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revision 1.123 by jmc, Fri Jan 24 17:55:25 2003 UTC revision 1.590 by heimbach, Tue Dec 13 19:53:52 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
8         and update lab_sea output.txt file.
9    o completing 3-dim. relaxation code: additional term
10         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
11      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
12      * At compile time, in "EXF_OPTIONS.h" set
13          #define  ALLOW_CLIMTEMP_RELAXATION
14          #define  ALLOW_CLIMSALT_RELAXATION
15      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
16          tauThetaClimRelax3Dim = 15552000.0,
17          tauSaltClimRelax3Dim  = 15552000.0,
18      * 3 cases:
19          1) Use a constant-in-time 3-dim. field
20          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
21          3) Real-time relax. to time-evolving prescribed field
22    
23    checkpoint57y_post
24    First step for a NLFS adjoint
25    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
26    o new init. routines for calc_r_star, calc_surf_dr
27    o still need to deal with ini_masks_etc
28    o testreport seemed happy
29    checkpoint57y_pre
30    
31    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
32    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
33    o add new offset feature to offline pkg (plus minor cleanup)
34    o cfc fixes for final year of integration
35    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
36      be in GCHEM_OPTIONS).
37    
38    checkpoint57x_post
39    o fix testreport Pb in multiple test experiment.
40    o cleanup our namelist syntax in verification:
41      - make it more F95 standards compliant (some work still needed)
42      - allows the vast majority of our tests to work with gfortran
43    o Non-Hydrostatic:
44     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
45     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
46    o Allow to apply AB on T,S rather than on AB(gT,gS):
47     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
48     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
49       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
50     - need a "clever" read_pickup to restart from the other AB formulation
51    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
52    o remove some unused variables (reduces number of compiler warnings)
53    o adjoint
54      * Disable useVariableViscosity for adjoint for time being
55        (there are a number of extensive recomputations)
56      * Initialize certain variables needed for adjoint
57    
58    checkpoint57w_post
59    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
60                 fix the singleCpuIO RS version of MDSWRITEFIELD
61       and add a WARNING if using globalFiles=T with multi-processors.
62    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
63      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
64    o tracer advection scheme:
65      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
66       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
67       was not very convenient).
68      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
69       (further tests needed for the implicit DST & Flux-Limiter schemes).
70    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
71      and sRef for convenience, handy, when you want to initialize
72      ptracers in a large domain with a constant non-zero value. Also,
73      untangle ptracers_init.F a little.
74    
75    checkpoint57v_post
76    o change dome exp. to use variable viscosity in side-drag terms.
77    o remove all the files from the cfc_offline test since they are now
78      incorporated into tutorial_cfc_offline which has been producing
79      identical results for a few days of testing
80    o add new parameter: sideDragFactor to enable half-slip-side BC
81      and change side-drag S/R to use viscosity from mom_calc_visc
82      (can switch back by setting sideDragFactor=0.); affects results at
83      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
84       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
85    o vorticity & strain are now computed without masking, to account for
86      no-slip-side BC in variable viscosity calculation ; mask is applied
87      anyway later on, before computing advection/coriolis terms.
88    o modify exp4 to test new obcs support for reading from external files
89      and for passive tracers
90    o fix behavior of ptracers_monitor when monitor output is written to a
91      netcdf-file; still not independent of monitor.F (writes in the same
92      file).
93    o change default value of tRef (put a uniform, meaningful value for ocean
94      & atmos) and initialize sRef (was missing, as Martin mentioned).
95    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
96      to be proportional to enstrophy dissipation length.  Thus,
97       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
98      This is now consistent with Smagorinsky and with the manual.
99    
100    checkpoint57u_post
101    o OBCS and PTRACERS: add open boundary support for passive tracers
102      - either use homogenous (pseudo) v.Neumann conditions or prescribe
103        OB-values from file; this is not different from the way theta and salinity
104        are treated
105      - however, Orlanski-radiation conditions are not supported, and the model
106        will stop if you use pTracers and Orlanski at the same time.
107      - beefed up the rountine obcs_external_fields_load: now only those open
108        boundary values are overwritten with values from files for which there
109        are really files, otherwise the OB-fields remain untouched. This makes
110        it possible to use different OBs at different ends of the domain (as
111        with EXF)
112    o reduce number of exch calls in shap_filt (s2).
113    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
114      truncation level) 4/5 MLAdjust test results (11&12 digits match).
115    
116    checkpoint57t_post
117    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
118    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
119      same truncation, independent of the face number: affects affects several
120      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
121    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
122      note that biharmonic viscosity + no-slip was not tested in any experiment.
123    o fix bug in non-linear free-surf side-drag ; generate new output for
124      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
125    o make mnc honor the writeBinaryPrec flag for most kinds of output
126    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
127    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
128      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
129    o add brackets in multi-terms sum to get same truncation, independent of
130      the face number (manage to get exactly same value of gU,gV at the cs-edge)
131      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
132    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
133      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
134      a maximum grid-scale Reynolds number.  Also, changes all length calculations
135      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
136      Suggested values of viscosity parameters found in mom_calc_visc.
137      Many new viscosity diagnostics available.
138    
139    checkpoint57s_post
140    o Add clearing-house for viscosity calculations, mom_calc_visc and
141      correct numerous bugs in LeithD and Smagorinsky discretizations.  
142      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
143      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
144      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
145      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
146      The Strain-Tension form is now called with useStrainTensonVisc=.true.
147      ViscAhStrain and viscAhTension are now retired.
148    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
149    o In response to JMC's bug report, genmake2 now ignores any soft-links
150      that it finds in the *current* directory when searching for files.
151      Soft-links found in any other source directories will still work as
152      they did before.
153    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
154      a C routine to unlimit the stack size
155    o mnc-ify pkg/aim snapshot vars
156    o mnc-ify pkg/land as requested by Daniel
157    o various changes to mnc including:
158      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
159      - output can now be grouped so that all files within a group
160          change the ITER portion of their names in lock-step together
161      - can now read ("global") PER-FACE (in addition to PER-TILE) files
162          and works with both EXCH1 and EXCH2 (but needs more testing)
163      - writing works for all verification test cases w/ g77 on Linux
164    
165    checkpoint57r_post
166    o make MNC variable initialization happen earlier
167    o add diagnostics for (almost) each term of the momentum Eq.
168    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
169    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
170    o remove MINIMAL_TAVE_OUTPUT option ;
171      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
172    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
173      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
174    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
175    o add time-dependent SST, SSS control
176    o cost terms in ecco/ modularized (new cost_generic.F)
177    o cost_averages routines are modularized (new cost_averagesgeneric.F)
178    o new infrastructure for seaice model vs. obs misfits in seaice/
179      * driver from the_main_loop.F is seaice_cost_driver.F
180      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
181      * gradient check in Exp. 6a of natl_box_adjoint/
182    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
183      (see README file)
184    
185    checkpoint57q_post
186    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
187    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
188      - bug was reported by Jean-Michel and Ian Fenty
189    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
190      update exp. cpl_aim+ocn output.
191    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
192      Needed for high-res. runs with large global files
193      to be able to limit tapelev size
194    o Changed some tests for adjoint:
195      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
196      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
197      * global_ocean.90x40x15/ back to default 3-level checkpointing
198    o Modifications to enable scripted COMMON to MODULE conversion
199      * verification/OpenAD/code/ has necessary scripts and description;
200      * converts, compiles and runs successfully;
201    
202    checkpoint57p_post
203    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
204    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
205      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
206    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
207    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
208      (was already the case for dissipation with mom_vecinv,
209       and also the case for grad.PhiHyd when staggered-timeStep)
210      This will allow to put dissipation out-off the AB time-stepping.
211     Unfortunately, affects truncation error. Update output of exp. that "fails"
212      (cg2d matching number) and leave the others for later: front_relax(10),
213      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
214      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
215    
216    checkpoint57o_post
217    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
218      (2) its ready to be documented during the 20050801 DocFest
219    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
220      for ideal_2D_oce and lab_sea on linux_ia32_g77
221    o set to #undef CTRL_SET_OLD_MAXCVARS_30
222      in global1x1_tot/code_seaice_adj to access indices 32, 33
223      (worth another tag)
224    
225    checkpoint57n_post
226    o adding precip control xx_precip 32
227    o adding swflux control xx_swflux 33
228    o Replacing 10 forcing penalty cost routines by 1 generic.
