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revision 1.123 by jmc, Fri Jan 24 17:55:25 2003 UTC revision 1.597 by heimbach, Mon Jan 2 21:19:06 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o clean up 3-dim. relaxation codes:
8      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
9      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
10      * Thanks to Tom Haine for testing!
11    
12    checkpoint57z_post
13    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
14      affects output (@ truncation level) of exp. plume_on_slope ; updated.
15    o fix the pickup behavior for obcs in combination with ptracers
16    o fix a bug in ptracers_external_fields_load
17    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
18      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
19    o transfered surface NH pressure to eta field (if exactConserv).
20    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
21         and update lab_sea output.txt file.
22    o completing 3-dim. relaxation code: additional term
23         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
24      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
25      * At compile time, in "EXF_OPTIONS.h" set
26          #define  ALLOW_CLIMTEMP_RELAXATION
27          #define  ALLOW_CLIMSALT_RELAXATION
28      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
29          tauThetaClimRelax3Dim = 15552000.0,
30          tauSaltClimRelax3Dim  = 15552000.0,
31      * 3 cases:
32          1) Use a constant-in-time 3-dim. field
33          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
34          3) Real-time relax. to time-evolving prescribed field
35    o Adding Laplacian-type smoothness constraint on
36      initial and boundary (forcing) controls (ic, bc)
37      * enable at compile-time via
38        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
39      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
40      * Absolute scale somewhat unclear so far
41      * no area weighting was included since no other cost term does so far
42    
43    checkpoint57y_post
44    First step for a NLFS adjoint
45    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
46    o new init. routines for calc_r_star, calc_surf_dr
47    o still need to deal with ini_masks_etc
48    o testreport seemed happy
49    checkpoint57y_pre
50    
51    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
52    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
53    o add new offset feature to offline pkg (plus minor cleanup)
54    o cfc fixes for final year of integration
55    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
56      be in GCHEM_OPTIONS).
57    
58    checkpoint57x_post
59    o fix testreport Pb in multiple test experiment.
60    o cleanup our namelist syntax in verification:
61      - make it more F95 standards compliant (some work still needed)
62      - allows the vast majority of our tests to work with gfortran
63    o Non-Hydrostatic:
64     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
65     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
66    o Allow to apply AB on T,S rather than on AB(gT,gS):
67     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
68     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
69       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
70     - need a "clever" read_pickup to restart from the other AB formulation
71    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
72    o remove some unused variables (reduces number of compiler warnings)
73    o adjoint
74      * Disable useVariableViscosity for adjoint for time being
75        (there are a number of extensive recomputations)
76      * Initialize certain variables needed for adjoint
77    
78    checkpoint57w_post
79    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
80                 fix the singleCpuIO RS version of MDSWRITEFIELD
81       and add a WARNING if using globalFiles=T with multi-processors.
82    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
83      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
84    o tracer advection scheme:
85      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
86       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
87       was not very convenient).
88      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
89       (further tests needed for the implicit DST & Flux-Limiter schemes).
90    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
91      and sRef for convenience, handy, when you want to initialize
92      ptracers in a large domain with a constant non-zero value. Also,
93      untangle ptracers_init.F a little.
94    
95    checkpoint57v_post
96    o change dome exp. to use variable viscosity in side-drag terms.
97    o remove all the files from the cfc_offline test since they are now
98      incorporated into tutorial_cfc_offline which has been producing
99      identical results for a few days of testing
100    o add new parameter: sideDragFactor to enable half-slip-side BC
101      and change side-drag S/R to use viscosity from mom_calc_visc
102      (can switch back by setting sideDragFactor=0.); affects results at
103      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
104       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
105    o vorticity & strain are now computed without masking, to account for
106      no-slip-side BC in variable viscosity calculation ; mask is applied
107      anyway later on, before computing advection/coriolis terms.
108    o modify exp4 to test new obcs support for reading from external files
109      and for passive tracers
110    o fix behavior of ptracers_monitor when monitor output is written to a
111      netcdf-file; still not independent of monitor.F (writes in the same
112      file).
113    o change default value of tRef (put a uniform, meaningful value for ocean
114      & atmos) and initialize sRef (was missing, as Martin mentioned).
115    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
116      to be proportional to enstrophy dissipation length.  Thus,
117       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
118      This is now consistent with Smagorinsky and with the manual.
119    
120    checkpoint57u_post
121    o OBCS and PTRACERS: add open boundary support for passive tracers
122      - either use homogenous (pseudo) v.Neumann conditions or prescribe
123        OB-values from file; this is not different from the way theta and salinity
124        are treated
125      - however, Orlanski-radiation conditions are not supported, and the model
126        will stop if you use pTracers and Orlanski at the same time.
127      - beefed up the rountine obcs_external_fields_load: now only those open
128        boundary values are overwritten with values from files for which there
129        are really files, otherwise the OB-fields remain untouched. This makes
130        it possible to use different OBs at different ends of the domain (as
131        with EXF)
132    o reduce number of exch calls in shap_filt (s2).
133    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
134      truncation level) 4/5 MLAdjust test results (11&12 digits match).
135    
136    checkpoint57t_post
137    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
138    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
139      same truncation, independent of the face number: affects affects several
140      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
141    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
142      note that biharmonic viscosity + no-slip was not tested in any experiment.
143    o fix bug in non-linear free-surf side-drag ; generate new output for
144      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
145    o make mnc honor the writeBinaryPrec flag for most kinds of output
146    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
147    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
148      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
149    o add brackets in multi-terms sum to get same truncation, independent of
150      the face number (manage to get exactly same value of gU,gV at the cs-edge)
151      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
152    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
153      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
154      a maximum grid-scale Reynolds number.  Also, changes all length calculations
155      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
156      Suggested values of viscosity parameters found in mom_calc_visc.
157      Many new viscosity diagnostics available.
158    
159    checkpoint57s_post
160    o Add clearing-house for viscosity calculations, mom_calc_visc and
161      correct numerous bugs in LeithD and Smagorinsky discretizations.  
162      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
163      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
164      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
165      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
166      The Strain-Tension form is now called with useStrainTensonVisc=.true.
167      ViscAhStrain and viscAhTension are now retired.
168    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
169    o In response to JMC's bug report, genmake2 now ignores any soft-links
170      that it finds in the *current* directory when searching for files.
171      Soft-links found in any other source directories will still work as
172      they did before.
173    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
174      a C routine to unlimit the stack size
175    o mnc-ify pkg/aim snapshot vars
176    o mnc-ify pkg/land as requested by Daniel
177    o various changes to mnc including:
178      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
179      - output can now be grouped so that all files within a group
180          change the ITER portion of their names in lock-step together
181      - can now read ("global") PER-FACE (in addition to PER-TILE) files
182          and works with both EXCH1 and EXCH2 (but needs more testing)
183      - writing works for all verification test cases w/ g77 on Linux
184    
185    checkpoint57r_post
186    o make MNC variable initialization happen earlier
187    o add diagnostics for (almost) each term of the momentum Eq.
188    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
189    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
190    o remove MINIMAL_TAVE_OUTPUT option ;
191      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
192    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
193      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
194    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
195    o add time-dependent SST, SSS control
196    o cost terms in ecco/ modularized (new cost_generic.F)
197    o cost_averages routines are modularized (new cost_averagesgeneric.F)
198    o new infrastructure for seaice model vs. obs misfits in seaice/
199      * driver from the_main_loop.F is seaice_cost_driver.F
200      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
201      * gradient check in Exp. 6a of natl_box_adjoint/
202    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
203      (see README file)
204    
205    checkpoint57q_post
206    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
207    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
208      - bug was reported by Jean-Michel and Ian Fenty
209    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
210      update exp. cpl_aim+ocn output.
