to put the momForcing out of the Adams-Bashforth:
1527      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1528      to timestep.F
1529    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1530    o re-generate output for highly sensitive test-exp:
1531       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1532    
1533    checkpoint50b_pre
1534    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1535    o corrected CPP option mismatch in exf_Bulk... functions for case
1536      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1537    
1538    checkpoint50a_post
1539    o Bug fix for merging between c50 and KPP.
1540      ikey was passed from thermodynamics to kpp_calc via
1541      common block rather than being recomputed in kpp_calc,
1542      in contradiction with new key itdkey.
1543      New key ikppkey created, and tamc.h headers updated.
1544    
1545    checkpoint50
1546    - 2nd step of merge with ecco-branch:
1547      merge changes in ecco-branch back into main trunk
1548    - bug fix in find_alpha
1549    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1550    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1551    - merged some sliced AD support routines
1552    
1553    checkpoint49
1554    merged from ecco-branch:
1555    o exf:
1556      - Enable initialisation of forcing fields to constant
1557        (runtime) values.
1558      - in exf_getffields.F
1559        Reduce i-/j-loop to interior domain, discarding overlaps.
1560        That also fixes wrong TAF-key computations for key_1, key_2
1561        with bulf formulae.
1562      - exf_init.F modify #ifdef for exf_init_evap
1563      - exf_getffieldrec.F, ctrl_getrec.F
1564        The following INT-usages are not safe:
1565          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1566          fldcount = int(fldsecs/fldperiod) + 1
1567        and were modified.
1568    o autodiff: checkpoint_lev...
1569      - updated storing for bulk formulae (some arrays were missing)
1570      - added state for seaice package
1571      - synchronized with main branch
1572    o DIVA:
1573      Modif.s in
1574      - the_main_loop.F
1575      - the_model_main.F
1576      and added cost_final_restore.F cost_final_store.F
1577      o With these changes, it is possible to fully separate
1578        the first forward run to compute the cost function (mdthe_main_loop)
1579        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1580        into separate model executions.
1581        This enables better tuning of DIVA to given queue sizes.
1582      o Loss of cost function value in consecutive DIVA runs is
1583        fixed by storing to 'costfinal' file.
1584      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1585        beginning/end of adjoint integration is accounted for.
1586      The current changes apply to TAF-1.4.26.
1587      TAF has one remaining bug, requiring one manual change
1588      (see MITgcm manual).
1589    o cal: synchronized between MAIN and ecco-branch
1590    
1591    checkpoint48i_post
1592    o Changes to restore differentiability of code w.r.t. previous tag
1593      (mostly adding new routines to make list and replacing
1594      pressure by totPhiHyd).
1595    o Updated and merged grdchk package
1596      - has both ADM and TLM checks
1597      - works for single- and multi-proc.
1598      - output cleaned
1599      - worked successfully for parallel DIVA
1600    o genmake:
1601      - Adding -platform=SP4
1602      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1603    o Modif. for DIVA:
1604      ctrl_unpack should not be called in intermediate DIVA interval.
1605      (similar thing would apply for active files such as
1606      tbar, sbar, psbar, which should not be reinitialised;
1607      only relevant for ecco-branch)
1608    
1609    checkpoint48h_post
1610    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1611    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1612    o Added SEAICE_initialHEFF to pkg/seaice
1613    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1614    
1615    checkpoint48g_post
1616    --- EOS:
1617    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1618      store total Potential in totPhyHyd for diagnostics & EOS.
1619    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1620    --- Pressure/geopotential gradient:
1621    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1622    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1623      ( changes results of global_ocean_pressure )
1624    o NLFS + z-coord.: add eta*Rho' contribution.
1625    o accurate phiHyd when using interface-W at the middle between 2 centers
1626     ( changes results of ideal_2D_oce )
1627    o includes r* 2nd term in potential gradient.
1628    
1629    checkpoint48f_post
1630    Merging from release1_p12:
1631    o Modifications for using pkg/exf with pkg/seaice
1632      - improved description of the various forcing configurations
1633      - added basic radiation bulk formulae to pkg/exf
1634      - units/sign fix for evap computation in exf_getffields.F
1635      - updated verification/global_with_exf/results/output.txt
1636    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1637      (SBO) core products, including oceanic mass, center-of-mass,
1638      angular, and bottom pressure (see pkg/sbo/README.sbo).
1639    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1640      to avoid negative values in shallow regions.
1641      - updated verification/natl_box/results/output.txt
1642      - updated verification/lab_sea/results/output.txt
1643    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1644    o Added useSingleCpuIO option (see PARAMS.h).
1645    o Updated useSingleCpuIO option in mdsio_writefield.F to
1646      work with multi-field files, e.g., for single-file pickup.
1647    o pkg/seaice:
1648      - bug fix in growth.F: QNET for no shortwave case
1649      - added HeffFile for specifying initial sea-ice thickness
1650      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1651    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1652      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1653    o pkg/seaice:
1654      - adjoint-friendly modifications
1655      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1656    
1657    checkpoint48e_post
1658    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1659    o dynamics: change definition of computational domain & adapt mom_fluxform
1660      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1661    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1662        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1663        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1664        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1665        inverted_barometer solid-body.cs-32x32x1
1666      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1667    
1668    checkpoint48d_post
1669    o in preparation for r*:
1670     a) use pre-computed gradient of hydrostatic potential:
1671        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1672     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1673        => affects results of glob_oce_pressure (different truncation error)  
1674      update output.txt of ideal_2D_oce & global_ocean_pressure
1675    
1676    checkpoint48d_pre
1677    o in preparation for r*:
1678      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1679      pass the 2 comp. of the grad. as arguments to momentum S/R.
1680      but for the moment, only used if it does not change the results.
1681    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1682    
1683    checkpoint48c_post
1684    Modifications in treatment of initial flux forcing controls
1685    to avoid extra storing of flux fields.
1686    
1687    checkpoint48c_pre
1688  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
1689  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1690    

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