229    o Implementing partitioning in time-mean and variable adjustment
230      for atmos. state.
231    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
232    o in natl_box_adjoint:
233      * updated exp 1 to 10
234        (but does not have time-mean vs. variable split results yet)
235    o updated global1x1/*_seaice_adj/
236      to incorporate latest changes
237    o enable useSingleCpuIO for mdsio vector routines
238      (applies in particular to tapelev I/O)
239    o removed inefficient K-loop in all active_file*control*.F
240    
241    checkpoint57m_post
242    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
243      and advect_cs (use EXCH-2 and standard cs-32 grid files).
244    o pkg/exch2: filling of face-corner halo regions is optional
245      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
246    
247    checkpoint57l_post
248     tag before updating tutorials (pre-release-2)
249    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
250       for output and interpolation of input fields onto model grid)
251    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
252       Affects results of exp. rotating_tank ; update output.txt.
253    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
254          and taking the square quantity and/or using a fraction-weight field.
255    o fix aim_diagnostics_init.F mate numbers.
256    o add mnc output capability to diagnostics/diagstat and update
257      our cvsignore files for the ACSII output generated
258    
259    checkpoint57k_post
260    o lab_sea now uses diagnostics package and provides a suite of
261      new EXF diagnostics output.
262    
263    checkpoint57j_post
264    o exf
265      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
266        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
267        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
268      * extended diagnostics output
269        - now includes all EXF variables
270        - hs, hl moved to common block
271        - separate S/R for diagnostics, called after ctrl vector is added
272        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
273        - EXFqnet contains true Qnet (i.e. includes qsw)
274      * updated verif. lab_sea, global_with_exf
275      * Rearranging hflux (exf_mapfields -> exf_getforcing)
276        to ensure that diagnostics sees a true EXFqnet
277    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
278    o diagnostics pkg: change pointers so that 1 diagnostic can be used
279      several times with different frequencies.
280    o mnc-ify the thsice package as requested by Daniel Enderton
281      - the monitor--MNC output needs work
282      - many attributes need to be added (most are currently blank)
283    o mnc-ify theaim_v23 package as requested by Daniel Enderton
284      - many attributes need to be added (most are currently blank)
285    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
286    o add Sadourny like discretization to the 4th.O vorticity advection scheme
287    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
288      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
289         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
290    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
291     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
292    
293    checkpoint57i_post
294    o Diagnostics package was changed: diagnostic allocation is now deactivated
295      by setting an empty file name in the namelist (used to be by setting 0 frequency)
296    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
297      add 1rst Order upwind vertical Shear.
298    o add a quick fix for A/B checkpointing in OFFLINE mode
299    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
300      end-run around the C/Fortran linking horror in eesup/src/timers.F
301    o added pkg/runclock: allows user to terminate run based on wall clock
302    o added non-hydrostatic scaling parameter: nh_am2
303    o pkg/my82: futile attempt to make results compiler-independent by adding
304      some "_d 0", etc. no effect.
305    o for mnc output, fill the 'T' coordinate var with myTime and create a
306      separate 'iter' variable for iteration count
307    o pkg/diagnostics:
308      add new capability: output of Global/Regional & per-level statistics ;
309      tested against monitor output (including land & thSIce) on various exp.
310    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
311    
312    checkpoint57h_done
313      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
314      data.diagnostics, data.gchem, data.ptracers) is done.
315    
316    o pkg/diagnostics: prepare for Global/Regional statistics.
317      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
318    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
319      and rename it: DIFFERENT_MULTIPLE
320    
321    checkpoint57h_post
322    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
323    o pkg/diagnostics: change output frequency, now in seconds (instead
324      of Nb of iterations). This requires to change data.diagnostics.
325    checkpoint57h_pre
326    
327    o in mnc, let the user create the output dir if both mnc_outdir_date
328      and mnc_outdir_num are false
329    o add fflags() to pkg/diagnostics which allows one to specify, on a
330      per-file basis, the file precision [default behavior is unchanged]
331    o added diagnostics to pkg/kpp, including computation of mixed layer
332      depth based on a temperature/density criterion
333    o updated verification/natl_box to test the new pkg/kpp diagnostics
334    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
335    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
336    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
337      not mnc -- this mistake was found by JMC and is now corrected
338    
339    checkpoint57g_post
340    o add Adams-Bashforth 3rd Order time stepping:
341      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
342      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
343    checkpoint57g_pre
344    
345    o make lambda[Theta,Salt]ClimRelax spatially varying
346      (default remains spatially uniform constant based on tau)
347    o added new control variables
348      * init. uVel, vVel, etanN
349      * lambda[Theta,Salt]ClimRelax
350    o separate masks used for ctrl_pack/unpack 'from write_grid' output
351      (suggested by G. Forget)
352    
353    checkpoint57f_post
354    o add parameter "baseTime" = model base time = time at iteration zero
355      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
356      account for baseTime shift
357    o move Coriolis arrays from PARAMS.h to GRID.h
358    checkpoint57f_pre
359    
360    o mnc-ifying the seaice package
361    o introduced an alternative length scale calculation for use in the limiting
362      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
363    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
364    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
365      as well as grad(vort3).  Made it compatible with both approximate form
366      for the cubed sphere and full form of these gradients.  Added flag
367      useFullLeith to select between approximate and full form.  
368    o add "d0" in getcon.F to reduce differences between compilers/platforms
369      update output.txt of exp. fizhi-gridalt-hs
370    o change port_rand funtion to allow to set the seed.
371    o fix obscure MNC bug involving conversion between reals and integers
372      - it caused no problems with certain (eg. gcc, ifc) compilers but the
373        new version is now more standards-compliant
374    o adjoint-related modifications
375      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
376      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
377      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
378    
379    checkpoint57e_post
380    o Adding eddy stress controls a la Ferreira et al.
381    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
382    
383    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
384      update output.txt of exp. fizhi-gridalt-hs
385    o add more "Z" dimensions and associated coordinate vars to MNC
386    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
387    o parameter calendarDumps: when set, approximate months (30-31 days) and years
388      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
389      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
390      months and years.  Requires pkg/cal.
391    o diagnostics: add pickup functionality
392      - off by default for backwards compatibility
393      - current version only uses MDSIO -- MNC will be added
394    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
395    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
396    
397    checkpoint57d_post
398    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
399    o modify verification/ideal_2D_oce so that it tests the creation of mnc
400      output from the diagnostics package
401    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
402    o make genmake2 more portable by using ".$FS" instead of ".f" for more
403      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
404    o add coordinate variables to the MNC output from the diagnostics package
405    o change MNC-flags default value: true when useMNC=TRUE
406    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
407      the ability (off by default) to read the grid information using MNC
408    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
409    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
410    o do snap-shot diagnostics at the middle of the time-interval (instead of
411      at the end).
412    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
413      new test for AIM with thSIce + slab-ocean
414    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
415    o move state variable diagnostics to the beginning of the time step ;
416      (note: still needs some work specially for snap-shot diagnostics)
417      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
418    
419    checkpoint57c_post
420    o Change testing option (-ieee) to get closer agreement between g77 & ifort
421    o generate new output.txt files on faulks with g77 & the new -ieee option
422    checkpoint57c_pre
423    
424    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
425      update output.txt of exp. global_ocean.90x40x15
426    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
427      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
428    o add saltFlux(+File) forcing capability with periodicExternalForcing
429    o allow to use pkg diagnostics for GM-Redi & ThSIce output
430    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
431    o improvements for the MNC output from DIAGNOSTICS:
432      - correct handling of the unlimitied dimension
433      - all dims now have associated coordinate variables
434      - variables located at U, V, and Corner ("Z") points are now written
435        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
436        *all* data points are output
437    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
438    o added pkg/seaice/seaice_monitor.F
439    o mdsio_readfield.F can now read files visible only to master MPI process.
440    o pkg/seaice: some test code for ice-modified ocean stress
441    o exf_getffields interpolation defaults to bilinear for all scalar forcing
442      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
443      spurious negative numbers for precipitation and humidity.  Will cause
444      some small numerical differences for integrations using pkg/exf/exf_interp.F.
