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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1077 by heimbach, Tue Mar 17 20:01:12 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  checkpoint61j
8  o moved ptracer ctrl index 17 -> 32  o pkg/seaice: turn a few hard wired parameters into run time parameters
9    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
10      time in seconds as promised by the usints in seaice_monitor and exf_monitor
11    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
12      that are not cubed-sphere grids
13    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
14    o pkg/ctrl:
15      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
16    o non-hydrostatic (calc_gw.F):
17      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
18      update output of exp. global_ocean.cs32x15.viscA4
19    o remove backward compatibility for thetaMin,phiMin
20      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
21    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
22      interpolated wind field not only for curvilineargrid=.true., but also
23      for a rotated grid (rotateGrid=.true.)
24    o pkg/exf: add capability to bypass interpolation for runoff
25      by setting yet another CPP-flag
26    o eesupp/src, B-grid exchange:
27      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
28    o autodiff
29      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
30      allows to switch to single-prec common blocks;
31      corresponding switch occurs in tamc.h, integer isbyte
32      TAF store directivs "byte" and "kind" seem equivalent;
33      Most tamc.h have been updated correspondingly.
34    
35    checkpoint61i
36    o autodiff:
37      fix autodiff_sore/_restore indices for obcs
38      (spotted by I. Hoteit, M. Mazloff)
39    o pkg/autodiff, pkg/ctrl:
40      Add flag to reduce all tapelev I/O to single-prec.
41      In data.ctrl set
42        doSinglePrecTapelev = .TRUE.
43    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
44      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
45    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
46      real fresh water flux (not yet)
47    o pkg/mdsio & rw:
48     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
49     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
50    o pkg/flt:
51     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
52       init_fixed & ini_varia.
53     - clean-up & simplify linear interpolation S/R:
54       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
55     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
56     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
57     - add vert. coordinate & horiz. indices to output files.
58     - change vertical position in initial condition, from index to depth [m].
59     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
60       (easier to get to a curvilinear grid) ; delX,delY no longer used.
61    o pkg/ggl90: a few modifications:
62     - fix bottom boundary condition, and interpolation of KappaE
63       near top and bottom
64     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
65     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
66     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
67    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
68      (maintain temporary backward compatibility, until next checkpoint)
69    
70    checkpoint61h
71    o pkg/diagnostics with "periodic averaging diagnostics":
72      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
73    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
74    o pkg/obcs: fix loop ranges for balancing code
75    o pkg/flt:
76     - improve criteria for finding which tile owns a float.
77     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
78    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
79      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
80      with ocean biogeo)
81    o pkg/flt:
82     - do some cleaning and fix the restart ;
83     - add output.txt in flt_example/results to get this pkg tested.
84    o genmake2: add an EXTENDED_SRC option and flag.
85       for now, cannot be turned on on command line (only through genmake_local)
86    o pkg/mdsio: read/write vector:
87     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
88     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
89       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
90     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
91      (drop to 4 digits matching for grad). But this test does not look very
92      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
93    
94    checkpoint61g
95    o pkg/flt:
96      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
97       + make OPTIONS file more standard.
98      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
99      - fix _BYTESWAPIO CPP-Flag
100      - standard reading of file-parameter "data.flt"
101      - fix argument list of S/R FLT_RESTART
102      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
103    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
104    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
105      a still unfixed compiler/optimization bug
106    
107    checkpoint61f
108    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
109      update results of global_ocean.cs32x15.icedyn test.
110    o move getcon.F from model/src to pkg/fizhi.
111    o pkg/exf: add parameter for extrapolation of temp up to the surface
112       and option to prevent negative evap (in bulk_largeyeager04 only).
113    o Prather Advection scheme: fix tracer conservation for divergent flow
114      (e.g., when using NonLin Free-Surface).
115    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
116    o gmredi (Visbeck-variable-K):
117     - add more parameters to Visbeck-variable-K.
118     - use a 5 points average for dSigmaR in Visbeck-K calculation
119       (more "homogenous": same stencil and same weights as in dSigmaH)
120     - update output of ideal_2D_oce experiment.
121    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
122      (#undef REAL4_IS_SLOW)
123     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
124       coordinate variable
125     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
126       (surface forcing fields), removes some of the functionality
127     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
128     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
129       probably not all: copy _RS surface flux fields to RL field before
130       calling DIAGNOSTICS_FILL
131     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
132       real*4 (CALL EXCH_*_RS) versions.
133     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
134       (generate new output).
135    
136    checkpoint61e
137    o gmredi (Visbeck-variable-K):
138      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
139      - change computation of Visbeck-K where Slope > Smax :        
140        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
141        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
142    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
143      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
144    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
145    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
146      does not become too large (to avoid precision problems in implicit-diffusion
147      solver); update ideal_2D_oce output.
148    o pkg ggl90:
149      - in ggl90_cal.F: compute only one set of visc/diff, used to
150        step forward TKE/T/S/momentum
151      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
152        have Prandlt =1)
153    o gmredi (fm07):
154      - add lower limit on Transition layer thickness + lower limit on 1/lambda
155      - allow to set few more params from data.gmredi
156    o pkg ggl90:
157          - add missing sqrt(2) factor in computation of mixing length
158            scale in ggl90_calc.F
159            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
160    
161    checkpoint61d
162    o adjoint modifs
163      - adapt to new field rhoInSitu
164      - allow to revert from StoreDynVars2D, StoreDynVars3D
165        to individual fields
166        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
167    o store 3-D (in-situ) density in commom block (DYNVARS.h)
168     - save 1 rho computation.