211    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
212      Needed for high-res. runs with large global files
213      to be able to limit tapelev size
214    o Changed some tests for adjoint:
215      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
216      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
217      * global_ocean.90x40x15/ back to default 3-level checkpointing
218    o Modifications to enable scripted COMMON to MODULE conversion
219      * verification/OpenAD/code/ has necessary scripts and description;
220      * converts, compiles and runs successfully;
221    
222    checkpoint57p_post
223    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
224    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
225      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
226    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
227    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
228      (was already the case for dissipation with mom_vecinv,
229       and also the case for grad.PhiHyd when staggered-timeStep)
230      This will allow to put dissipation out-off the AB time-stepping.
231     Unfortunately, affects truncation error. Update output of exp. that "fails"
232      (cg2d matching number) and leave the others for later: front_relax(10),
233      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
234      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
235    
236    checkpoint57o_post
237    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
238      (2) its ready to be documented during the 20050801 DocFest
239    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
240      for ideal_2D_oce and lab_sea on linux_ia32_g77
241    o set to #undef CTRL_SET_OLD_MAXCVARS_30
242      in global1x1_tot/code_seaice_adj to access indices 32, 33
243      (worth another tag)
244    
245    checkpoint57n_post
246    o adding precip control xx_precip 32
247    o adding swflux control xx_swflux 33
248    o Replacing 10 forcing penalty cost routines by 1 generic.
249    o Implementing partitioning in time-mean and variable adjustment
250      for atmos. state.
251    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
252    o in natl_box_adjoint:
253      * updated exp 1 to 10
254        (but does not have time-mean vs. variable split results yet)
255    o updated global1x1/*_seaice_adj/
256      to incorporate latest changes
257    o enable useSingleCpuIO for mdsio vector routines
258      (applies in particular to tapelev I/O)
259    o removed inefficient K-loop in all active_file*control*.F
260    
261    checkpoint57m_post
262    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
263      and advect_cs (use EXCH-2 and standard cs-32 grid files).
264    o pkg/exch2: filling of face-corner halo regions is optional
265      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
266    
267    checkpoint57l_post
268     tag before updating tutorials (pre-release-2)
269    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
270       for output and interpolation of input fields onto model grid)
271    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
272       Affects results of exp. rotating_tank ; update output.txt.
273    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
274          and taking the square quantity and/or using a fraction-weight field.
275    o fix aim_diagnostics_init.F mate numbers.
276    o add mnc output capability to diagnostics/diagstat and update
277      our cvsignore files for the ACSII output generated
278    
279    checkpoint57k_post
280    o lab_sea now uses diagnostics package and provides a suite of
281      new EXF diagnostics output.
282    
283    checkpoint57j_post
284    o exf
285      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
286        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
287        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
288      * extended diagnostics output
289        - now includes all EXF variables
290        - hs, hl moved to common block
291        - separate S/R for diagnostics, called after ctrl vector is added
292        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
293        - EXFqnet contains true Qnet (i.e. includes qsw)
294      * updated verif. lab_sea, global_with_exf
295      * Rearranging hflux (exf_mapfields -> exf_getforcing)
296        to ensure that diagnostics sees a true EXFqnet
297    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
298    o diagnostics pkg: change pointers so that 1 diagnostic can be used
299      several times with different frequencies.
300    o mnc-ify the thsice package as requested by Daniel Enderton
301      - the monitor--MNC output needs work
302      - many attributes need to be added (most are currently blank)
303    o mnc-ify theaim_v23 package as requested by Daniel Enderton
304      - many attributes need to be added (most are currently blank)
305    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
306    o add Sadourny like discretization to the 4th.O vorticity advection scheme
307    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
308      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
309         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
310    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
311     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
312    
313    checkpoint57i_post
314    o Diagnostics package was changed: diagnostic allocation is now deactivated
315      by setting an empty file name in the namelist (used to be by setting 0 frequency)
316    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
317      add 1rst Order upwind vertical Shear.
318    o add a quick fix for A/B checkpointing in OFFLINE mode
319    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
320      end-run around the C/Fortran linking horror in eesup/src/timers.F
321    o added pkg/runclock: allows user to terminate run based on wall clock
322    o added non-hydrostatic scaling parameter: nh_am2
323    o pkg/my82: futile attempt to make results compiler-independent by adding
324      some "_d 0", etc. no effect.
325    o for mnc output, fill the 'T' coordinate var with myTime and create a
326      separate 'iter' variable for iteration count
327    o pkg/diagnostics:
328      add new capability: output of Global/Regional & per-level statistics ;
329      tested against monitor output (including land & thSIce) on various exp.
330    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
331    
332    checkpoint57h_done
333      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
334      data.diagnostics, data.gchem, data.ptracers) is done.
335    
336    o pkg/diagnostics: prepare for Global/Regional statistics.
337      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
338    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
339      and rename it: DIFFERENT_MULTIPLE
340    
341    checkpoint57h_post
342    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
343    o pkg/diagnostics: change output frequency, now in seconds (instead
344      of Nb of iterations). This requires to change data.diagnostics.
345    checkpoint57h_pre
346    
347    o in mnc, let the user create the output dir if both mnc_outdir_date
348      and mnc_outdir_num are false
349    o add fflags() to pkg/diagnostics which allows one to specify, on a
350      per-file basis, the file precision [default behavior is unchanged]
351    o added diagnostics to pkg/kpp, including computation of mixed layer
352      depth based on a temperature/density criterion
353    o updated verification/natl_box to test the new pkg/kpp diagnostics
354    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
355    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
356    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
357      not mnc -- this mistake was found by JMC and is now corrected
358    
359    checkpoint57g_post
360    o add Adams-Bashforth 3rd Order time stepping:
361      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
362      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
363    checkpoint57g_pre
364    
365    o make lambda[Theta,Salt]ClimRelax spatially varying
366      (default remains spatially uniform constant based on tau)
367    o added new control variables
368      * init. uVel, vVel, etanN
369      * lambda[Theta,Salt]ClimRelax
370    o separate masks used for ctrl_pack/unpack 'from write_grid' output
371      (suggested by G. Forget)
372    
373    checkpoint57f_post
374    o add parameter "baseTime" = model base time = time at iteration zero
375      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
376      account for baseTime shift
377    o move Coriolis arrays from PARAMS.h to GRID.h
378    checkpoint57f_pre
379    
380    o mnc-ifying the seaice package
381    o introduced an alternative length scale calculation for use in the limiting
382      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
383    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
384    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
385      as well as grad(vort3).  Made it compatible with both approximate form
386      for the cubed sphere and full form of these gradients.  Added flag
387      useFullLeith to select between approximate and full form.  
388    o add "d0" in getcon.F to reduce differences between compilers/platforms
389      update output.txt of exp. fizhi-gridalt-hs
390    o change port_rand funtion to allow to set the seed.
391    o fix obscure MNC bug involving conversion between reals and integers
392      - it caused no problems with certain (eg. gcc, ifc) compilers but the
393        new version is now more standards-compliant
394    o adjoint-related modifications
395      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
396      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
397      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
398    
399    checkpoint57e_post
400    o Adding eddy stress controls a la Ferreira et al.
401    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
402    
403    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
404      update output.txt of exp. fizhi-gridalt-hs
405    o add more "Z" dimensions and associated coordinate vars to MNC
406    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
407    o parameter calendarDumps: when set, approximate months (30-31 days) and years
408      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
409      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
410      months and years.  Requires pkg/cal.
411    o diagnostics: add pickup functionality
412      - off by default for backwards compatibility
413      - current version only uses MDSIO -- MNC will be added
414    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
415    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
416    
417    checkpoint57d_post
418    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
419    o modify verification/ideal_2D_oce so that it tests the creation of mnc
420      output from the diagnostics package
421    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
422    o make genmake2 more portable by using ".$FS" instead of ".f" for more
423      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
424    o add coordinate variables to the MNC output from the diagnostics package
425    o change MNC-flags default value: true when useMNC=TRUE
426    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
427      the ability (off by default) to read the grid information using MNC
428    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
429    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
430    o do snap-shot diagnostics at the middle of the time-interval (instead of
431      at the end).
432    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
433      new test for AIM with thSIce + slab-ocean
434    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
435    o move state variable diagnostics to the beginning of the time step ;
436      (note: still needs some work specially for snap-shot diagnostics)
437      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
438    
439    checkpoint57c_post
440    o Change testing option (-ieee) to get closer agreement between g77 & ifort
441    o generate new output.txt files on faulks with g77 & the new -ieee option
442    checkpoint57c_pre
443    
444    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
445      update output.txt of exp. global_ocean.90x40x15
446    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
447      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
448    o add saltFlux(+File) forcing capability with periodicExternalForcing
449    o allow to use pkg diagnostics for GM-Redi & ThSIce output
450    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
451    o improvements for the MNC output from DIAGNOSTICS:
452      - correct handling of the unlimitied dimension
453      - all dims now have associated coordinate variables
454      - variables located at U, V, and Corner ("Z") points are now written
455        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
456        *all* data points are output
457    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
458    o added pkg/seaice/seaice_monitor.F
459    o mdsio_readfield.F can now read files visible only to master MPI process.