445    o pkg/ctrl/
446      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
447        May be enabled via doPackDiag
448      *  introduce z-scaling of
449         + gradient (doZscalePack) and
450         + control (doZscaleUnpack)
451    o pkg/mdsio/
452      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
453      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
454    
455    checkpoint57b_post
456    o simplify options in diagnostics_fill arguments (remove weird combinations)
457    o fix MNC coordinate variables so that they now contain per-face index
458      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
459      general, EXCH2 grids are only aligned to a "local" coordinate system
460    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
461    o Implement instantaneous output within pkg diagnostics:
462      setting a negative frequency in data.diagnostics produces
463     "snap-shot" output (as opposed to time-average if freq > 0)
464    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
465      NOTE: change ptracer diagnostics name: use 2 characters to work with
466            more than 9 tracers. Add also diagnostics of advect & diffus flux.
467    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
468      becomes the coordinate variable for the 'T' dimension
469    o add CF-style coordinate variables to MNC
470      - just a first cut:  numbers are meaningless on the cubesphere and
471        missing along the T axis but otherwise it works!
472    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
473    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
474    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
475      this is based directly on what the model compute, so that the content of
476      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
477    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
478    o clean up build options files for SunOS, in particular
479      - remove -traditional from xmakedepend
480      - change -xarch=v9 to -xarch=native for f77
481      - restore use of make (not gmake)
482      - add CC=gcc if using g77
483    o changes per discussion of AM, JMC, & EH3 today:
484      - move redundant "grid" variables out of "state" -- in preparation of
485        creating proper CF-style coordinate variables and in recognition
486        that any/all grid variables can be easily copied (eg. w/NCO) from
487        the grid files into any of the other NetCDF files
488      - *always* output grid variables with MDSIO (this will eventually be
489        changed)
490      - output MNC grid file if useMNC is true
491    o every instance of _END_MASTER() has been found and replaced with
492      _END_MASTER( myThid ) in order to satisfy certain picky Sun
493      preprocessors
494    o re-arrange diagnostics pkg initialisation:
495     - allow each package to extend the available diagnostics list
496     - add some checking and fix small problems (multi-threaded, ...)
497     - new S/R diagnostics_fill (replace fill_diagnostics):
498       look through the short list of active diag. (instead of the long list)
499       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
500    
501    checkpoint57a_post
502    o this set of changes restores TAMC compatibility
503      tested for global_ocean.90x40x15 adjoint on trough
504      (what a pain)
505    
506    checkpoint57a_pre
507    o some modifs in tools/build_options for sunos
508    o call ctrl_pack for ctrl at end for optimcycle=0
509    
510    checkpoint57
511    o add horizontal bi-harmonic viscosity for vertical velocity
512      - new parameter viscA4W (defaults to viscA4)
513      - affects only non-hydrostatic code
514      - to be done: no-slip lateral boundary conditions
515    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
516    o implement Implicit Vertical advection for pTracers
517    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
518      (implemented also for implicit vertical diffusion & advection)
519    o OBCS: extend application of tracer open boundary conditions
520      to a strip beyond the boundary of width Olx/Oly
521    o add call monitor to TAF set of required calls (flow directives)
522      and include in natl_box_adjoint
523    o untangle a few ifdefs related to cost, ctrl, autodiff
524      untangel a few ALLOW_ECCO_OPTIMIZATION
525    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
526      (theta2, salt2 in ecco_cost_weights)
527    
528    checkpoint56c_post
529    o OBCS as control variables
530      - update ctrl_ad_diff.list, obcs_ad_diff.list
531      - remove balance of obcs controls from default
532      - fix index bug nobcs in ctrl_init
533      - fix dummy fields filen in ctrl_pack
534      - add dummy weights for obcs
535    o lsopt: comment out fort.94 output
536    o optim:
537      - remove unnecessary header files
538      - adjusted namelists
539      - add xerbla.F to Makefile
540    o exf:
541      - multiple modifications of exf_check_range
542      - unit change in exf_init_runoff from [m/year] to [m/s]
543    o mdsio:
544      - i/o-vector change debugLevel from debLevA to debLevB
545    
546    checkpoint56b_post
547    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
548      is called from DO_THE_MODEL_IO
549      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
550      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
551      - clean up PTRACERS_WRITE_TIMEAVE a little
552    o add another verification experiment that tests both the cfc-pkg and
553      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
554      reactive tendencies treated inline with regular timestepping
555    o testreport previously did a lousy job of comparing small numbers, so
556      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
557      implemented in the little c-progam tmp_cmpnum.c which is embedded in
558      testreport.
559    o ptracers_monitor: bug fix for MPI
560    
561    checkpoint56a_post
562    o GCHEM: finish reorganizating the package
563      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
564        (introduces another 3D-array for each passive tracer, but only if
565        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
566        gchemTendency is not needed because the timestep is done separately)
567      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
568      - GCHEM is now---more or less cleanly---separate from PTRACERS
569      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
570        so clear to me how that should be done in a general way.
571    o CFC: improve formatting of output in CFC_ATMOS
572    o PTRACERS:
573      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
574        that ALL experiments with ptracers enable can be checked. This makes
575        GCHEM_MONITOR obsolete.
576      - include a runtime parameter PTRACERS_monitorFreq that defaults to
577        monitorFreq
578      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
579    o add PTRACERS (PTR0[1-5]) to testreport output
580    o exf_check_range:
581      * default changed to .TRUE.
582      * will check values for niter0 if debLevA, every timestep if debLevB
583      * STOP in exf_check_range if 'out of range'
584      * range chosen generous to allow for potential extema
585      TBD: a version with stricter range
586           permitted range would be runtime parameters
587    o GMredi:
588      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
589      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
590      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
591    o GCHEM:
592      - move call to GCHEM_FORCING_SEP, so that it is now called before
593        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
594      - introduced a useGCHEM runtime flag and applied it everywhere.
595      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
596        this flag is now only visible within GCHEM-pkg routines.
597      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
598        be replaced by a 3D array that is computed before thermodynamics; for
599        this, the tracer ID iTracer had to be included into the parameter list
600        of ptracers_forcing
601      - set up forward_step to call gchem_forcing, that will replace
602        gchem_forcing_int in ptracers_forcing
603      - cleaning up
604    o small cleaning of exch2: remove files that are also in eesupp/src
605    
606    checkpoint56
607    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
608    o mnc: cleanup "full" files--fixes out-of-memory problem
609    o ECCO-GODAE
610      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
611      * fully merged and updated from SIO code
612        windstress sign change affects
613        - exf_inscal_[u/v]stress
614        - sign of xx_tau[u/v] adjustments
615        - signs in cost_scat
616      * ctrl_get_gen: avoid update of tau[u/v] for first few days
617      * natl_box_adjoint updated and compressed
618      * 2-level checkpoint switch added
619        (tested in EXP. 1 of natl_box_adjoint)
620      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
621    o SVD
622      * first complete, non-hacked version for SVD calculations
623      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
624        performed via direct access files admtlm_vector.it????
625        (via ctrl_[un]pack)
626      * optimcycle is used for ARPACK iteration counter
627        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
628      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
629        and add linear transforms where necessary
630      * controls are initial/final SST, SSS (can be extended; need to check
631        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
632    o mdsio: filename info to both stderr, stdout
633    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
634      from sign change
635    
636    checkpoint55j_post
637    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
638      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
639    o add consistent build directories and .cvsignore files to verification
640    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
641    o make all subroutines 30 or less characters in length for certain older
642      compilers to work (a thorough search only turns up two routines in
643      pkg/ptracers)
644    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
645      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
646    
647    checkpoint55i_post
648    o change arrays for total vertical diffusivity (2.D if explicit,
649      3.D if implicit) ; each ptracer uses its own background value.