169     - no longer modify T & S inland when using down_slope pkg.
170    o gad_som : allow to switch to SOM advection for T & S without corresponding
171      pickup files (using new S/R: MDS_CHECK4FILE).
172    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
173      (for useSingleCpuIO to work in multi-threaded)
174    o pkg/shelfice:
175     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
176       with SHELFICEtopoFile in data.shelfice
177     - move code for reading ice shelf topography and modifying hFacC into separate
178       subroutines of the shelfice package
179     - separate initialisation of "fixed" and "variable" variables
180     - kTopC is not (yet) replaced by kSurfC, although this is possible
181    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
182    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
183      and rename:
184      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
185      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
186    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
187    
188    checkpoint61c
189    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
190      to add mass source/sink of fluid in the interior (3-D generalisation
191      of oceanic real-fresh water flux).
192    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
193    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
194    o new pkg: down_slope
195      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
196      - presently, modify T & S inland (dwnslp_calc_rho.F).
197        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
198      - implementation for ocean in P-coords not tested.
199      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
200    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
201      (to facilitate conversion of oceanic pkg to p-coordinate).
202    o change FIND_RHO to FIND_RHO_2D :
203      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
204    o new pkg: cheapaml
205    
206    checkpoint61b
207    o exch2:
208      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
209      - no longer depend on the order sequence (N,S,E,W).
210      - 3rd exchange no longer needed (tested with 24 tiles).
211      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
212      - exch_UV_A-grid readily available (but not yet tested).
213      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
214      (both are no longer needed) in exch_uv: no effect in forward run; but
215       get truncation error differences with adjoint exch.
216    o exch2:
217     - change index-bounds storage (moved from target to local tile,
218       more intuitive this way) ; rename/remove some variables.
219     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
220    
221    checkpoint61a
222    o exch2/matlab-topology-generator:
223      fix bug in index bounds for N-S internal exchange (hard to tell if this
224      had any effect on the solution).
225    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
226      is exceeded
227    o testreport: modify syntax of awk, so that it works also with
228      awk, and not only with nawk and gawk
229    
230    checkpoint61
231    o autodiff
232      Change default for TAF usage by removing argument '-nonew_arg'
233      This changes TAF subroutine argument list (ordering of active var.)
234      Omission of this flag leads to incompatibility w.r.t. TAMC
235      To restore TAMC-compatibility, need following modifs:
236      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
237      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
238      Tested TAF version is 1.9.22
239      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
240    
241    checkpoint60
242    --->>> This is the last checkpoint for which generating the adjoint
243    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
244    --->>> by default.
245    --->>> Future checkpoints will ommit this flag by default.
246    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
247    o pkg/grdchk: Add gradient check to etan0 perturbations.
248    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
249    o pkg/autodiff: more flexibility in zeroadj.
250      model/src: modifying do_oceanic_phys.F accordingly.
251    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
252    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
253      special setup of gmredi for which the adjoint is stable
254      enough for parameter optimization.
255    o bridging the gap between eddy stress and GM.
256      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
257          along with a change in CPP option (now ALLOW_EDDYPSI).
258      -> when using GM w/ GM_AdvForm:
259          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
260          is applied either in the tracer Eq. or in momentum Eq.
261          depending on data.gmredi (intro. GM_InMomAsStress).
262      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
263      The key modifications are in model/src/taueddy_external_forcing.F
264      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
265    
266    checkpoint59r
267    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
268      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
269      fix option to read coriolis(@ cell-corner) from files with CS-grid.
270    o pkg/mnc: add some attributes to standard 1D-coordinate variables
271    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
272      mass points, when using mnc for output
273      - add runtime parameter (missing_value, missing_value_int) to override
274        default (which is the value of getcon('UNDEF'))
275    o pkg/mnc: prepare mnc for the actual use of missing values with the
276      diagnostics package: small fix in mnc_cw_readwrite.template and more
277      initialisation of never used fields
278      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
279      versions
280    o pkg/thsice/thsice_ini_vars.F added default initial values so that
281      thermodynamics sea ice solver does not blow up when some initial fields
282      are missing.
283    o move from external_forcing_surf.F to ini_forcing.F
284      the p-coord. hack consisting in using pLoad to set phi0surf ;
285      update output of tutorial_global_oce_in_p (affected @ truncation level).
286    o Freshen up a bit hs94.1x64x5, notably:
287      remove rotationPeriod and tRef=5*0. (adjoint only), and add
288      exactConserv=.TRUE.
289    o pkg/generic_advdiff:
290      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
291      applies to files where Temperature & Salinity 2nd Order moments are used.