460    o pkg/seaice: some test code for ice-modified ocean stress
461    o exf_getffields interpolation defaults to bilinear for all scalar forcing
462      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
463      spurious negative numbers for precipitation and humidity.  Will cause
464      some small numerical differences for integrations using pkg/exf/exf_interp.F.
465    o pkg/ctrl/
466      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
467        May be enabled via doPackDiag
468      *  introduce z-scaling of
469         + gradient (doZscalePack) and
470         + control (doZscaleUnpack)
471    o pkg/mdsio/
472      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
473      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
474    
475    checkpoint57b_post
476    o simplify options in diagnostics_fill arguments (remove weird combinations)
477    o fix MNC coordinate variables so that they now contain per-face index
478      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
479      general, EXCH2 grids are only aligned to a "local" coordinate system
480    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
481    o Implement instantaneous output within pkg diagnostics:
482      setting a negative frequency in data.diagnostics produces
483     "snap-shot" output (as opposed to time-average if freq > 0)
484    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
485      NOTE: change ptracer diagnostics name: use 2 characters to work with
486            more than 9 tracers. Add also diagnostics of advect & diffus flux.
487    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
488      becomes the coordinate variable for the 'T' dimension
489    o add CF-style coordinate variables to MNC
490      - just a first cut:  numbers are meaningless on the cubesphere and
491        missing along the T axis but otherwise it works!
492    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
493    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
494    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
495      this is based directly on what the model compute, so that the content of
496      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
497    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
498    o clean up build options files for SunOS, in particular
499      - remove -traditional from xmakedepend
500      - change -xarch=v9 to -xarch=native for f77
501      - restore use of make (not gmake)
502      - add CC=gcc if using g77
503    o changes per discussion of AM, JMC, & EH3 today:
504      - move redundant "grid" variables out of "state" -- in preparation of
505        creating proper CF-style coordinate variables and in recognition
506        that any/all grid variables can be easily copied (eg. w/NCO) from
507        the grid files into any of the other NetCDF files
508      - *always* output grid variables with MDSIO (this will eventually be
509        changed)
510      - output MNC grid file if useMNC is true
511    o every instance of _END_MASTER() has been found and replaced with
512      _END_MASTER( myThid ) in order to satisfy certain picky Sun
513      preprocessors
514    o re-arrange diagnostics pkg initialisation:
515     - allow each package to extend the available diagnostics list
516     - add some checking and fix small problems (multi-threaded, ...)
517     - new S/R diagnostics_fill (replace fill_diagnostics):
518       look through the short list of active diag. (instead of the long list)
519       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
520    
521    checkpoint57a_post
522    o this set of changes restores TAMC compatibility
523      tested for global_ocean.90x40x15 adjoint on trough
524      (what a pain)
525    
526    checkpoint57a_pre
527    o some modifs in tools/build_options for sunos
528    o call ctrl_pack for ctrl at end for optimcycle=0
529    
530    checkpoint57
531    o add horizontal bi-harmonic viscosity for vertical velocity
532      - new parameter viscA4W (defaults to viscA4)
533      - affects only non-hydrostatic code
534      - to be done: no-slip lateral boundary conditions
535    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
536    o implement Implicit Vertical advection for pTracers
537    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
538      (implemented also for implicit vertical diffusion & advection)
539    o OBCS: extend application of tracer open boundary conditions
540      to a strip beyond the boundary of width Olx/Oly
541    o add call monitor to TAF set of required calls (flow directives)
542      and include in natl_box_adjoint
543    o untangle a few ifdefs related to cost, ctrl, autodiff
544      untangel a few ALLOW_ECCO_OPTIMIZATION
545    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
546      (theta2, salt2 in ecco_cost_weights)
547    
548    checkpoint56c_post
549    o OBCS as control variables
550      - update ctrl_ad_diff.list, obcs_ad_diff.list
551      - remove balance of obcs controls from default
552      - fix index bug nobcs in ctrl_init
553      - fix dummy fields filen in ctrl_pack
554      - add dummy weights for obcs
555    o lsopt: comment out fort.94 output
556    o optim:
557      - remove unnecessary header files
558      - adjusted namelists
559      - add xerbla.F to Makefile
560    o exf:
561      - multiple modifications of exf_check_range
562      - unit change in exf_init_runoff from [m/year] to [m/s]
563    o mdsio:
564      - i/o-vector change debugLevel from debLevA to debLevB
565    
566    checkpoint56b_post
567    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
568      is called from DO_THE_MODEL_IO
569      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
570      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
571      - clean up PTRACERS_WRITE_TIMEAVE a little
572    o add another verification experiment that tests both the cfc-pkg and
573      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
574      reactive tendencies treated inline with regular timestepping
575    o testreport previously did a lousy job of comparing small numbers, so
576      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
577      implemented in the little c-progam tmp_cmpnum.c which is embedded in
578      testreport.
579    o ptracers_monitor: bug fix for MPI
580    
581    checkpoint56a_post
582    o GCHEM: finish reorganizating the package
583      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
584        (introduces another 3D-array for each passive tracer, but only if
585        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
586        gchemTendency is not needed because the timestep is done separately)
587      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
588      - GCHEM is now---more or less cleanly---separate from PTRACERS
589      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
590        so clear to me how that should be done in a general way.
591    o CFC: improve formatting of output in CFC_ATMOS
592    o PTRACERS:
593      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
594        that ALL experiments with ptracers enable can be checked. This makes
595        GCHEM_MONITOR obsolete.
596      - include a runtime parameter PTRACERS_monitorFreq that defaults to
597        monitorFreq
598      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
599    o add PTRACERS (PTR0[1-5]) to testreport output
600    o exf_check_range:
601      * default changed to .TRUE.
602      * will check values for niter0 if debLevA, every timestep if debLevB
603      * STOP in exf_check_range if 'out of range'
604      * range chosen generous to allow for potential extema
605      TBD: a version with stricter range
606           permitted range would be runtime parameters
607    o GMredi:
608      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
609      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
610      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
611    o GCHEM:
612      - move call to GCHEM_FORCING_SEP, so that it is now called before
613        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
614      - introduced a useGCHEM runtime flag and applied it everywhere.
615      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
616        this flag is now only visible within GCHEM-pkg routines.
617      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
618        be replaced by a 3D array that is computed before thermodynamics; for
619        this, the tracer ID iTracer had to be included into the parameter list
620        of ptracers_forcing
621      - set up forward_step to call gchem_forcing, that will replace
622        gchem_forcing_int in ptracers_forcing
623      - cleaning up
624    o small cleaning of exch2: remove files that are also in eesupp/src
625    
626    checkpoint56
627    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
628    o mnc: cleanup "full" files--fixes out-of-memory problem
629    o ECCO-GODAE
630      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
631      * fully merged and updated from SIO code
632        windstress sign change affects
633        - exf_inscal_[u/v]stress
634        - sign of xx_tau[u/v] adjustments
635        - signs in cost_scat
636      * ctrl_get_gen: avoid update of tau[u/v] for first few days
637      * natl_box_adjoint updated and compressed
638      * 2-level checkpoint switch added
639        (tested in EXP. 1 of natl_box_adjoint)
640      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
641    o SVD
642      * first complete, non-hacked version for SVD calculations
643      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
644        performed via direct access files admtlm_vector.it????
645        (via ctrl_[un]pack)
646      * optimcycle is used for ARPACK iteration counter
647        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
648      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
649        and add linear transforms where necessary
650      * controls are initial/final SST, SSS (can be extended; need to check
651        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
652    o mdsio: filename info to both stderr, stdout
653    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
654      from sign change
655    
656    checkpoint55j_post
657    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
658      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
659    o add consistent build directories and .cvsignore files to verification
660    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
661    o make all subroutines 30 or less characters in length for certain older
662      compilers to work (a thorough search only turns up two routines in
663      pkg/ptracers)
664    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
665      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
666    
667    checkpoint55i_post
668    o change arrays for total vertical diffusivity (2.D if explicit,
669      3.D if implicit) ; each ptracer uses its own background value.