650    o added mnc/NetCDF output capability to ocn_compon_interf
651      - added bits to verification/cpl_aim+ocn so that it can run on
652        ITRDA and other clusters without the mpirun "-wd" option
653    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
654      configuration
655    o give MNC the ability to create additional files rather than
656      exceeding a specified file size limit "MNC_MAX_FILESIZE"
657      - the default is just less than 2GB which is a practical limit
658        on many systems
659    o Compute the non-local term using either KPP vertical diffusivity (=default)
660       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
661    
662    checkpoint55h_post
663    o add verification test "vermix"
664    o remove all the *_ioinc flags and replace with the single global
665      outputTypesInclusive flag
666    o allow to set a vertical profile of vertical diffusivity for T & S
667    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
668    o useMNC moved from data.mnc to data.pkg
669    
670    checkpoint55g_post
671    o Renaming carbon AD experiments to comply with testreport conventions
672    o Updating adjoint of Held-Suarez hs94.1x64x5
673    o Fixing directives for non-ECCO forward_step, after ECCO directives
674      have been fixed to avoid recomp. of do_oceanic_phys
675      Works well for global_ocean.90x40x15,
676      but recomp. issue remains for carbon
677    o Updating adjoint output for natl_box_adjoint after
678      pkg/ecco has been modified (see taga c55d_post)
679    
680    checkpoint55f_post
681    o rename to timeave_init_fixed
682    
683    checkpoint55e_post
684    o some delicate re-shuffle of store directives to avoid one
685      extra call of do_oceanic_physics
686      affects ecco_the_main_loop.F, do_oceanic_physics.F
687      checkpoint_lev1_directives.h
688    o NB: this may break global_ocean adjoint temporarily,
689      but it is clear how to fix it. Will do later, need this now.
690    
691    checkpoint55d_post
692    o ECCO specific cost function terms (up-to-date with 1x1 runs)
693    o ecco_cost_weights is modified to 1x1 runs
694    o modifs to allow observations to be read in as
695      single file or yearly files
696    o enable to read exf forcing fields as either
697      single file or yearly files (flag useExfYearlyFields)
698    checkpoint55d_pre
699    
700    o switch between 2-level and 3-level checkpointing
701    o add ability of MNC to write local and "partial" (eg. 2D slices where
702      the full 3D field is never actually stored) arrays to NetCDF files
703      with the correct (that is, the complete multi-dimensional) set of
704      array indicies
705      - used in mom_vecinv() to write the diagFreq output
706      - tested (demonstrated) in verification/aim.5l_cs
707    o further mnc-ification
708      - add verification/lab_sea to the list with mnc setups
709      - fix undefined mnc v-names in cd_code
710      - add kpp to mnc output (both snapshot and timeave)
711    o non-hydrostatic code
712      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
713        in calc_gw.F
714      - defaults to viscAh
715      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
716        friction or Leith) in non-hydrostatic mode, as long as there is
717        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
718    o pkg/cost
719      extend simple cost functions to treat time mean quantities
720      (T,U,V) via cost_accumulate_state from cost_tile
721    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
722        be 2 times larger than the minimum size the advection scheme requires.
723        now get a perfect conservation of salt in advect_cs test-exp (updated)
724    o GGL90 (Gaspar's TKE mixed layer)
725      - add horizontal diffusion of TKE, requires exchanges in
726        do_fields_blocking_exchanges, horizontal diffusivity is zero by
727        default. In OPA there is no horizontal diffusion of TKE but the
728        mixing coefficients are computed from a horizontal average of TKE of
729        6 points or so. I think that diffusion has a little more physical
730        justification.
731      - clean up ggl90_calc in the hope of reducing memory usage (this hope
732        was in vain)
733      - mask tke-variable in ggl90_init
734    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
735    o fix biharmonic diffusion on CS-grid.
736    o more obcs stuff
737      - added obcs_external_fields_load as an alternative to the EXF-pkg option
738        for reading boundary values. This routine is called from
739        obcs_prescribe_read
740      - updated obcs_check
741      - changed sponge layer relaxation parameter units for days to seconds
742      - turned off sponge layer by default
743      - changed argument list of OBCS_CALC to myTime+deltaTclock
744      - fixed about 35 bugs in obcs_external_fields_load
745    
746    checkpoint55c_post
747    o obcs stuff
748      - new runtime flags useOBCSprescribe, useOBCSbalance
749      - re-arranged obcs_calc
750      - moved exf_getobcs to obcs_prescibe_read
751        obcs_prescibe_read is called after ORLANSKI stuff
752        and independent of it (executable can contain all).
753      - updated obcs_check
754      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
755        These may be necessary only if tangential velocities are
756        prescribed at OB, not sure, needs testing.
757    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
758      which simplifies the calls and passes the ifc check-bounds test
759    
760    checkpoint55b_post
761    o add a 2D scalar, Z location, exchange_2 routine.
762    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
763      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
764      affects advect_cs results (for the wrong reason): update output.txt
765    o use a more standard discretization for biharmonic viscosity ;
766     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
767      affects results of dome set-up: update output.txt
768    o fix gad_advection.F (CubedSphere part), back to version 1.23
769    o fix bug in mom_vi_del2uv.F (CubedSphere part).
770    
771    checkpoint55a_post
772    o merged code to
773      * prescribe/read time-dependent open boundaries
774        (works in conjunction with exf, cal)
775      * sponge layer code for open boundaries
776      * each boundary N/S/E/W now has its own CPP option
777        (healthy for the adjoint)
778    
779    checkpoint55
780    o up-to-date adjoint of previous breaks
781      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
782      - global_ocean_ebm: adjoint still needs fix (TLM ok)
783      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
784      - carbon: * remove tr1-related adjoint verification
785                * add ptracer as control variable
786    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
787      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
788    
789    checkpoint54f_post
790    o in verification/carbin/ remove experiment related to
791      ALLOW_PASSIVE_TRACER (array tr1 etc)
792      code_ad/ input_ad/ results_ad
793    
794    o add two new packages
795      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
796        + subject to optimization (memory)
797      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
798        + subject to reordering (many GOTOs in the original code)
799        + so far opps is called for every (i,j) point, and then operates in
800          the vertical; one may want to reorder the scheme in order operate in
801          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
802          fields)
803    o overhaul of IO so that we now have flags for MDSIO and/or MNC
804      - all verification tests compile and run with linux_ia32_g77
805      - defaults are compatible with current input files--nothing
806        should change if you were not previously using MNC
807      - MNC output has been added in numerous places (eg. timeave)
808        but there are still a few writes not yet do-able with MNC
809        (this is in progress)
810      - flags now allow for either/or/both use of MDSIO and MNC and
811        documentation will soon follow
812      - numerous small formatting cleanups for ProTeX
813    o add version info (via BUILD_INFO.h) to MNC and stdout
814    
815    checkpoint54e_post
816    o add two new packages
817      - pp81 (Packanowski and Philander, 1981), Richardson number and
818        stratification dependent mixing
819      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
820      - these scheme operate in a similar manner as KPP (without ghat, of
821        course), however there is only one diffusivity that is used for both
822        temperature and salinity (and passive tracers)ç
823    o add offline package
824    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
825      provided by Stephanie Dutkiewicz
826    o genmake2: add ability to search for C compilers and cleanup test output
827      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
828    
829    checkpoint54d_post
830    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
831    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
832      leading to additional shift by 5 days each year of integration
833       (i.e. leading to considerable offset over the years)
834    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
835    o start with no AB and no initial filtering (staggerTimeStep):
836      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
837    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
838      (external loading & cpl import/export stay in forward_step.F)
839    o update coupling interface to work with new staggerTimeStep
840    o change MDSIO ptracers_pickup.
841    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
842    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
843    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
844    
845    checkpoint54c_post
846    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
847      this affects (truncation error) output.txt of test-exp:
848       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
849    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
850    o change Qnet to always be the net heat flux, (+upward).
851      affects (truncation error) output of natl_box exp.: updated
852    o define the max number of passive tracers in PTRACERS_SIZE.h
853    o start to test mnc routinely in exp0
854    o add sea-ice loading (sIceLoad) as a new forcing field.