292    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
293      this uses a dynamically allocated internal state data structure
294      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
295      and requires a fortran 90 compiler
296    
297    checkpoint59q
298    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
299       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
300    o Refresh tutorial_global_oce_biogeo, notably:
301      - change bathymetry (put back seamounts in ACC, use hFacs)
302      - change EOS (POLY3 --> JMD95Z)
303      - use Bryan-Lewis vertical diffusivity
304      - use multidimensional advection
305      - remove old virtual virtual in dic pkg, now done through ptracer pkg
306      - change a couple of parameters in dic pkg
307    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
308    o pkg/obcs: change default to OBCSfixTopo = .true.,
309      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
310      - replace "debugMode" with "debugLevel .GE. debLevB"
311    o implementation of TAF directives for gchem,cfc,dic
312    o remove "exp5" (replaced by tutorial_deep_convection).
313    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
314      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
315      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
316      --> changes results in exp4, seaice_obcs
317    o tutorial_deep_convection :
318      update the set-up and increase resolution and domain size ; start
319      from pseudo initial conditions = output at t=120mn in order to see
320      something happening when running testreport.
321    o pkg/seaice: add os7mp as an advection scheme
322                  add check for advection schemes
323                  add a flag for restoring T and S underneath sea ice
324    o pkg/my82: add netcdf-support and diagnostics
325    o thsice pkg:
326      - Now hsMax limits snow height by turning it into ice following
327        flooding scheme (and now conserving energy)
328      - Slight rewriting of the formula in thsice_calc_thick.F
329      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
330      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
331    
332    checkpoint59p
333    o gchem / dic / cfc :
334      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
335      - add new parameter files: "data.dic" & "data.cfc" ;
336      - various re-arrangement in initialisation & header file ;
337      - fix tutorial_global_oce_biogeo for multi-threaded test.
338    o pkg/dic: test for "pickup_dic" file when restarting ;
339      if no pickup-file, can restart with a re-initialised pH (same as it did
340      before) providing pickupStrictlyMatch is set to False.
341    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
342      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
343    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
344      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
345    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
346     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
347       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
348    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
349       scheme to use for vorticty-term ;
350     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
351       (with default selectVortScheme, return to original discretisation)
352     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
353    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
354    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
355      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
356      also fix diagnostics VISCAHW & VISCA4W.
357    
358    checkpoint59o
359    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
360    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
361      move a few statemens out the main loop into separate loops
362    o pkg/shelfice:
363      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
364        (kg/m^2/s), does not break tests, because in verification/isomip,
365        rhoConstFresh=rhoConst (by accident)
366      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
367      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
368        new file model/src/seawater.F, so that they are available for all pkgs.
369      - convert potential temperature into in-situ temperature. This changes the
370        isomip tests => update tests
371    o add a flag writePickupAtEnd (default=true) to be able to suppress
372      writing a pickup at the last timestep
373    o tools/mpack-1.6 :
374      - disable automake (not working) and autoconf (not needed).
375      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
376        also cleaner with much less compilation warnings.
377    o pkg/profiles:
378      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
379      (for "less than 32 characters name" compiler requirement)
380    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
381      conditions that have a different sampling frequency than S/T/U/V obcs
382    o pkg/diagnostics (stats-diags):
383      - fix global Min/Max in case 1 processor get only empty tiles
384    o genmake2: replace (4 times)
385         make genmake_tc_1.o >> genmake_warnings 2>&1
386      with
387         COMM="$CC $CFLAGS -c genmake_tc_1.c"
388         echo $COMM >> genmake_warnings
389         $COMM >> genmake_warnings 2>&1
390      to make genmake2 always see the value of CC as specified in the optfile.
391    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
392      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
393      - modify verification advect_cs test to test SOM-advection on CS-grid.
394    o pkg/ctrl:
395      - Rewrite of ctrl_map_ini_ecco.F,
396        introducing a generic routine (ctrl_map_ini_gen.F).
397      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
398    
399    checkpoint59n
400    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
401      number in dedicate array "hdiag":
402      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
403        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
404      - many small changes (integer format) for large number of diagnostics
405      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
406        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
407    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
408      usingSphericalGrid, this allows to define the rotated grid coordinates
409      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
410      geographical coordinates according to the inverse of the rotation defined
411      by the Euler angles, so that Coriolis parameter and online-interpolation by
412      exf works with the geographical coordinates on XC/YC/XG/YG.
413      Naturally, this feature does not work with all packages, so some
414      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
415      profiles), because there the coordinates are assumed to be regular
416      spherical grid coordinates.
417    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
418      - introduce isopycnal diffusion coefficient control.
419    o tools/adjoint_options:
420      - additional control vector components.
421    o pkg/mnc: have mnc create marginally meaning full coordinate variables
422      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
423    o pkg/mypackage:
424      - add example of read/write pickup for state-var ;
425      - add entry points to the main code for state-vars diags & write-pickup.
426    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
427      transitions for useExfYearlyFields
428      - add new subroutine that determines the file to read from for
429        use*YearlyFields = .TRUE. and .FALSE.