670    o added mnc/NetCDF output capability to ocn_compon_interf
671      - added bits to verification/cpl_aim+ocn so that it can run on
672        ITRDA and other clusters without the mpirun "-wd" option
673    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
674      configuration
675    o give MNC the ability to create additional files rather than
676      exceeding a specified file size limit "MNC_MAX_FILESIZE"
677      - the default is just less than 2GB which is a practical limit
678        on many systems
679    o Compute the non-local term using either KPP vertical diffusivity (=default)
680       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
681    
682    checkpoint55h_post
683    o add verification test "vermix"
684    o remove all the *_ioinc flags and replace with the single global
685      outputTypesInclusive flag
686    o allow to set a vertical profile of vertical diffusivity for T & S
687    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
688    o useMNC moved from data.mnc to data.pkg
689    
690    checkpoint55g_post
691    o Renaming carbon AD experiments to comply with testreport conventions
692    o Updating adjoint of Held-Suarez hs94.1x64x5
693    o Fixing directives for non-ECCO forward_step, after ECCO directives
694      have been fixed to avoid recomp. of do_oceanic_phys
695      Works well for global_ocean.90x40x15,
696      but recomp. issue remains for carbon
697    o Updating adjoint output for natl_box_adjoint after
698      pkg/ecco has been modified (see taga c55d_post)
699    
700    checkpoint55f_post
701    o rename to timeave_init_fixed
702    
703    checkpoint55e_post
704    o some delicate re-shuffle of store directives to avoid one
705      extra call of do_oceanic_physics
706      affects ecco_the_main_loop.F, do_oceanic_physics.F
707      checkpoint_lev1_directives.h
708    o NB: this may break global_ocean adjoint temporarily,
709      but it is clear how to fix it. Will do later, need this now.
710    
711    checkpoint55d_post
712    o ECCO specific cost function terms (up-to-date with 1x1 runs)
713    o ecco_cost_weights is modified to 1x1 runs
714    o modifs to allow observations to be read in as
715      single file or yearly files
716    o enable to read exf forcing fields as either
717      single file or yearly files (flag useExfYearlyFields)
718    checkpoint55d_pre
719    
720    o switch between 2-level and 3-level checkpointing
721    o add ability of MNC to write local and "partial" (eg. 2D slices where
722      the full 3D field is never actually stored) arrays to NetCDF files
723      with the correct (that is, the complete multi-dimensional) set of
724      array indicies
725      - used in mom_vecinv() to write the diagFreq output
726      - tested (demonstrated) in verification/aim.5l_cs
727    o further mnc-ification
728      - add verification/lab_sea to the list with mnc setups
729      - fix undefined mnc v-names in cd_code
730      - add kpp to mnc output (both snapshot and timeave)
731    o non-hydrostatic code
732      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
733        in calc_gw.F
734      - defaults to viscAh
735      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
736        friction or Leith) in non-hydrostatic mode, as long as there is
737        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
738    o pkg/cost
739      extend simple cost functions to treat time mean quantities
740      (T,U,V) via cost_accumulate_state from cost_tile
741    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
742        be 2 times larger than the minimum size the advection scheme requires.
743        now get a perfect conservation of salt in advect_cs test-exp (updated)
744    o GGL90 (Gaspar's TKE mixed layer)
745      - add horizontal diffusion of TKE, requires exchanges in
746        do_fields_blocking_exchanges, horizontal diffusivity is zero by
747        default. In OPA there is no horizontal diffusion of TKE but the
748        mixing coefficients are computed from a horizontal average of TKE of
749        6 points or so. I think that diffusion has a little more physical
750        justification.
751      - clean up ggl90_calc in the hope of reducing memory usage (this hope
752        was in vain)
753      - mask tke-variable in ggl90_init
754    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
755    o fix biharmonic diffusion on CS-grid.
756    o more obcs stuff
757      - added obcs_external_fields_load as an alternative to the EXF-pkg option
758        for reading boundary values. This routine is called from
759        obcs_prescribe_read
760      - updated obcs_check
761      - changed sponge layer relaxation parameter units for days to seconds
762      - turned off sponge layer by default
763      - changed argument list of OBCS_CALC to myTime+deltaTclock
764      - fixed about 35 bugs in obcs_external_fields_load
765    
766    checkpoint55c_post
767    o obcs stuff
768      - new runtime flags useOBCSprescribe, useOBCSbalance
769      - re-arranged obcs_calc
770      - moved exf_getobcs to obcs_prescibe_read
771        obcs_prescibe_read is called after ORLANSKI stuff
772        and independent of it (executable can contain all).
773      - updated obcs_check
774      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
775        These may be necessary only if tangential velocities are
776        prescribed at OB, not sure, needs testing.
777    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
778      which simplifies the calls and passes the ifc check-bounds test
779    
780    checkpoint55b_post
781    o add a 2D scalar, Z location, exchange_2 routine.
782    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
783      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
784      affects advect_cs results (for the wrong reason): update output.txt
785    o use a more standard discretization for biharmonic viscosity ;
786     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
787      affects results of dome set-up: update output.txt
788    o fix gad_advection.F (CubedSphere part), back to version 1.23
789    o fix bug in mom_vi_del2uv.F (CubedSphere part).
790    
791    checkpoint55a_post
792    o merged code to
793      * prescribe/read time-dependent open boundaries
794        (works in conjunction with exf, cal)
795      * sponge layer code for open boundaries
796      * each boundary N/S/E/W now has its own CPP option
797        (healthy for the adjoint)
798    
799    checkpoint55
800    o up-to-date adjoint of previous breaks
801      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
802      - global_ocean_ebm: adjoint still needs fix (TLM ok)
803      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
804      - carbon: * remove tr1-related adjoint verification
805                * add ptracer as control variable
806    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
807      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
808    
809    checkpoint54f_post
810    o in verification/carbin/ remove experiment related to
811      ALLOW_PASSIVE_TRACER (array tr1 etc)
812      code_ad/ input_ad/ results_ad
813    
814    o add two new packages
815      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
816        + subject to optimization (memory)
817      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
818        + subject to reordering (many GOTOs in the original code)
819        + so far opps is called for every (i,j) point, and then operates in
820          the vertical; one may want to reorder the scheme in order operate in
821          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
822          fields)
823    o overhaul of IO so that we now have flags for MDSIO and/or MNC
824      - all verification tests compile and run with linux_ia32_g77
825      - defaults are compatible with current input files--nothing
826        should change if you were not previously using MNC
827      - MNC output has been added in numerous places (eg. timeave)
828        but there are still a few writes not yet do-able with MNC
829        (this is in progress)
830      - flags now allow for either/or/both use of MDSIO and MNC and
831        documentation will soon follow
832      - numerous small formatting cleanups for ProTeX
833    o add version info (via BUILD_INFO.h) to MNC and stdout
834    
835    checkpoint54e_post
836    o add two new packages
837      - pp81 (Packanowski and Philander, 1981), Richardson number and
838        stratification dependent mixing
839      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
840      - these scheme operate in a similar manner as KPP (without ghat, of
841        course), however there is only one diffusivity that is used for both
842        temperature and salinity (and passive tracers)ç
843    o add offline package
844    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
845      provided by Stephanie Dutkiewicz
846    o genmake2: add ability to search for C compilers and cleanup test output
847      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
848    
849    checkpoint54d_post
850    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
851    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
852      leading to additional shift by 5 days each year of integration
853       (i.e. leading to considerable offset over the years)
854    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
855    o start with no AB and no initial filtering (staggerTimeStep):
856      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
857    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
858      (external loading & cpl import/export stay in forward_step.F)
859    o update coupling interface to work with new staggerTimeStep
860    o change MDSIO ptracers_pickup.
861    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
862    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
863    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
864    
865    checkpoint54c_post
866    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
867      this affects (truncation error) output.txt of test-exp:
868       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
869    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
870    o change Qnet to always be the net heat flux, (+upward).
871      affects (truncation error) output of natl_box exp.: updated
872    o define the max number of passive tracers in PTRACERS_SIZE.h
873    o start to test mnc routinely in exp0
874    o add sea-ice loading (sIceLoad) as a new forcing field.