855    
856    checkpoint54b_post
857    o add testreport "-j JOBS" option for parallel builds (tested and pretty
858       impressive on Altix and Opteron systems)
859    o diagnostics can now write NetCDF files through the mnc package
860    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
861    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
862    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
863      affects (truncation error) output of lab_sea & natl_box exp.: updated
864    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
865    
866    checkpoint54a_post
867    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
868    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
869    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
870    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
871      + internal_wave (shift in writing cg2d_ini_res)
872    checkpoint54a_pre
873    
874    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
875      - modified verification/lab_sea and natl_box_adjoint accordingly
876    
877    checkpoint54
878    checkpoint53g_post
879    o prepare splitting of thermodynamics: store convect.counter in common block
880    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
881      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
882    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
883    o new parameter "nShapS": allow to treat differently S from T (nShapT)
884    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
885    o restore adjointability
886    
887    checkpoint53f_post
888    o modifications that affect AIM experiment results (update output.txt):
889      - no advection of S at top interface Nr (pkg/generic_advdiff)
890      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
891    o AIM pkg:
892      - include stability function into surf.Flux derivative relative to Tsurf
893      - calculate clear-sky radiation & surface temp. change (for diagnostics)
894    
895    checkpoint53e_post
896    o merged cylindrical coord configuration
897    o added rotating_tank experiment
898    checkpoint53e_pre
899    
900    checkpoint53d_post
901    o faulks upgraded: re-generate output.txt that have changed:
902       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
903    o Added Bryan and Lewis, 1979, vertical diffusivity profile
904    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
905    o added Sadourny discretization of Coriolis
906      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
907      - re-enabled use of omega3 (useAbsVorticity)
908    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
909      vector-invariant equations
910      - note: does *NOT* yet use same variable visc. for no-slip BC's.
911    o recoded the lateral boundary conditions for non-hydrostatic w, this time
912      hopefully without new bugs
913      - still to do: biharmonic friction for non-hydrostatic w
914    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
915    o regenerated output for global_ocean_ebm (using -ieee)
916    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
917      of mom_common/
918      - simple re-arrangement of instructions within computing loop
919    checkpoint53d_pre
920    
921    checkpoint53c_post
922    o new version of coupler for AIM+thSIce and Ocean models
923     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
924     - land: change Evaporation of snow
925     - aim with thSIce: fix bug in snow-precip.
926    o changes to calc_gw.F
927     - bug fix for w^2 term near the bottom boundary
928     - (hopefully) improve the lateral slip boundary condtions for use with
929        partial/looped cells
930      - because the bug fix changes two verification experiments anyway (exp5
931        and plume on slope), change the lateral boundary condition from half slip
932        to the value of no_slip_sides
933    o ebm package wasnt quite up to the parallel task. Fixed that.
934    o Adjoint of EBM package + verification
935      * TLM OK
936      * ADM not sufficient accuracy yet (needs further testing)
937    
938    checkpoint53b_post
939    o Commiting new energy balance model to repository
940      * package is pkg/ebm
941      * verif. is verification/global_ocean_ebm
942      * references are in ebm_driver.F
943    C      * X. Wang, P. Stone and J. Marotzke, 1999:
944    C        Global thermohaline circulation. Part I:
945    C        Sensitivity to atmospheric moisture transport.
946    C        J. Climate 12(1), 71-82
947    C      * X. Wang, P. Stone and J. Marotzke, 1999:
948    C        Global thermohaline circulation. Part II:
949    C        Sensitivity with interactive transport.
950    C        J. Climate 12(1), 83-91
951    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
952    C        Destabilization of the thermohaline circulation
953    C        by atmospheric eddy transports.
954    C        J. Climate 7(12), 1870-1882
955    o Will need long integration testing.
956    checkpoint53b_pre
957    
958    o created pkg/mom_common in preparation for variable viscosity code
959    o renamed and split ini_mnc_io
960    o pkg/land: only liquid water can diffuse or run-off
961    o AIM using land: soil wetness availability account for snow
962    o added printMapIncludesZeros to EEPARMS namelist
963    
964    checkpoint53a_post
965    o restore TAMC compatiility for exf_constants.h
966      (no usage of _d in .h)
967    o Additional storing in KPP in an attempt to fix
968      TAMC problem with adjoint of KPP code.
969      (no success...)
970      Identical code works fine with TAF.
971    o Fixed verification/natl_box_adjoint experiments.
972      Initial conditions for Experiments 4 and 5 are now
973      set to "SEAICE_initialHEFF=0", which is more reasonable,
974      and hence gives results closer to that of Experiment 2.
975      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
976    
977    checkpoint53
978    o stable checkpoint with up to date adjoint
979      TLM tests only run for 1st grdchk at the moment. Its unclear if
980      this is a code problem or a problem with resetting code for g_
981      variables that is being autogenerated wrong.
982      Otherwise:
983       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
984       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
985         are both still in chaos following their security messes.
986    
987    checkpoint52n_post
988    o various build (mostly genmake2) changes including:
989      - ability to build/run more easily within Cygwin and MacOS X
990      - more complicated Makefiles with a stronger dependence on Gnu Make
991    o pkg/seaice modifications
992      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
993        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
994        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
995      - changed proxy for geostrophic velocity and updated
996        verification/lab_sea/results/* accordingly
997      - removed ADI dynamic solver from pkg/seaice
998      - replaced all occurrences of 1/CSTICE or 1/CSUICE
999        they caused a segmentation fault under certain circumstances
1000      - removed unused field WATR
1001    o bug fix in exf-package:
1002      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1003         now reflect that.
1004    o small fixes in the cal-package:
1005      - set reference date to first of January for the 'model'-calendar
1006      - failing of cal_CheckDate in cal_FullDate now actually results in a
1007        warning
1008    o small modifications in exf-package to increase flexibility:
1009      - change climtempfreeze from a constant to a runtime parameter that
1010        is specified in data.exf_clim (default = -1.9)
1011      - introduce runtime parameter windstressmax (default = 2.0) that is
1012        specified in data.exf
1013    o fix in pkg/thsice:
1014      - update Evap (Tsf changes) to be consistent with Latent heat flux
1015      - maintain snow precipitation unchanged (even if Tsf >=0).
1016     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1017    
1018    checkpoint52m_post
1019    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1020      this does not change any of the results, because myIter=0 in swfrac always
1021      lead to jwtype=2 (the default anyway), but the call makes little sense
1022      as a default
1023    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1024    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1025      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1026    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1027    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1028    o extending useSingleCpuIO option to work with new exch2 I/O format
1029      - old-style, missing-tile I/O is still accessible by defining CPP
1030        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1031    o monitor package can write to NetCDF files and/or STDOUT
1032    o fix re-definition bug in MNC_GRID_INIT_ALL()
1033    o doc/api_reference added
1034      - a framework for building an API Reference Manual using all
1035        the "protex" comments embedded in the code
1036      - see pkg/generic_advdiff, pkg/mnc for examples
1037    o MNC:
1038      - make myThid the last argument for all subroutines
1039      - new default for the grid files: NO halos
1040      - add useMNC and other run-time flags
1041      - separate per-file-group handling of the unlimited dimension
1042      - early initialization of MNC w/ flags read at the eeboot stage
1043        and lookup tables set in initialize_fixed
1044      - write all MNC output to a freshly-created directory
1045    o thermodynamics sea-ice (thsice) is now tested with testreport.
1046    o test exp. advect_cs: use the standard cs32 grid ; update output.
1047    o Added functionality to grdchk:
1048      pick global i,j,k position (or nearest wet) where to perform check.
1049    
1050    checkpoint52l_post
1051    o new land formulation:
1052      a) use ground enthalpy as prognostic variable to ensure exact
1053         energy conservation.
1054      b) account for water temperature and for latent heat of freezing
1055         in all processes (rain, run-off, ground storage)
1056      c) compute surface and ground temperature implicitly.
1057    o aim_v23 modification for new land model:
1058      a) Treat separately land / ocean / sea-ice surface fluxes
1059         to allow implicit computation of land & sea-ice surface temp.
1060      b) add snow precipitation.
1061    checkpoint52l_pre
1062    
1063    o fix problem (when 1 tile is empty) in min/max monitor.
1064    o fix bug in timeAve (u,vZetatave in common block)
1065    o no restoring terms under ice for pkg/seaice
1066    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1067    o bug fix for pkg/seaice pickups
1068    o change MNC call locations and add coordinate attributes
1069    o mask vorticity at the corner ; affects global_ocean.cs output
1070    o fix ini_curvilinear_grid ; test CS experiments with mpi
1071    o aim.5l_cs: modify sea-ice fraction input file ; update output
1072    o exf: Adding simple range check routine for exf fields after read
1073    
1074    checkpoint52k_post
1075    o removed top-level directory "diags"
1076      - we migrated these functions to pkg/timeave a long time ago
1077    o fixed bug introduced in pkg/monitor
1078    o accuracy ctrlprec = 32 insuffient for gradient checks using
1079      averaged fields (I/O via cost_averages)
1080      -> use ctrl.h in active_file*.F to control I/O precision.