430      - add a verification experiment to global_with_exf that tests
431        useExfYearlyFields with USE_EXF_INTERPOLATION defined
432    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
433      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
434      subroutines (which could be generated from a template, because they are
435      almost identical), for now they are included in obcs_prescribe_read.F for
436      simplicity
437    o pkg/exf:
438      - add a little more diagnostic to exf_interp_read (in analogy to
439        mds_read_field, can be turned off with debugLevel < debugLevA=1)
440      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
441        ugly but fast by unrolling short inner loops, inserting a unroll=8
442        directive in routine lagran, and splitting a loop and making do while the
443        outermost loop (the latter requires the intoduction of index arrays)
444    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
445    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
446      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
447    o verification/seaice_obcs: updated for restart test and latest options
448    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
449      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
450      for now this is only available for the C-grid code and also within
451      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
452    
453    checkpoint59m
454    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
455      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
456    o gad_som : fix flux output (& diagnostics) to have same units as other  
457      advection scheme fluxes (was previously multiplied by deltaT).  
458    o added verification/seaice_obcs both to test seaice open boundaries
459      and to provide an example matlab scrpt for generating them
460    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
461    o pkg/salt_plume: clean up salt_plume_frac.F to
462      remove redundancy in PlumeMethod 1 and 4
463    o pkg/kpp: added saltplume diagnostics
464    o pkg/obcs and pkg/seaice:
465      - do not set uice and vice to zero when OB*icefile are unspecified
466      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
467      - moved seaice tracer obcs after call to seaice_growth
468    o pkg/salt_plume: added various options for salt plume depth
469      criterion and for vertical distribution of the salt
470    
471    checkpoint59l
472    o pkg/ptracers: new version of ptracers pickup:
473      read meta file and write only fields which are needed to restart.
474      ( same logic as main pickup file ; also using pickupStrictlyMatch )
475    o pkg/seaice:
476      - add timescale for melting due to warm mixed layer as a means of
477        setting SEAICE_availHeatFrac more conveniently
478      - add a CPP-flag/runtime parameter check for flooding algorithm
479      - reformulated availHeat in seaice_growth.F to be independent of AREA
480    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
481      unit changes
482    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
483    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
484      SX vector computer.
485    o pkg/seaice:
486      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
487        seaice forcing fields can now be read only through pkg/exf
488      - removed some unused halos
489    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
490    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
491      or U/VICE from U/VWIND before computing U/VSTRESS
492    
493    checkpoint59k
494    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
495      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
496    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
497      all experiments pass when compile with un-initialised var. checking option.
498    o added pkg/salt_plume
499    o script to test restart (for now, in MITgcm_contrib/jmc_script)
500    o pkg/seaice: new read/write pickup version.
501      read meta file and write only fields which are needed to restart.
502      ( same logic as main pickup file ; also using pickupStrictlyMatch )
503    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
504    o lab_sea.hb87: modify the domain & update output.hb87.txt :
505      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
506      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
507      process. Fixed here by closing the domain at the Northern boundary.
508    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
509    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
510      a set of consecutive levels in/from a 3-D array.
511    o pkg/ptracers:
512      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
513      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
514    
515    checkpoint59j
516    o in pkgs: dic, obcs, offline, rbcs:
517      standard way to compute coeff. for time interpolation between 2 time reccords
518      which retains full precision (& make results less dependent on compiler).
519      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
520    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
521      packages instead of reading ice cover and wind speed separately
522    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
523     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
524      to allow to compile customized code before the update)
525    o cleaning-up:
526      - fix CPP instruction syntax in pkg/obcs
527      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
528        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
529      - fix some threads issue in IO parts.
530    o pkg/dic:
531      - add tons of "_d 0" (--> much better testreports !)
532       and then update outputs of tutorial_global_oce_biogeo
533    o pkg/mom_fluxform:
534      add a special version of momentum advection intended to conserve momentum
535      next to a bathymetry step or a coastline edge. (default = off = #undef)
536    o new read/write pickup version:
537      - for now, only implemented for main (mdsio) pickup file.
538      - write out only what is needed to restart; merge pickup_nh , pickup_ph
539        and main pickup together.
540      - read meta file; read only what is needed to restart; stop if a field
541        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
542        if it make sense (even if the restart is not perfect).
543      - if no meta file, assume that pickup to read corresponds exactly to
544        a pickup that would currently be written.
545      - read pickup written in the old format (until checkpoint59i) if it
546        recognizes an old meta file (no field-list).
547      - add a meta file in exp. which starts from a pickup: 2 cases:
548        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
549         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
550        b) a meta file describing the content of the associated pickup file
551         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
552    o pkg/mdsio & pkg/rw:
553      - new routine to read a meta file ; new set of routine to read
554        Multiple-fields file (with meta file).
555    o added open boundary conditions capability for seaice
556        HSNOW, HSALT, UICE, and VICE
557    
558    checkpoint59i
559    o adjoint:
560      * fix multiDimAdvection adjoint
561        (partial recomputation problem by TAF for fVerT(:,:,kDown)
562        and comlev1 size definition (maxpass vs. max. number of tracers)
563      * verification/global_ocean.90x45x15 adjoint now tests
564        NLFS and multiDimAdvection using DST3 (=30)
565      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
566    o pkg/kpp: add "_d 0" to real constant (if missing);
567      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
568      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
569    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
570      for internal parameters related to restart process (formerly from PARAMS.h)
571      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
572    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
573      as argument. (only atm2d & obcs write_pickup have not yet been updated)
574    o pkg/monitor:
575      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
576      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
577      - account for deep Atmosphere factor and density factor (anelastic)
578    o added open boundary conditions capability for seaice HEFF and AREA
579    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
580      thermodynamics
581      - requires a little reorganization, which affects the testreport results
582        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
583        so that now the conservative form is tested
584      - add a few comments
585    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
586    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
587    o add new diagnostics to seaice: advective, diffusive fluxes (only for
588      multidim-advection, for scheme 2 they are not filled) and transports,
589      thermodynamic growth rates
590    o change units of EmPmR (inside the code, + within coupling interface)
591      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
592      Affects results @ truncation level (cg2d match) and update output of
593       experiments: lab_sea(6), global_ocean.90x40x15(10),
594      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
595      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
596      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
597      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
598    
599    checkpoint59h
600    o pkg/exf:
601      - improve vectorization by moving if-statement out of loops in
602        exf_mapfields, exf_radiation
603      - exf_bulkformulae.F: introduce 2D fields and vectorize code
604    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
605    o testreport:
606      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
607        monitor & update offline_exf_seaice exp. output.