875    
876    checkpoint54b_post
877    o add testreport "-j JOBS" option for parallel builds (tested and pretty
878       impressive on Altix and Opteron systems)
879    o diagnostics can now write NetCDF files through the mnc package
880    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
881    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
882    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
883      affects (truncation error) output of lab_sea & natl_box exp.: updated
884    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
885    
886    checkpoint54a_post
887    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
888    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
889    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
890    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
891      + internal_wave (shift in writing cg2d_ini_res)
892    checkpoint54a_pre
893    
894    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
895      - modified verification/lab_sea and natl_box_adjoint accordingly
896    
897    checkpoint54
898    checkpoint53g_post
899    o prepare splitting of thermodynamics: store convect.counter in common block
900    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
901      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
902    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
903    o new parameter "nShapS": allow to treat differently S from T (nShapT)
904    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
905    o restore adjointability
906    
907    checkpoint53f_post
908    o modifications that affect AIM experiment results (update output.txt):
909      - no advection of S at top interface Nr (pkg/generic_advdiff)
910      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
911    o AIM pkg:
912      - include stability function into surf.Flux derivative relative to Tsurf
913      - calculate clear-sky radiation & surface temp. change (for diagnostics)
914    
915    checkpoint53e_post
916    o merged cylindrical coord configuration
917    o added rotating_tank experiment
918    checkpoint53e_pre
919    
920    checkpoint53d_post
921    o faulks upgraded: re-generate output.txt that have changed:
922       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
923    o Added Bryan and Lewis, 1979, vertical diffusivity profile
924    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
925    o added Sadourny discretization of Coriolis
926      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
927      - re-enabled use of omega3 (useAbsVorticity)
928    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
929      vector-invariant equations
930      - note: does *NOT* yet use same variable visc. for no-slip BC's.
931    o recoded the lateral boundary conditions for non-hydrostatic w, this time
932      hopefully without new bugs
933      - still to do: biharmonic friction for non-hydrostatic w
934    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
935    o regenerated output for global_ocean_ebm (using -ieee)
936    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
937      of mom_common/
938      - simple re-arrangement of instructions within computing loop
939    checkpoint53d_pre
940    
941    checkpoint53c_post
942    o new version of coupler for AIM+thSIce and Ocean models
943     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
944     - land: change Evaporation of snow
945     - aim with thSIce: fix bug in snow-precip.
946    o changes to calc_gw.F
947     - bug fix for w^2 term near the bottom boundary
948     - (hopefully) improve the lateral slip boundary condtions for use with
949        partial/looped cells
950      - because the bug fix changes two verification experiments anyway (exp5
951        and plume on slope), change the lateral boundary condition from half slip
952        to the value of no_slip_sides
953    o ebm package wasnt quite up to the parallel task. Fixed that.
954    o Adjoint of EBM package + verification
955      * TLM OK
956      * ADM not sufficient accuracy yet (needs further testing)
957    
958    checkpoint53b_post
959    o Commiting new energy balance model to repository
960      * package is pkg/ebm
961      * verif. is verification/global_ocean_ebm
962      * references are in ebm_driver.F
963    C      * X. Wang, P. Stone and J. Marotzke, 1999:
964    C        Global thermohaline circulation. Part I:
965    C        Sensitivity to atmospheric moisture transport.
966    C        J. Climate 12(1), 71-82
967    C      * X. Wang, P. Stone and J. Marotzke, 1999:
968    C        Global thermohaline circulation. Part II:
969    C        Sensitivity with interactive transport.
970    C        J. Climate 12(1), 83-91
971    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
972    C        Destabilization of the thermohaline circulation
973    C        by atmospheric eddy transports.
974    C        J. Climate 7(12), 1870-1882
975    o Will need long integration testing.
976    checkpoint53b_pre
977    
978    o created pkg/mom_common in preparation for variable viscosity code
979    o renamed and split ini_mnc_io
980    o pkg/land: only liquid water can diffuse or run-off
981    o AIM using land: soil wetness availability account for snow
982    o added printMapIncludesZeros to EEPARMS namelist
983    
984    checkpoint53a_post
985    o restore TAMC compatiility for exf_constants.h
986      (no usage of _d in .h)
987    o Additional storing in KPP in an attempt to fix
988      TAMC problem with adjoint of KPP code.
989      (no success...)
990      Identical code works fine with TAF.
991    o Fixed verification/natl_box_adjoint experiments.
992      Initial conditions for Experiments 4 and 5 are now
993      set to "SEAICE_initialHEFF=0", which is more reasonable,
994      and hence gives results closer to that of Experiment 2.
995      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
996    
997    checkpoint53
998    o stable checkpoint with up to date adjoint
999      TLM tests only run for 1st grdchk at the moment. Its unclear if
1000      this is a code problem or a problem with resetting code for g_
1001      variables that is being autogenerated wrong.
1002      Otherwise:
1003       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1004       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1005         are both still in chaos following their security messes.
1006    
1007    checkpoint52n_post
1008    o various build (mostly genmake2) changes including:
1009      - ability to build/run more easily within Cygwin and MacOS X
1010      - more complicated Makefiles with a stronger dependence on Gnu Make
1011    o pkg/seaice modifications
1012      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1013        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1014        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1015      - changed proxy for geostrophic velocity and updated
1016        verification/lab_sea/results/* accordingly
1017      - removed ADI dynamic solver from pkg/seaice
1018      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1019        they caused a segmentation fault under certain circumstances
1020      - removed unused field WATR
1021    o bug fix in exf-package:
1022      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1023         now reflect that.
1024    o small fixes in the cal-package:
1025      - set reference date to first of January for the 'model'-calendar
1026      - failing of cal_CheckDate in cal_FullDate now actually results in a
1027        warning
1028    o small modifications in exf-package to increase flexibility:
1029      - change climtempfreeze from a constant to a runtime parameter that
1030        is specified in data.exf_clim (default = -1.9)
1031      - introduce runtime parameter windstressmax (default = 2.0) that is
1032        specified in data.exf
1033    o fix in pkg/thsice:
1034      - update Evap (Tsf changes) to be consistent with Latent heat flux
1035      - maintain snow precipitation unchanged (even if Tsf >=0).
1036     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1037    
1038    checkpoint52m_post
1039    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1040      this does not change any of the results, because myIter=0 in swfrac always
1041      lead to jwtype=2 (the default anyway), but the call makes little sense
1042      as a default
1043    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1044    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1045      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1046    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1047    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1048    o extending useSingleCpuIO option to work with new exch2 I/O format
1049      - old-style, missing-tile I/O is still accessible by defining CPP
1050        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1051    o monitor package can write to NetCDF files and/or STDOUT
1052    o fix re-definition bug in MNC_GRID_INIT_ALL()
1053    o doc/api_reference added
1054      - a framework for building an API Reference Manual using all
1055        the "protex" comments embedded in the code
1056      - see pkg/generic_advdiff, pkg/mnc for examples
1057    o MNC:
1058      - make myThid the last argument for all subroutines
1059      - new default for the grid files: NO halos
1060      - add useMNC and other run-time flags
1061      - separate per-file-group handling of the unlimited dimension
1062      - early initialization of MNC w/ flags read at the eeboot stage
1063        and lookup tables set in initialize_fixed
1064      - write all MNC output to a freshly-created directory
1065    o thermodynamics sea-ice (thsice) is now tested with testreport.
1066    o test exp. advect_cs: use the standard cs32 grid ; update output.
1067    o Added functionality to grdchk:
1068      pick global i,j,k position (or nearest wet) where to perform check.
1069    
1070    checkpoint52l_post
1071    o new land formulation:
1072      a) use ground enthalpy as prognostic variable to ensure exact
1073         energy conservation.
1074      b) account for water temperature and for latent heat of freezing
1075         in all processes (rain, run-off, ground storage)
1076      c) compute surface and ground temperature implicitly.
1077    o aim_v23 modification for new land model:
1078      a) Treat separately land / ocean / sea-ice surface fluxes
1079         to allow implicit computation of land & sea-ice surface temp.
1080      b) add snow precipitation.
1081    checkpoint52l_pre
1082    
1083    o fix problem (when 1 tile is empty) in min/max monitor.
1084    o fix bug in timeAve (u,vZetatave in common block)
1085    o no restoring terms under ice for pkg/seaice
1086    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1087    o bug fix for pkg/seaice pickups
1088    o change MNC call locations and add coordinate attributes
1089    o mask vorticity at the corner ; affects global_ocean.cs output
1090    o fix ini_curvilinear_grid ; test CS experiments with mpi
1091    o aim.5l_cs: modify sea-ice fraction input file ; update output
1092    o exf: Adding simple range check routine for exf fields after read
1093    
1094    checkpoint52k_post
1095    o removed top-level directory "diags"
1096      - we migrated these functions to pkg/timeave a long time ago
1097    o fixed bug introduced in pkg/monitor
1098    o accuracy ctrlprec = 32 insuffient for gradient checks using
1099      averaged fields (I/O via cost_averages)
1100      -> use ctrl.h in active_file*.F to control I/O precision.