1081    o paramter list of CALL ADTHE_MAIN_LOOP
1082    o added initial do_the_model_io to ecco
1083    o set all ...Freq to zero after cost_final
1084      taveFreq, dumpFreq, pChkptFreq
1085    o MAIN and ECCO differentiability restored
1086    
1087    checkpoint52j_post
1088    o fix nchklev in tamc.h for global_ocean...
1089    o Bringing flow and store directives up-to-date
1090    o Really weird thing!
1091      call do_the_model_io from the_main_loop with parameters
1092      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1093      TAF places a faulty re-call of initialise_varia
1094      after cost_final call which should not be there!
1095    checkpoint52j_pre
1096    
1097    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1098      error messages
1099    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1100    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1101      debug output
1102    o modfied mdsio_writefield.F to handle non-global files under exch2
1103    o update AIM Cubed-Sphere exp (aim.5l_cs):
1104      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1105    o update AIM Equatorial Channel exp:
1106      use standard aim_v23 pkg and change the SST fields to be more realistic.
1107    o globalFile now works with exch2
1108    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1109      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1110    o limit timeave output for hi-res integrations
1111    
1112    checkpoint52i_post
1113    o removed CPP_EEOPTIONS.h from verification/*/code
1114    o updated the tiling for global_ocean_pressure
1115    checkpoint52i_pre
1116    
1117    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1118      the old pkg/aim).
1119    
1120    checkpoint52h_pre
1121    o shortened offending lines in exch2_send_rx?.template
1122    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1123    o genmake2: add build & execute test for NetCDF code
1124    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1125      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1126    o added useSingleCPUIO flag to monitor.F and mon_out.F
1127    o added temporary hack for sea-ice dynamics on the cube:
1128      metric terms are ignored and it is assumed that
1129      there is no sea-ice on cube faces 1, 2, 4, and 5.
1130    
1131    checkpoint52f_post
1132    o added exch2 cube routines to pkg/exch2
1133    o modified hs94.cs-32x32x5 to use it
1134    o added new grid files to hs94.cs-32x32x5
1135    checkpoint52f_pre
1136    
1137    checkpoint52e_post
1138    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1139      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1140    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1141      to work with implicit vertical advection and AB ;
1142    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1143    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1144     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1145    checkpoint52e_pre
1146    
1147    o fix bug in impldiff when Nr=1 or Nr=2.
1148    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1149    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1150    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1151      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1152    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1153    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1154    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1155    
1156    checkpoint52d_post
1157    o re-tiled many expts to allow comparison in multi-processor mode
1158      - updated output accordingly
1159      - changed hs94.128x64x5 to use intial T from file rather than use the
1160        random number generator
1161    o add infrastructure in model routines for fizhi and gridalt packages
1162    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1163    o changes to permit hi-res, cubed-sphere, configuration
1164      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1165      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1166      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1167        of surface winds for the cube
1168      (A verification experiment, based on global_ocean.cs32x15, but with
1169       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1170       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1171       complete with example surface forcing files and matlab scripts to look
1172       at the output and compare it with that of global_ocean.cs32x15.)
1173    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1174       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1175       to conform to the common rule.
1176    o check-in the first version of the coupler + interfaces for multi-components
1177       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1178       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1179       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1180       - ocean and atmos. share the same horizontal grid (no interpolation).
1181       - exchanges between component and coupler is done in forward_step
1182    o new verification experiment, cpl_aim+ocn:
1183       coupled ocean - AIM atmosphere on cs32 grid.
1184    
1185    checkpoint52d_pre
1186    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1187    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1188    
1189    checkpoint52c_post
1190    o Fixing OPTIONS files for use of exf:
1191      - ALLOW_ECCO not needed
1192      - ECCO_CPPOPTIONS.h should not be included from
1193        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1194        as has been the case in the past
1195      - All cal/exf related options are currently set in
1196        single header file. Should remain so until we
1197        agree on a consistent new policy.
1198    o Removed all CPP options for cal package.
1199      cal has no more CPP options.
1200    o modified STOREs in GAD_ADVECTION
1201    o corrected key comp. for passkey
1202    
1203    checkpoint52b_post
1204    o new version: "thsice" of thermodynamic sea-ice pkg:
1205     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1206     - modify fluxes but do not change theta directly;
1207     - light cleaning of bulk_force pkg (still needed with thsice).
1208     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1209       + output_thsice.txt to test thsice & bulk_force pkgs.
1210    o put back grid & coriolis monitor output.
1211    checkpoint52b_pre
1212    
1213    o call "do_the_model_io" at the beginning (=> dump initial state)
1214    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1215    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1216      (need info on NUMBER_OF_PTRACERS)
1217    o missing PTRACERS headers in some routines
1218    o default tamc.h in pkg/autodiff supposed to crash
1219      to ensure proper customization
1220    
1221    checkpoint52a_post
1222    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1223      - moved surfaceTendencyTice from pkg/seaice to main code
1224      - subroutine FREEZE_SURFACE now limits only surface temperature
1225        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1226        => new output.txt for global_ocean.cs32x15 & global_with_exf
1227      - keep the old version of FREEZE for backward compatibility;
1228        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1229      - corresponding modifs for TAF directives
1230    o added surface flux output variables to TIMEAVE_STATVARS
1231    o time-averaged output for pkg/ptracers
1232    o fix problem with ECCO-related divided adjoint
1233      snapshot file was missing some ad-variables,
1234      but no warning issued by TAF
1235    
1236    checkpoint52a_pre
1237    o some bug fixes for #undef REAL4_IS_SLOW
1238    
1239    checkpoint52 = ecco_c52_e35
1240    o after testing adjoints of checkpoint51u_post
1241    
1242    checkpoint51u_post
1243    o this is the post-merge tag of the ecco-branch
1244      (needs another clean checkout and re-testing)
1245    o various natl_box_adjoint configs and results
1246      but no input fields
1247    o obcs adjoint not yet merged!
1248    o adding ECCO global 1x1 and 2x2 degree configs
1249    o updated/extended some store directives for seaice
1250    o pkg/ecco now containes ecco-specific part of cost function
1251    o top level routines the_main_loop, forward_step
1252      supersede those in model/src/
1253      previous input data.cost now in data.ecco
1254      (new namelist ecco_cost_nml)
1255    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1256    
1257    checkpoint51t_post
1258    o this is the pre-merge tag of the ecco-branch
1259    
1260    checkpoint51s_post
1261    o cleanup: removed various obsolete #define-s
1262    o pkg/grdchk
1263      - renamed 'ph-grd 3' to 'grad-res'
1264      - merged from ecco-branch
1265        (remaining bug fixes for obcs gradient checks)
1266      - additional high-precision output for testreport
1267        (grep for 'precision_grdchk_result')
1268    
1269    checkpoint51r_post
1270    o cleaned up or removed CPP_OPTIONS.h files
1271    o updated results for some of the tests to reflect the new
1272      optfiles (-ieee: -O0 instead of -O3)
1273    
1274    checkpoint51q_post
1275    o cd_code:
1276      - moved cd_scheme.F -> cd_code_scheme.F
1277      - separate read_checkpoint from cd_code_ini_vars.F
1278      - separated cd_code part from write_checkpoint
1279      - updated AD_SOURCE, generated .flow
1280      - added CD_CODE_VARS.h to the_main_loop
1281      - Moving cd_code specific store dir.s to pkg/cd_code
1282    o ctrl package totally restructured
1283      - pack/unpack now optional and decoupled from
1284        xx_/adxx_ I/O
1285      - ctrl_pack/unpack cleaned
1286        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1287      - confined inclusion of AD_CONFIG.h to where necessary.
1288    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1289    
1290    checkpoint51p_post
1291    o create initial cd_code package
1292      - WARNING: the initialization of fields within packages
1293        is broken because INI_FIELDS (where READ_CHECKPOINT is
1294        called) is called *before* PACKAGES_INIT_VARIABLES.