608      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
609    o pkg/seaice:
610      - bug fix in the evp solver: boundary conditions were affected be
611        masking of zMax/zMin (changes results)
612      - minor bug fix in boundary conditions in seaice_calc_strainrates
613        (changes results for no_slip)
614      - seaice_lsr.F: make interpolation of eta dependent on boundaries
615      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
616      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
617        stress formulation and no-slip boundary conditions
618    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
619      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
620    o pkg/seaice: a first HSALT time stepping equation has been checked in
621    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
622      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
623      without requiring DO-IF statements
624    o pkg/thsice:
625      use continuous power-law function for partition of energy between lateral
626      melting/freezing and thinning/thickening ; old code using step function
627      still available with #undef THSICE_FRACEN_POWERLAW
628      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
629    o testreport: change AD testing : check against results/output_adm.txt
630      using same scripts as for forward test.
631    
632    checkpoint59g
633    o adjoint testing: in preparation for changing testreport:
634      - output format: cost and grad written on separated lines
635      - ad output results in directory "results" (instead of "results_ad")
636    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
637    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
638    o pkg/ecco: allow user defined cost function contributions
639    o testreport:
640      Allow to choose (per experiment) the list of tested output variables
641       and the main variable (used to issue a pass/FAIL ) ;
642      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
643      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
644      Also modify printing of summary:
645       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
646       b) echo the list of tested variables in the individual summary.txt of
647          each experiment.
648    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
649      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
650      (but still depend on the tile decompostion of the domain).
651    o pkg/seaice: change a discretization detail to make the B-grid code
652      "more symmetric". This change is likely to remove all "ridges/leads" that
653      where quasi-aligned with the grid in B-grid solutions. It may also be
654      the solution to the stress coupling issues with the B-grid.
655    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
656      remove .cvsignore from input dir. (since testreport no longer run here).
657    o pkg/thsice:
658     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
659     - fix reshaping of sea-ice just after advection:
660       melt all the ice only if ice-volume is too small.
661     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
662       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
663     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
664    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
665      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
666    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
667      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
668      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
669      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
670      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
671      -> update output.txt
672    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
673     this affects truncation error: -> update output.txt of exp:
674      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
675      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
676    
677    checkpoint59f
678    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
679    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
680      a bounded range (in forward mode)
681    o pkg/ecco, ctrl, autodiff and mom_common:
682     internal parameter controls, completements of implementations
683    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
684    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
685      (not seem any difference in testing results).
686    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
687       at face corners.
688    o pkg/generic_advdiff:
689     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
690      loop range indices for computing vertical advection tendency
691      and do the calculation in the interior only (no overlap) ;
692      for now, only implemented for SOM advection (to save CPU time).
693     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
694    o exch2 adjoint
695      First set of changes:
696      - add exch2 hand-written adjoint templates
697      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
698        This will require cleanup in pkg/autodiff/*.F
699        (changed routines currently kept separate in verif. code/)
700      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
701        that used to hide exch2 or cubed-sphere specific code
702        (commented via 'cph-exch2')
703    o pkg/seaice
704      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
705    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
706       output of global_ocean.cs32x15.thsice .
707    
708    checkpoint59e
709    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
710      for B-grid vector (not yet tested) and C-grid vector (<- only used
711      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
712    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
713      (#ifdef ALLOW_SALT_PLUME)
714    o gather_2d/scatter_2d: removed halo regions
715    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
716      scheme and the corresponding test case (under front_relax dir). For now,
717      only available with Skew-flux form and not yet tested in realistic set-up.
718      adjoint: store directives updated, but gradient checks deteriorated,
719      so maybe GM/Redi adjoint is now broken.
720    o seaice adjoint
721      * add AREA, HEFF, HSNOW as control variable
722        (should not change lab_sea results)
723      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
724    o pkg/seaice:
725      * added computation of saltFlux in seaice_growth;
726        For time being, sea ice salinity is assumed constant
727        contribution of snow flooding to freshening of sea ice is neglected.
728        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
729        defaults to 0.0 in order to maintain backward compatibility.