1101    o paramter list of CALL ADTHE_MAIN_LOOP
1102    o added initial do_the_model_io to ecco
1103    o set all ...Freq to zero after cost_final
1104      taveFreq, dumpFreq, pChkptFreq
1105    o MAIN and ECCO differentiability restored
1106    
1107    checkpoint52j_post
1108    o fix nchklev in tamc.h for global_ocean...
1109    o Bringing flow and store directives up-to-date
1110    o Really weird thing!
1111      call do_the_model_io from the_main_loop with parameters
1112      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1113      TAF places a faulty re-call of initialise_varia
1114      after cost_final call which should not be there!
1115    checkpoint52j_pre
1116    
1117    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1118      error messages
1119    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1120    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1121      debug output
1122    o modfied mdsio_writefield.F to handle non-global files under exch2
1123    o update AIM Cubed-Sphere exp (aim.5l_cs):
1124      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1125    o update AIM Equatorial Channel exp:
1126      use standard aim_v23 pkg and change the SST fields to be more realistic.
1127    o globalFile now works with exch2
1128    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1129      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1130    o limit timeave output for hi-res integrations
1131    
1132    checkpoint52i_post
1133    o removed CPP_EEOPTIONS.h from verification/*/code
1134    o updated the tiling for global_ocean_pressure
1135    checkpoint52i_pre
1136    
1137    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1138      the old pkg/aim).
1139    
1140    checkpoint52h_pre
1141    o shortened offending lines in exch2_send_rx?.template
1142    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1143    o genmake2: add build & execute test for NetCDF code
1144    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1145      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1146    o added useSingleCPUIO flag to monitor.F and mon_out.F
1147    o added temporary hack for sea-ice dynamics on the cube:
1148      metric terms are ignored and it is assumed that
1149      there is no sea-ice on cube faces 1, 2, 4, and 5.
1150    
1151    checkpoint52f_post
1152    o added exch2 cube routines to pkg/exch2
1153    o modified hs94.cs-32x32x5 to use it
1154    o added new grid files to hs94.cs-32x32x5
1155    checkpoint52f_pre
1156    
1157    checkpoint52e_post
1158    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1159      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1160    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1161      to work with implicit vertical advection and AB ;
1162    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1163    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1164     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1165    checkpoint52e_pre
1166    
1167    o fix bug in impldiff when Nr=1 or Nr=2.
1168    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1169    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1170    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1171      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1172    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1173    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1174    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1175    
1176    checkpoint52d_post
1177    o re-tiled many expts to allow comparison in multi-processor mode
1178      - updated output accordingly
1179      - changed hs94.128x64x5 to use intial T from file rather than use the
1180        random number generator
1181    o add infrastructure in model routines for fizhi and gridalt packages
1182    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1183    o changes to permit hi-res, cubed-sphere, configuration
1184      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1185      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1186      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1187        of surface winds for the cube
1188      (A verification experiment, based on global_ocean.cs32x15, but with
1189       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1190       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1191       complete with example surface forcing files and matlab scripts to look
1192       at the output and compare it with that of global_ocean.cs32x15.)
1193    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1194       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1195       to conform to the common rule.
1196    o check-in the first version of the coupler + interfaces for multi-components
1197       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1198       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1199       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1200       - ocean and atmos. share the same horizontal grid (no interpolation).
1201       - exchanges between component and coupler is done in forward_step
1202    o new verification experiment, cpl_aim+ocn:
1203       coupled ocean - AIM atmosphere on cs32 grid.
1204    
1205    checkpoint52d_pre
1206    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1207    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1208    
1209    checkpoint52c_post
1210    o Fixing OPTIONS files for use of exf:
1211      - ALLOW_ECCO not needed
1212      - ECCO_CPPOPTIONS.h should not be included from
1213        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1214        as has been the case in the past
1215      - All cal/exf related options are currently set in
1216        single header file. Should remain so until we
1217        agree on a consistent new policy.
1218    o Removed all CPP options for cal package.
1219      cal has no more CPP options.
1220    o modified STOREs in GAD_ADVECTION
1221    o corrected key comp. for passkey
1222    
1223    checkpoint52b_post
1224    o new version: "thsice" of thermodynamic sea-ice pkg:
1225     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1226     - modify fluxes but do not change theta directly;
1227     - light cleaning of bulk_force pkg (still needed with thsice).
1228     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1229       + output_thsice.txt to test thsice & bulk_force pkgs.
1230    o put back grid & coriolis monitor output.
1231    checkpoint52b_pre
1232    
1233    o call "do_the_model_io" at the beginning (=> dump initial state)
1234    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1235    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1236      (need info on NUMBER_OF_PTRACERS)
1237    o missing PTRACERS headers in some routines
1238    o default tamc.h in pkg/autodiff supposed to crash
1239      to ensure proper customization
1240    
1241    checkpoint52a_post
1242    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1243      - moved surfaceTendencyTice from pkg/seaice to main code
1244      - subroutine FREEZE_SURFACE now limits only surface temperature
1245        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1246        => new output.txt for global_ocean.cs32x15 & global_with_exf
1247      - keep the old version of FREEZE for backward compatibility;
1248        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1249      - corresponding modifs for TAF directives
1250    o added surface flux output variables to TIMEAVE_STATVARS
1251    o time-averaged output for pkg/ptracers
1252    o fix problem with ECCO-related divided adjoint
1253      snapshot file was missing some ad-variables,
1254      but no warning issued by TAF
1255    
1256    checkpoint52a_pre
1257    o some bug fixes for #undef REAL4_IS_SLOW
1258    
1259    checkpoint52 = ecco_c52_e35
1260    o after testing adjoints of checkpoint51u_post
1261    
1262    checkpoint51u_post
1263    o this is the post-merge tag of the ecco-branch
1264      (needs another clean checkout and re-testing)
1265    o various natl_box_adjoint configs and results
1266      but no input fields
1267    o obcs adjoint not yet merged!
1268    o adding ECCO global 1x1 and 2x2 degree configs
1269    o updated/extended some store directives for seaice
1270    o pkg/ecco now containes ecco-specific part of cost function
1271    o top level routines the_main_loop, forward_step
1272      supersede those in model/src/
1273      previous input data.cost now in data.ecco
1274      (new namelist ecco_cost_nml)
1275    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1276    
1277    checkpoint51t_post
1278    o this is the pre-merge tag of the ecco-branch
1279    
1280    checkpoint51s_post
1281    o cleanup: removed various obsolete #define-s
1282    o pkg/grdchk
1283      - renamed 'ph-grd 3' to 'grad-res'
1284      - merged from ecco-branch
1285        (remaining bug fixes for obcs gradient checks)
1286      - additional high-precision output for testreport
1287        (grep for 'precision_grdchk_result')
1288    
1289    checkpoint51r_post
1290    o cleaned up or removed CPP_OPTIONS.h files
1291    o updated results for some of the tests to reflect the new
1292      optfiles (-ieee: -O0 instead of -O3)
1293    
1294    checkpoint51q_post
1295    o cd_code:
1296      - moved cd_scheme.F -> cd_code_scheme.F
1297      - separate read_checkpoint from cd_code_ini_vars.F
1298      - separated cd_code part from write_checkpoint
1299      - updated AD_SOURCE, generated .flow
1300      - added CD_CODE_VARS.h to the_main_loop
1301      - Moving cd_code specific store dir.s to pkg/cd_code
1302    o ctrl package totally restructured
1303      - pack/unpack now optional and decoupled from
1304        xx_/adxx_ I/O
1305      - ctrl_pack/unpack cleaned
1306        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1307      - confined inclusion of AD_CONFIG.h to where necessary.
1308    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1309    
1310    checkpoint51p_post
1311    o create initial cd_code package
1312      - WARNING: the initialization of fields within packages
1313        is broken because INI_FIELDS (where READ_CHECKPOINT is
1314        called) is called *before* PACKAGES_INIT_VARIABLES.