1295        This seems to be backwards since
1296        1) its important to initially zero the entire field including
1297           the "halo" region
1298        2) zeroing needs to be done *before* reading pickup info
1299           and the pickup call might or might not happen in any
1300           particular run
1301      - this needs an overhaul for R2
1302    o cleanup verification/*/code/GMREDI_OPTIONS.h
1303    o cleanup testreport
1304    
1305    checkpoint51o_post
1306    o bringing AD-related verif's up to date with genmake2
1307      - carbon/
1308      - global_ocean.90x40x15/
1309      - hs.94.1x64x5/
1310      - (front_relax/ )
1311    o (more) consistent directory structure for AD-related verif.'s
1312    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1313    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1314    o bug fix in find_alpha.F for MDJWF:
1315      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1316        change rho -> rho-rhoConst
1317      - replace call find_rho to find_rhonum
1318    o initialisation of rFlx extended to full array (required by TAF)
1319      and shifted to thermodynamics
1320    o removed PTRACERS.h in ptracers routine
1321    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1322    o Correcting initialisations for fVerU, fVerV.
1323    o helping TAF to recognize dependency on kUp for
1324      fVerU, fVerV
1325    o Replacing delZ by delR in pkg/ctrl/
1326    checkpoint51o_pre
1327    
1328    o undid all of cp51 pending some cleanups and discussion
1329    o added the [#include "AD_CONFIG.h"] statement to all files that need
1330       it for adjoint/tl #defines
1331     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1332     o removed tools/genmake since it no longer works
1333    
1334    checkpoint51n_post
1335    o modifications to make FREEZE flux visible to pkg/kpp
1336      - moved surfaceTendencyTice from pkg/seaice to main code
1337      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1338      - subroutine FREEZE now limits only surface temperature
1339        (this means new output.txt for global_ocean.90x40x15,
1340         global_ocean.cs32x15, and global_with_exf)
1341    o added surface flux output variables to TIMEAVE_STATVARS
1342    
1343    checkpoint51n_pre
1344    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1345    o added [#include "AD_CONFIG.h"] to all files that use the following
1346      defines:
1347      - ALLOW_ADJOINT_RUN
1348      - ALLOW_TANGENTLINEAR_RUN
1349      - ALLOW_ECCO_OPTIMIZATION
1350    
1351    checkpoint51m_post
1352    o incorporating changes to get TAMC/TAF working in genmake2
1353      - added new TAMC/TAF targets to the Makefile
1354      - various cleanups related to package handling
1355      - these changes should have no impact on the forward model
1356    
1357    checkpoint51l_post
1358    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1359     - faster algorithm for cal_addtime.F
1360     - higher precision arithmetic, where needed
1361     - pkg/exf *startdate variables changed from calendar date to
1362       model integration time
1363    
1364    checkpoint51l_pre
1365    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1366    o enable to apply restoring on S & T only in a latitude band.
1367    o update output (external_forcing_surf modif. change truncation errors)
1368       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1369    
1370    checkpoint51k_post
1371    o change default to: useNHMTerms=.FALSE.
1372     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1373       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1374     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1375        exp1, ideal_2D_oce
1376     - change data file of oceanic exp (leave the results unchanged for now)
1377       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1378    o set gravitySign automatically according to the vertical coordinate used
1379      (and change sign: back to "logical" value: +1 when R increases downward)
1380    o added an include barrier to the default CPP_OPTIONS.h and
1381      removed the #include "PACKAGES_CONFIG.h" from it
1382    o fix a bug in mom_fluxform (from chk51j_post)
1383    
1384    checkpoint51j_post
1385    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1386    o adjusted some flow directives (dynamics, thermodynamics)
1387    o added cubed-sphere case to test cost function
1388    o heckpoint_lev?_directives.h now include
1389      pkg-specific directives, whenever those are enabled.
1390    o Moving pkg-specific flow directives to corresponding pkg
1391      Moving pkg-specific differentiation list to corresponding pkg
1392      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1393      ---> conventions are
1394           - pkg_ad.flow
1395           - pkg_ad_diff.list
1396           - pkg_ad_check_lev?_dir.h
1397    
1398    checkpoint51i_post
1399    o merge of the branch-genmake2
1400      - knowingly breaks the older genmake
1401      - automatic generation of all ALLOW_${PKG_NAME} defines
1402      - new testreport supersedes older testscript
1403    o large number of package inclusion and header cleanups
1404    checkpoint51i_pre
1405    
1406    o new output for adjoin of global ocean vector invariant
1407    o fix for checkpoint of thermodynamic seaice and bulk_force
1408    o Steph gchem various cleanups
1409    
1410    checkpoint 51h_pre
1411    o fixed some single quotes
1412    o modify gchem pkg to be more versatile
1413    o modifications to clean up dic pkg
1414    o add pkg/cfc
1415    
1416    checkpoint51g_post
1417    o provide links for ARPACK and ADM*TLM
1418    o start removing verification/vero/
1419    o update AD-related stuff
1420      (in particular some IF-statements in model/src/ routines)
1421    o adding to verification/global_ocean.90x40x15/ adjoint of
1422      vector invariant setup
1423    
1424    checkpoint51f_post
1425    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1426    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1427      of tracer Green's fucntions for ocean inversion project.
1428    
1429    checkpoint51f_pre
1430    o Added on-the-fly spatial interpolation capability
1431        "USE_EXF_INTERPOLATION" to pkg/exf.
1432      - This is a temporary Cartesian-grid hack until
1433        the super-duper ESMF coupler becomes available.
1434      - See verification/global_with_exf/README for usage example.
1435      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1436        flags and modified pkg/seaice accordingly.
1437    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1438        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1439        non-local transport term.
1440    
1441    checkpoint51e_post
1442    o pkg/mom_vecinv:
1443      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1444      - add time-ave diagnostic of vorticity advection.
1445    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1446    o atmospheric geopotential: - include water vapor effect;
1447                                - use p^kappa in p* scaling.
1448    o land pkg: read initial state from files.
1449    o AIM : add stratospheric drag in the upper level
1450    
1451    checkpoint51d_post
1452    o change function ILNBLNK (=> last non-blank char.) to return zero
1453      (instead of the string length) when the string. char is empty
1454    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1455    o modif's to restore TAMC compatibility
1456      - avoid "_d" constructs in PARAMETER declarations
1457      - avoid interrupting lines by comment lines
1458    o Use cluster local disks for purely local I/O
1459      vs. globally visible disks needed for ctrl stuff
1460      (merged from ecco-branch)
1461      - new active_file_loc... and mdsio_..._loc routines
1462      - affected packages: autodiff, ctrl, grdchk, mdsio
1463    
1464    checkpoint51c_post
1465    o introducing integer flag debugLevel
1466      - debLevZero: suppress all output
1467      - debLevA: standard
1468      - debLevB: equivalent to current debugMode=.TRUE.
1469    o introducing pathname variable mdsioLocalDir for mdsio
1470      that can be specified at runtime
1471      (relevant for cluster I/O to local disk)
1472    `
1473    >>>checkpoint51b_post
1474    adjoint of ptracers
1475    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1476    o extended state in checkpoint_lev?, etc.
1477    o alternative ctrl/cost with tr1 or ptracer
1478    o new comlev1_bibj_ptracers
1479    o new ptracers.flow
1480    o made ptracers_forcing same as external_forcing_s
1481    o added verification for adjoint with ptracers
1482      - adm. grdchk fail so far
1483      - tlm. grdchk OK
1484      - checked tapelev/comlev recomputations: OK
1485    <<<checkpoint51b_pre
1486    
1487    checkpoint51a_post
1488    o added code for biogeochemistry package
1489      - new pkgs: dic, gchem
1490      - new subroutine in ptracers
1491    o modify code for biogeo packages
1492      - in model/src and pkg/ptracers
1493    
1494    checkpoint51
1495    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1496      - autodiff, ctrl, exf, grdchk, seaice
1497      kept separate packages
1498      - cost, ecco, obcs
1499    o updating verification/internal_wave, verification/lab_sea
1500      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1501    
1502    checkpoint50i_post
1503    o Preparing next differentiable checkpoint and sync
1504      of MAIN vs. ecco-branch
1505      - 1st step: this one is differentiable
1506      - 2nd step: next(! not this) checkpoint will have updated packages
1507                  from ecco-branch)
1508    
1509    checkpoint50h_post
1510    o new package "land": provide surface BC for AIM.