730        Typical values for SEAICE_salinity are 4 to 10 g/kg.
731      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
732      * added SEAICE_availHeatFrac, which specifies fraction of surface level
733        heat content used to melt or grow ice
734      * commented out cap of HICE: it helps keep ice thinner
735      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
736      * applied OBCS T/S mask to HEFFM sea ice mask
737    
738    checkpoint59d
739    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
740     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
741     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
742    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
743     and change default value of parameter "GM_Small_Number";
744     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
745       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
746       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
747    o pkg/ecco: cost function when applying pkg/smooth to controls
748    o pkg/ctrl: add forcingPrecond run time parameter
749    o pkg/seaice:
750     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
751     - fix bug in metric terms of u-equation in LSR solver (implicit part),
752       changes verification/lab_sea
753     - rearrange implicit part of u-equation in LSR solver to make it easier to
754       read, understand, and debug. This causes changes at the truncation level.
755     - fix (serious) bug in the boundary conditions (sign error in the implicit
756       part) of the LSR solver. Changes all LSR results.
757     - fixed problem with HSNOW initialization to avoid thick snow when AREA
758       is initilized with small values - does not change lab_sea results.
759     - added HsnowFile initialization capability
760    o pkg/smooth: addition to model/src and pkg/ctrl so allow
761     initialization of pkg/smooth and application to control vector
762    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
763    o dependencies: pkg/profiles requires pkg/cal
764    o pkg/profiles:
765     - added option ALLOW_PROFILES_GENERICGRID
766         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
767         that interpolation information (grid points and coefficients) is provided
768         within the netcdf input files.
769         -> sample matlab scripts can be found in MITgcm_contrib/gael
770         that allow you to prepare netcdf input files.
771     - also modified: cleaner include statements, cleaner error print statements,
772       cleaner stops when error, and more tests of the netcdf input files consistency.
773    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
774    o pkg/seaice:
775     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
776       requires a new routine: seaice_diagnostics_fill.F
777     - make sure that seaice does not move if not forced (pressure replacement
778       method, Hibler and Ip, 1995), changes results
779     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
780     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
781       It is turned off by default (=-1.), because it changes the results.
782     - make it possible to read AREA from a file, too.
783    
784    checkpoint59c
785    o add S/R and diagnostics for oceanic mixed-layer depth
786    o move GMRedi call after all vertical mixing schemes (including KPP)
787    o pkg/thsice:
788     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
789      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
790    o pkg/obcs:
791     - bug fix for balance code
792    o pkg/seaice:
793      - allow values of SEAICE_elasticParm > 1
794      - add new parameter SEAICE_evpTauRelax as an alternative
795        to SEAICE_elasticParm
796      - make lsr boundary conditions free slip (by default), changes result
797      - add code for no slip boundary conditions for lsr
798      - set minimum of zeta to zero (and not 4e8) (changes results)
799      - add a cap on AREA after advecting AREA if seaice_growth is not called
800    o change calculation of Visbeck K:
801      - no longer depend on tapering scheme; instead, compute slope (limited
802        by GM_maxSlope). this is equivalent to what was comuted before with
803        clipping or linear tappering.
804      - fix vertical averaging (wrong by 1/2 level)
805      - leave the old version (but will not be maintained) within
806        #ifdef OLD_VISBECK_CALC / #endif
807      - update output of exp. ideal_2D_oce
808    o change error catch in calc_r_star to improve vectorization
809    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
810      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
811    o adjoint:
812      Re-organized adjoint checkpointing according to Matt Mazloff
813      (but with modifs/completions/cleanups)
814      Storing is now bundled into large arrays to optimized I/O
815      (and second step in cleanup of the_main_loop)
816    
817    checkpoint59b
818    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
819      - export/import (between ocean & coupler) fields needed for ocean DIC.
820    o pkg/seaice:
821      - get rid of three more exchanges seaice_calc_viscosities (required
822        different loop boundaries in seaice_lsr and seaice_ocean_stress)
823      - bug fix in seaice_ocean_stress (update of lab_sea required)
824      - reduce loop boundaries to necessary minimum also in seaice_evp
825      - go back to the old way of computing deltaC/Z as the adjoint likes that
826        better
827    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
828      passive tracer to an Age Tracer) + update output.txt
829    o pkg/exf:
830      - implement A-grid / C-grid selection for wind-stress input files.
831      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
832      for now, in exf_bulk_largeyeager04.F only :
833      - change implementation for case where windspeed + 2. components wind-stress
834        are read-in. AND use rhoConstFresh to convert evap.
835    o pkg/seaice:
836      - use correct EXCH_UV for wind-forcing (on A-grid).
837      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
838        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
839    o pkg/exf:
840      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
841      EXF_INTERPOLATION:
842      - merge global_with_exf/code version of exf_interp_read.F
843        to the main code ;
844      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
845        reading the file ; Important: This options needs to be defined to recover
846        previous code.
847        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
848      - no longer loose real*8 precision along the way when using exf_iprec=64.
849    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
850      - change discretisation of evp-solver in order to avoid another exchange
851        (changes lab_sea) and clean up a little
852      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
853        help the adjoint (this also changes the results slightly)
854      - add a few "_d 0" where they had been missing in seaice_evp.F
855      - cleaning up: remove unused seaice_calc_rhs.F
856    o pkg/exf: some cleaning-up:
857      - change various "constants" into runtime parameters
858      - cleaned-up Large&Yeager04 routine which should eventually
859        replace exf_bulkformulae.F (changed names of S/R and CPP)
860        and merged various ALLOW_ATM_WIND options
861     only used with thsice pkg (in thsice_get_exf.F):
862      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
863        which are used when useStabilityFct_overIce=TRUE (= the default)
864      - change default values of ice & snow emissivity and scale downward LW
865        by ice & snow emissivity.