1315        This seems to be backwards since
1316        1) its important to initially zero the entire field including
1317           the "halo" region
1318        2) zeroing needs to be done *before* reading pickup info
1319           and the pickup call might or might not happen in any
1320           particular run
1321      - this needs an overhaul for R2
1322    o cleanup verification/*/code/GMREDI_OPTIONS.h
1323    o cleanup testreport
1324    
1325    checkpoint51o_post
1326    o bringing AD-related verif's up to date with genmake2
1327      - carbon/
1328      - global_ocean.90x40x15/
1329      - hs.94.1x64x5/
1330      - (front_relax/ )
1331    o (more) consistent directory structure for AD-related verif.'s
1332    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1333    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1334    o bug fix in find_alpha.F for MDJWF:
1335      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1336        change rho -> rho-rhoConst
1337      - replace call find_rho to find_rhonum
1338    o initialisation of rFlx extended to full array (required by TAF)
1339      and shifted to thermodynamics
1340    o removed PTRACERS.h in ptracers routine
1341    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1342    o Correcting initialisations for fVerU, fVerV.
1343    o helping TAF to recognize dependency on kUp for
1344      fVerU, fVerV
1345    o Replacing delZ by delR in pkg/ctrl/
1346    checkpoint51o_pre
1347    
1348    o undid all of cp51 pending some cleanups and discussion
1349    o added the [#include "AD_CONFIG.h"] statement to all files that need
1350       it for adjoint/tl #defines
1351     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1352     o removed tools/genmake since it no longer works
1353    
1354    checkpoint51n_post
1355    o modifications to make FREEZE flux visible to pkg/kpp
1356      - moved surfaceTendencyTice from pkg/seaice to main code
1357      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1358      - subroutine FREEZE now limits only surface temperature
1359        (this means new output.txt for global_ocean.90x40x15,
1360         global_ocean.cs32x15, and global_with_exf)
1361    o added surface flux output variables to TIMEAVE_STATVARS
1362    
1363    checkpoint51n_pre
1364    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1365    o added [#include "AD_CONFIG.h"] to all files that use the following
1366      defines:
1367      - ALLOW_ADJOINT_RUN
1368      - ALLOW_TANGENTLINEAR_RUN
1369      - ALLOW_ECCO_OPTIMIZATION
1370    
1371    checkpoint51m_post
1372    o incorporating changes to get TAMC/TAF working in genmake2
1373      - added new TAMC/TAF targets to the Makefile
1374      - various cleanups related to package handling
1375      - these changes should have no impact on the forward model
1376    
1377    checkpoint51l_post
1378    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1379     - faster algorithm for cal_addtime.F
1380     - higher precision arithmetic, where needed
1381     - pkg/exf *startdate variables changed from calendar date to
1382       model integration time
1383    
1384    checkpoint51l_pre
1385    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1386    o enable to apply restoring on S & T only in a latitude band.
1387    o update output (external_forcing_surf modif. change truncation errors)
1388       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1389    
1390    checkpoint51k_post
1391    o change default to: useNHMTerms=.FALSE.
1392     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1393       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1394     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1395        exp1, ideal_2D_oce
1396     - change data file of oceanic exp (leave the results unchanged for now)
1397       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1398    o set gravitySign automatically according to the vertical coordinate used
1399      (and change sign: back to "logical" value: +1 when R increases downward)
1400    o added an include barrier to the default CPP_OPTIONS.h and
1401      removed the #include "PACKAGES_CONFIG.h" from it
1402    o fix a bug in mom_fluxform (from chk51j_post)
1403    
1404    checkpoint51j_post
1405    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1406    o adjusted some flow directives (dynamics, thermodynamics)
1407    o added cubed-sphere case to test cost function
1408    o heckpoint_lev?_directives.h now include
1409      pkg-specific directives, whenever those are enabled.
1410    o Moving pkg-specific flow directives to corresponding pkg
1411      Moving pkg-specific differentiation list to corresponding pkg
1412      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1413      ---> conventions are
1414           - pkg_ad.flow
1415           - pkg_ad_diff.list
1416           - pkg_ad_check_lev?_dir.h
1417    
1418    checkpoint51i_post
1419    o merge of the branch-genmake2
1420      - knowingly breaks the older genmake
1421      - automatic generation of all ALLOW_${PKG_NAME} defines
1422      - new testreport supersedes older testscript
1423    o large number of package inclusion and header cleanups
1424    checkpoint51i_pre
1425    
1426    o new output for adjoin of global ocean vector invariant
1427    o fix for checkpoint of thermodynamic seaice and bulk_force
1428    o Steph gchem various cleanups
1429    
1430    checkpoint 51h_pre
1431    o fixed some single quotes
1432    o modify gchem pkg to be more versatile
1433    o modifications to clean up dic pkg
1434    o add pkg/cfc
1435    
1436    checkpoint51g_post
1437    o provide links for ARPACK and ADM*TLM
1438    o start removing verification/vero/
1439    o update AD-related stuff
1440      (in particular some IF-statements in model/src/ routines)
1441    o adding to verification/global_ocean.90x40x15/ adjoint of
1442      vector invariant setup
1443    
1444    checkpoint51f_post
1445    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1446    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1447      of tracer Green's fucntions for ocean inversion project.
1448    
1449    checkpoint51f_pre
1450    o Added on-the-fly spatial interpolation capability
1451        "USE_EXF_INTERPOLATION" to pkg/exf.
1452      - This is a temporary Cartesian-grid hack until
1453        the super-duper ESMF coupler becomes available.
1454      - See verification/global_with_exf/README for usage example.
1455      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1456        flags and modified pkg/seaice accordingly.
1457    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1458        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1459        non-local transport term.
1460    
1461    checkpoint51e_post
1462    o pkg/mom_vecinv:
1463      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1464      - add time-ave diagnostic of vorticity advection.
1465    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1466    o atmospheric geopotential: - include water vapor effect;
1467                                - use p^kappa in p* scaling.
1468    o land pkg: read initial state from files.
1469    o AIM : add stratospheric drag in the upper level
1470    
1471    checkpoint51d_post
1472    o change function ILNBLNK (=> last non-blank char.) to return zero
1473      (instead of the string length) when the string. char is empty
1474    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1475    o modif's to restore TAMC compatibility
1476      - avoid "_d" constructs in PARAMETER declarations
1477      - avoid interrupting lines by comment lines
1478    o Use cluster local disks for purely local I/O
1479      vs. globally visible disks needed for ctrl stuff
1480      (merged from ecco-branch)
1481      - new active_file_loc... and mdsio_..._loc routines
1482      - affected packages: autodiff, ctrl, grdchk, mdsio
1483    
1484    checkpoint51c_post
1485    o introducing integer flag debugLevel
1486      - debLevZero: suppress all output
1487      - debLevA: standard
1488      - debLevB: equivalent to current debugMode=.TRUE.
1489    o introducing pathname variable mdsioLocalDir for mdsio
1490      that can be specified at runtime
1491      (relevant for cluster I/O to local disk)
1492    `
1493    >>>checkpoint51b_post
1494    adjoint of ptracers
1495    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1496    o extended state in checkpoint_lev?, etc.
1497    o alternative ctrl/cost with tr1 or ptracer
1498    o new comlev1_bibj_ptracers
1499    o new ptracers.flow
1500    o made ptracers_forcing same as external_forcing_s
1501    o added verification for adjoint with ptracers
1502      - adm. grdchk fail so far
1503      - tlm. grdchk OK
1504      - checked tapelev/comlev recomputations: OK
1505    <<<checkpoint51b_pre
1506    
1507    checkpoint51a_post
1508    o added code for biogeochemistry package
1509      - new pkgs: dic, gchem
1510      - new subroutine in ptracers
1511    o modify code for biogeo packages
1512      - in model/src and pkg/ptracers
1513    
1514    checkpoint51
1515    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1516      - autodiff, ctrl, exf, grdchk, seaice
1517      kept separate packages
1518      - cost, ecco, obcs
1519    o updating verification/internal_wave, verification/lab_sea
1520      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1521    
1522    checkpoint50i_post
1523    o Preparing next differentiable checkpoint and sync
1524      of MAIN vs. ecco-branch
1525      - 1st step: this one is differentiable
1526      - 2nd step: next(! not this) checkpoint will have updated packages
1527                  from ecco-branch)
1528    
1529    checkpoint50h_post
1530    o new package "land": provide surface BC for AIM.