1511    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1512    o AIM: use true log-P extrapolation for near surface temp (= as in
1513        F.Molteni paper) ; update aim.5l_cs output.
1514    o New variable in PARM03 for more flexible pickups
1515    o somewhat cleaned package initialisation sequence for
1516      ctrl/ cost/ ecco/ in packages_... routines
1517    
1518    checkpoint50g_post
1519    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1520      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1521      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1522        made the default because of faster convergence than ADI
1523    
1524    checkpoint50f_post
1525    o exf totally restructured
1526      - replaced all exf_set_ routines by one generic exf_set_gen.F
1527        and made sure it's still differentiable
1528      - split exf_getffields.F into new exf_bulkformulae.F
1529      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1530      - updated adjoint/makefile and relevant verif. accordingly
1531    
1532    checkpoint50f_pre
1533     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1534          + change Evap over land. (update aim.5l_cs output)
1535     o added missing .cvsignores and made uniform across expts
1536     o changed configuration of tidal_basin_2d expt
1537     o added pkg/debug functions for tracing code in fatal crashes
1538     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1539     o new fn in pkg/monitor to stop model if solution grows too big
1540     o removed lots of single quotes from comments
1541    
1542    checkpoint50e_post
1543    o make KPP work with PTRACERS
1544     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1545       nearly a copy of kpp_transport_s
1546     - there is no analogue to SurfaceTendencyS, so I have to use
1547       gPtr(of the surface layer) instead
1548    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1549    checkpoint50e_pre
1550    
1551    checkpoint50d_post
1552    o change kpp output from multiple-record state files to single-record state
1553      files analogous to write_state.F
1554    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1555      analogous to the cg2d-related output.
1556    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1557      so that writing to internal file fn (with length 512) fails.
1558    checkpoint50d_pre
1559    
1560    checkpoint50c_post
1561    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1562    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1563    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1564    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1565    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1566    
1567    checkpoint50c_pre
1568    Merging from release1_p13:
1569    o bug fix for pkg/seaice dynamic solver
1570    o Added SEAICE_initialHEFF to pkg/seaice
1571    
1572    checkpoint50b_post
1573    o store u*,v* in gU,V instead of in guNm1,gvNm1
1574    o in order to put the momForcing out of the Adams-Bashforth:
1575      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1576      to timestep.F
1577    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1578    o re-generate output for highly sensitive test-exp:
1579       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1580    
1581    checkpoint50b_pre
1582    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1583    o corrected CPP option mismatch in exf_Bulk... functions for case
1584      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1585    
1586    checkpoint50a_post
1587    o Bug fix for merging between c50 and KPP.
1588      ikey was passed from thermodynamics to kpp_calc via
1589      common block rather than being recomputed in kpp_calc,
1590      in contradiction with new key itdkey.
1591      New key ikppkey created, and tamc.h headers updated.
1592    
1593    checkpoint50
1594    - 2nd step of merge with ecco-branch:
1595      merge changes in ecco-branch back into main trunk
1596    - bug fix in find_alpha
1597    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1598    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1599    - merged some sliced AD support routines
1600    
1601    checkpoint49
1602    merged from ecco-branch:
1603    o exf:
1604      - Enable initialisation of forcing fields to constant
1605        (runtime) values.
1606      - in exf_getffields.F
1607        Reduce i-/j-loop to interior domain, discarding overlaps.
1608        That also fixes wrong TAF-key computations for key_1, key_2
1609        with bulf formulae.
1610      - exf_init.F modify #ifdef for exf_init_evap
1611      - exf_getffieldrec.F, ctrl_getrec.F
1612        The following INT-usages are not safe:
1613          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1614          fldcount = int(fldsecs/fldperiod) + 1
1615        and were modified.
1616    o autodiff: checkpoint_lev...
1617      - updated storing for bulk formulae (some arrays were missing)
1618      - added state for seaice package
1619      - synchronized with main branch
1620    o DIVA:
1621      Modif.s in
1622      - the_main_loop.F
1623      - the_model_main.F
1624      and added cost_final_restore.F cost_final_store.F
1625      o With these changes, it is possible to fully separate
1626        the first forward run to compute the cost function (mdthe_main_loop)
1627        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1628        into separate model executions.
1629        This enables better tuning of DIVA to given queue sizes.
1630      o Loss of cost function value in consecutive DIVA runs is
1631        fixed by storing to 'costfinal' file.
1632      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1633        beginning/end of adjoint integration is accounted for.
1634      The current changes apply to TAF-1.4.26.
1635      TAF has one remaining bug, requiring one manual change
1636      (see MITgcm manual).
1637    o cal: synchronized between MAIN and ecco-branch
1638    
1639    checkpoint48i_post
1640    o Changes to restore differentiability of code w.r.t. previous tag
1641      (mostly adding new routines to make list and replacing
1642      pressure by totPhiHyd).
1643    o Updated and merged grdchk package
1644      - has both ADM and TLM checks
1645      - works for single- and multi-proc.
1646      - output cleaned
1647      - worked successfully for parallel DIVA
1648    o genmake:
1649      - Adding -platform=SP4
1650      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1651    o Modif. for DIVA:
1652      ctrl_unpack should not be called in intermediate DIVA interval.
1653      (similar thing would apply for active files such as
1654      tbar, sbar, psbar, which should not be reinitialised;
1655      only relevant for ecco-branch)
1656    
1657    checkpoint48h_post
1658    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1659    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1660    o Added SEAICE_initialHEFF to pkg/seaice
1661    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1662    
1663    checkpoint48g_post
1664    --- EOS:
1665    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1666      store total Potential in totPhyHyd for diagnostics & EOS.
1667    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1668    --- Pressure/geopotential gradient:
1669    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1670    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1671      ( changes results of global_ocean_pressure )
1672    o NLFS + z-coord.: add eta*Rho' contribution.
1673    o accurate phiHyd when using interface-W at the middle between 2 centers
1674     ( changes results of ideal_2D_oce )
1675    o includes r* 2nd term in potential gradient.
1676    
1677    checkpoint48f_post
1678    Merging from release1_p12:
1679    o Modifications for using pkg/exf with pkg/seaice
1680      - improved description of the various forcing configurations
1681      - added basic radiation bulk formulae to pkg/exf
1682      - units/sign fix for evap computation in exf_getffields.F
1683      - updated verification/global_with_exf/results/output.txt
1684    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1685      (SBO) core products, including oceanic mass, center-of-mass,
1686      angular, and bottom pressure (see pkg/sbo/README.sbo).
1687    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1688      to avoid negative values in shallow regions.
1689      - updated verification/natl_box/results/output.txt
1690      - updated verification/lab_sea/results/output.txt
1691    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1692    o Added useSingleCpuIO option (see PARAMS.h).
1693    o Updated useSingleCpuIO option in mdsio_writefield.F to
1694      work with multi-field files, e.g., for single-file pickup.
1695    o pkg/seaice:
1696      - bug fix in growth.F: QNET for no shortwave case
1697      - added HeffFile for specifying initial sea-ice thickness
1698      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1699    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1700      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1701    o pkg/seaice:
1702      - adjoint-friendly modifications
1703      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1704    
1705    checkpoint48e_post
1706    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1707    o dynamics: change definition of computational domain & adapt mom_fluxform
1708      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1709    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1710        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1711        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1712        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1713        inverted_barometer solid-body.cs-32x32x1
1714      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1715    
1716    checkpoint48d_post
1717    o in preparation for r*:
1718     a) use pre-computed gradient of hydrostatic potential:
1719        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1720     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1721        => affects results of glob_oce_pressure (different truncation error)  
1722      update output.txt of ideal_2D_oce & global_ocean_pressure
1723    
1724    checkpoint48d_pre
1725    o in preparation for r*:
1726      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1727      pass the 2 comp. of the grad. as arguments to momentum S/R.
1728      but for the moment, only used if it does not change the results.
1729    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1730    
1731    checkpoint48c_post
1732    Modifications in treatment of initial flux forcing controls
1733    to avoid extra storing of flux fields.
1734    
1735    checkpoint48c_pre
1736    o Added tidal_basin_2d experiment (currently 1D!)
1737    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1738    
1739    checkpoint48b_post
1740    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1741     (modification to pressure gradient not yet implemented)
1742    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1743      (for U & V) that are used for vertical advection of momentum.
1744    
1745  checkpoint48a_post  checkpoint48a_post
1746  o In preparation for r*, use temp. array to compute vertical transport  o In preparation for r*, use temp. array to compute vertical transport
1747     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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