866    o pkg/thsice:
867     fix few little problems, in thsice_calc_thickn.F:
868      - growth vertically (and not laterally) if iceFrac == iceMaskMax
869      - melt only laterally if hIce < hThinIce (as the comments say)
870      and in thsice_extend.F:
871      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
872      - start to form ice as soon as the minimum ice-volume is reachable.
873     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
874      and cpl_aim+ocn
875    o pkg/kpp
876     - move computation of surface related input fields to KPP into a new
877       subroutine kpp_forcing_surf.F
878     - remove wrong (within bi,bj loops) EXCH calls.
879     - little cleaning (add argument myThid in last position, cvs header ...)
880     - for now, fix conservation problem by exchanging KPPviscAz (may not
881       be the best fix)
882    o pkg/seaice
883     - check for inconsistent evp parameter/cpp-flag combination
884     - remove leftover errIO flat for obsolete name list error handling
885    o OpenAD
886     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
887    
888    checkpoint59a
889    o pkg/seaice: some parameter clarifications and a little bit of clean up
890    o pkg/thsice: rename run-time parameters:
891       himin       -> hIceMin
892       himin0      -> hThinIce
893       hihig       -> hThickIce
894       i0          -> i0swFrac
895       transCoef   -> bMeltCoef
896       frac_energy -> fracMelting
897      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
898       with default values (for now) that do not change the results.
899      remove old version of thsice vars advection in pkg/seaice.
900    o in FFIELDS.h:
901      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
902      - make pLoad & sIceLoad always available (but still only used if
903         ATMOSPHERIC_LOADING is #define).
904    o pkg/kpp: replaced _KPP_RL with _RL
905    o bug fixes for vertical diffusivity computations when both KPP and
906        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
907        are no longer updating the vertical diffusivity array
908        (passed as argument) but are (re-) setting those arrays.
909    o pkg/seaice: fix bug in evp solver, while doing that
910      - change (improve?) discretization of stress computations for both
911        cgrid-lsr and evp solver
912      - add a new routine to compute strain rates
913      - the above changes lab_sea results
914      - add no slip conditions for evp solver (off by default), lsr-version
915        may follow
916      - fix exchange for shear at Z-points (does not change lab_sea)
917      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
918        (to force the user to pick a time step since there is not "safe" way
919        of choosing it)
920      - add principal stress diagnostics
921      - rearrange fields for evp a little to avoid having to call a: too many
922        exchanges and b: exchanges for stress trensor components which we do
923        not have.
924      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
925        of evp, complete rewrite for lsr case (latter is does not yet work
926        in all cases)
927    o pkg/kpp: add code to have mixing in shelf ice caverns
928      - add myThid to all kpp routines (long overdue)
929    
930    checkpoint59
931    o pkg/exf:
932      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
933        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
934      - move exf header files from lower_case.h to UPPER_CASE.h ;
935        add missing cvs Header & Name
936      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
937      - add namelist param. selectStressGridPosition, exf_monFreq
938      - retire many _CLIM routines, and remove data.exf_clim
939        + params moved to data.exf
940        + climsst, climsss now handled by exf_set_gen, i.e.
941          climss?period=0 refers to constant field,
942          climss?period=-12 to monthly forcing
943      - split up namelists in data.exf
944    o pkg/seaice:
945      - remove seaice_exch and seaice_exch_uv
946      - remove superfluous exchange of theta
947      - add myThid to seaice_budget_ocean/ice
948      - add new interface for atmospheric wind forcing (C-grid only)
949        + new routine
950        + two new field (taux, tauy for stress over ice)
951        + removed one global field (DAIRN) for C-grid case only
952    o pkg/thsise
953      - 2nd set of modifs for thsice adjoint in conjunction with exf
954    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
955    
956    checkpoint58y_post
957    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
958      vertical diffusivity, similar to that in MOM4; turned on using
959      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
960      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
961    o Added capability for 3D specification of background vertical diffusion
962      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
963      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
964      "data" file that contains the 3D vertical diffusivity coefficients.
965    o ice dynamics (pkg/seaice) with thsice thermodynamics:
966      - add code within pkg thsice to advect & diffuse sea-ice fields
967      similar to (and will replace) what has been added in  seaice_advdiff.F,
968      but: - conserving Mass, Heat & Salt.
969           - better when using non-linear advection scheme (not yet fully tested)
970           - can also be used in atmospheric set-up (for now, only the diffusion).
971    
972    checkpoint58x_post
973    o IO option for global-file compact format:
974      - add options when generating topology (utils/exch2/matlab-topology-generator)
975      - add I/O capability (pkg/mdsio).
976      - adapt utils/matlab/rdmds.m to read this format.
977      for now long-line format not yet supported by pkg/mdsio (& exch2).
978    o shelfice: add a few diagnostics
979    
980    checkpoint58w_post
981    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
982      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
983      (and replace horiVertRatio in NH code).