1531    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1532    o AIM: use true log-P extrapolation for near surface temp (= as in
1533        F.Molteni paper) ; update aim.5l_cs output.
1534    o New variable in PARM03 for more flexible pickups
1535    o somewhat cleaned package initialisation sequence for
1536      ctrl/ cost/ ecco/ in packages_... routines
1537    
1538    checkpoint50g_post
1539    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1540      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1541      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1542        made the default because of faster convergence than ADI
1543    
1544    checkpoint50f_post
1545    o exf totally restructured
1546      - replaced all exf_set_ routines by one generic exf_set_gen.F
1547        and made sure it's still differentiable
1548      - split exf_getffields.F into new exf_bulkformulae.F
1549      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1550      - updated adjoint/makefile and relevant verif. accordingly
1551    
1552    checkpoint50f_pre
1553     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1554          + change Evap over land. (update aim.5l_cs output)
1555     o added missing .cvsignores and made uniform across expts
1556     o changed configuration of tidal_basin_2d expt
1557     o added pkg/debug functions for tracing code in fatal crashes
1558     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1559     o new fn in pkg/monitor to stop model if solution grows too big
1560     o removed lots of single quotes from comments
1561    
1562    checkpoint50e_post
1563    o make KPP work with PTRACERS
1564     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1565       nearly a copy of kpp_transport_s
1566     - there is no analogue to SurfaceTendencyS, so I have to use
1567       gPtr(of the surface layer) instead
1568    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1569    checkpoint50e_pre
1570    
1571    checkpoint50d_post
1572    o change kpp output from multiple-record state files to single-record state
1573      files analogous to write_state.F
1574    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1575      analogous to the cg2d-related output.
1576    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1577      so that writing to internal file fn (with length 512) fails.
1578    checkpoint50d_pre
1579    
1580    checkpoint50c_post
1581    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1582    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1583    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1584    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1585    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1586    
1587    checkpoint50c_pre
1588    Merging from release1_p13:
1589    o bug fix for pkg/seaice dynamic solver
1590    o Added SEAICE_initialHEFF to pkg/seaice
1591    
1592    checkpoint50b_post
1593    o store u*,v* in gU,V instead of in guNm1,gvNm1
1594    o in order to put the momForcing out of the Adams-Bashforth:
1595      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1596      to timestep.F
1597    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1598    o re-generate output for highly sensitive test-exp:
1599       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1600    
1601    checkpoint50b_pre
1602    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1603    o corrected CPP option mismatch in exf_Bulk... functions for case
1604      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1605    
1606    checkpoint50a_post
1607    o Bug fix for merging between c50 and KPP.
1608      ikey was passed from thermodynamics to kpp_calc via
1609      common block rather than being recomputed in kpp_calc,
1610      in contradiction with new key itdkey.
1611      New key ikppkey created, and tamc.h headers updated.
1612    
1613    checkpoint50
1614    - 2nd step of merge with ecco-branch:
1615      merge changes in ecco-branch back into main trunk
1616    - bug fix in find_alpha
1617    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1618    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1619    - merged some sliced AD support routines
1620    
1621    checkpoint49
1622    merged from ecco-branch:
1623    o exf:
1624      - Enable initialisation of forcing fields to constant
1625        (runtime) values.
1626      - in exf_getffields.F
1627        Reduce i-/j-loop to interior domain, discarding overlaps.
1628        That also fixes wrong TAF-key computations for key_1, key_2
1629        with bulf formulae.
1630      - exf_init.F modify #ifdef for exf_init_evap
1631      - exf_getffieldrec.F, ctrl_getrec.F
1632        The following INT-usages are not safe:
1633          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1634          fldcount = int(fldsecs/fldperiod) + 1
1635        and were modified.
1636    o autodiff: checkpoint_lev...
1637      - updated storing for bulk formulae (some arrays were missing)
1638      - added state for seaice package
1639      - synchronized with main branch
1640    o DIVA:
1641      Modif.s in
1642      - the_main_loop.F
1643      - the_model_main.F
1644      and added cost_final_restore.F cost_final_store.F
1645      o With these changes, it is possible to fully separate
1646        the first forward run to compute the cost function (mdthe_main_loop)
1647        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1648        into separate model executions.
1649        This enables better tuning of DIVA to given queue sizes.
1650      o Loss of cost function value in consecutive DIVA runs is
1651        fixed by storing to 'costfinal' file.
1652      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1653        beginning/end of adjoint integration is accounted for.
1654      The current changes apply to TAF-1.4.26.
1655      TAF has one remaining bug, requiring one manual change
1656      (see MITgcm manual).
1657    o cal: synchronized between MAIN and ecco-branch
1658    
1659    checkpoint48i_post
1660    o Changes to restore differentiability of code w.r.t. previous tag
1661      (mostly adding new routines to make list and replacing
1662      pressure by totPhiHyd).
1663    o Updated and merged grdchk package
1664      - has both ADM and TLM checks
1665      - works for single- and multi-proc.
1666      - output cleaned
1667      - worked successfully for parallel DIVA
1668    o genmake:
1669      - Adding -platform=SP4
1670      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1671    o Modif. for DIVA:
1672      ctrl_unpack should not be called in intermediate DIVA interval.
1673      (similar thing would apply for active files such as
1674      tbar, sbar, psbar, which should not be reinitialised;
1675      only relevant for ecco-branch)
1676    
1677    checkpoint48h_post
1678    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1679    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1680    o Added SEAICE_initialHEFF to pkg/seaice
1681    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1682    
1683    checkpoint48g_post
1684    --- EOS:
1685    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1686      store total Potential in totPhyHyd for diagnostics & EOS.
1687    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1688    --- Pressure/geopotential gradient:
1689    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1690    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1691      ( changes results of global_ocean_pressure )
1692    o NLFS + z-coord.: add eta*Rho' contribution.
1693    o accurate phiHyd when using interface-W at the middle between 2 centers
1694     ( changes results of ideal_2D_oce )
1695    o includes r* 2nd term in potential gradient.
1696    
1697    checkpoint48f_post
1698    Merging from release1_p12:
1699    o Modifications for using pkg/exf with pkg/seaice
1700      - improved description of the various forcing configurations
1701      - added basic radiation bulk formulae to pkg/exf
1702      - units/sign fix for evap computation in exf_getffields.F
1703      - updated verification/global_with_exf/results/output.txt
1704    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1705      (SBO) core products, including oceanic mass, center-of-mass,
1706      angular, and bottom pressure (see pkg/sbo/README.sbo).
1707    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1708      to avoid negative values in shallow regions.
1709      - updated verification/natl_box/results/output.txt
1710      - updated verification/lab_sea/results/output.txt
1711    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1712    o Added useSingleCpuIO option (see PARAMS.h).
1713    o Updated useSingleCpuIO option in mdsio_writefield.F to
1714      work with multi-field files, e.g., for single-file pickup.
1715    o pkg/seaice:
1716      - bug fix in growth.F: QNET for no shortwave case
1717      - added HeffFile for specifying initial sea-ice thickness
1718      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1719    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1720      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1721    o pkg/seaice:
1722      - adjoint-friendly modifications
1723      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1724    
1725    checkpoint48e_post
1726    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1727    o dynamics: change definition of computational domain & adapt mom_fluxform
1728      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1729    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1730        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1731        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1732        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1733        inverted_barometer solid-body.cs-32x32x1
1734      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1735    
1736    checkpoint48d_post
1737    o in preparation for r*:
1738     a) use pre-computed gradient of hydrostatic potential:
1739        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1740     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1741        => affects results of glob_oce_pressure (different truncation error)  
1742      update output.txt of ideal_2D_oce & global_ocean_pressure
1743    
1744    checkpoint48d_pre
1745    o in preparation for r*:
1746      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1747      pass the 2 comp. of the grad. as arguments to momentum S/R.
1748      but for the moment, only used if it does not change the results.
1749    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1750    
1751    checkpoint48c_post
1752    Modifications in treatment of initial flux forcing controls
1753    to avoid extra storing of flux fields.
1754    
1755    checkpoint48c_pre
1756    o Added tidal_basin_2d experiment (currently 1D!)
1757    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1758    
1759    checkpoint48b_post
1760    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1761     (modification to pressure gradient not yet implemented)
1762    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1763      (for U & V) that are used for vertical advection of momentum.
1764    
1765  checkpoint48a_post  checkpoint48a_post
1766  o In preparation for r*, use temp. array to compute vertical transport  o In preparation for r*, use temp. array to compute vertical transport
1767     in flux-form momentum pkg. => change results of few test-exp.     in flux-form momentum pkg. => change results of few test-exp.

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