984      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
985                         and tutorial_plume_on_slope (sensitive to truncation)
986    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
987      directly to drive seaice model (C-grid only)
988    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
989     - reintroduce computation of wind from stress,
990     - compute tau (in exf_bulkformulae.F) from windstress averaged to
991       mass points to avoid tau = 0
992     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
993    o rdmnc.m: make it work with "global" files created with gluemnc
994    o rdmnc.m : some improvements in dealing with singleton dimension
995      (tested on all testreport mnc output files).
996    o genmake2: disable pkg/profiles if netcdf test fails.
997    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
998    o move call to cal_readparms up to make calendar parameters/variable available
999      to all packages
1000    
1001    checkpoint58v_post
1002    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1003      useDynP_inEos_Zc tested.
1004    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1005    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1006      and portions thereof.  See read_cs.txt for description and examples.
1007    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1008      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1009      following the great-circle arc between those 2 points.
1010    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1011      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1012    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1013     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1014     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1015     - still needs work (not working with some options ; efficiency to improve)
1016       and serious testing.
1017     - use this scheme for temperature & salinity in 2 advection test exp.:
1018       advect_xy & advect_xz, respectively.
1019    
1020    checkpoint58u_post
1021    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1022    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1023    o testreport: add option "-skipdir" to skip some test.
1024    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1025      momentum calculation.
1026    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1027    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1028      remove checkpoint.F and the_correction_step.F (no longer used);
1029      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1030    o add option (linFSConserveTr) to correct for tracer source/sink due to
1031      Linear Free surface
1032    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1033    o pkg/thsice: fix reading mnc-pickups
1034    
1035    checkpoint58t_post
1036    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1037    o pkg/mdsio:
1038     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1039       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1040       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1041     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1042     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1043       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1044     - new S/R (to replace MDSWRITEMETA), which allows to write more
1045       informations (variable names, time ...) to meta files.
1046     - modify rdmds.m to give back the meta file content.
1047    o pkg/diagnostics: change vertical interpolation to be safer, and more
1048       flexible (define p-levels to interpolate to in data.diagnostics);
1049      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1050       diagnostic pointer.
1051    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1052    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1053    o fix multi-category seaice:
1054     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1055       SEAICE_MULTICATEGORY
1056     - fix short wave heat flux
1057    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1058       and allow to use EVP solver. Change forward lab_sea: test both EVP
1059       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1060    o Initial check-in of lab_sea adjoint
1061      (very similar to natl_box_adjoint/code_seaice)
1062      * used C-grid and EVP solver
1063      * used KPP, GM/Redi
1064      * uses inAdExact=.TRUE.
1065      * gradient checks fail for both ADM and TLM
1066        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1067        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1068        issue is related to forward mismatch between g77 an ifort
1069    o pkg/seaice: overhaul of thermodynamics
1070     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1071     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1072     - move a few global fields out of SEAICE.h into seaice_growth.F and
1073       make them 2D (FICE/QNETO/ ...)
1074     - remove FO (it is the same as QNETO)
1075     - introduce a few local fields to avoid modifying external fields such
1076       as atemp, etc.
1077    
1078    checkpoint58s_post
1079    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1080      changed exf_set_gen.F so that
1081        genperiod=0 means input file is one time-constant field and
1082        genperiod=-12 means input file contains 12 monthly means
1083    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1084      this affects truncation error ; generate new output file for exp. which
1085      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1086        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1087        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1088        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1089        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1090        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1091    o start implementation of deep-atmosphere and anelastic formulation
1092    o verification: remove 2nd copy of input files and use script "prepare_run"
1093      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1094    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1095    o profiles: fix for multithreaded case
1096    
1097    o diagnostics: rename few diags:
1098      s/'PRESSURE'/'RCENTER '/g
1099      s/'TICE    '/'oceFreez'/g
1100      s/'TAUX    '/'oceTAUX '/g
1101      s/'TAUY    '/'oceTAUY '/g
1102      s/'SWFLUX  '/'oceQsw  '/g
1103      s/DIFx/DFxE/g
1104      s/DIFy/DFyE/g
1105      and add few ocean-forcing diagnostics:
1106      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1107    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1108      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1109      as actual snow thickness.  It now refers everywhere to effective snow
1110      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1111    
1112    checkpoint58r_post
1113    o modifications to pkg/seaice/growth.F, which change results of
1114      lab_sea experiment: fixes pertain to melting snow over open water, to
1115      masking EVAP under sea ice, and to using the correct AREA variable for
1116      computations of EVAP, PRECIP, HSNOW, and GHEFF
1117    o add ability to read bathy, salt, and theta using MNC (off by def)
1118    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1119      both are turned off by default and do no change any results
1120    o seaice advection with pkg/thsice: a step toward the use of non-linear
1121      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1122    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1123      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1124      in natl_box (affects results @ truncation level: update output.txt)
1125    o multi-threading and IO:
1126      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1127      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1128        (needed to work with SingleCpuIO): tested in all verif. exp.
1129    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1130      affects the results (but none of the verification test uses this scheme).
1131    o Adding some pkg/diagnostics capability to pkg/seaice
1132      (will certainly be subject to changes)
1133    o ctrl: adding new control variables:
1134      lwflux, lwdown, evap, snowprecip, apressure, runoff
1135    
1136    checkpoint58q_post
1137    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1138      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1139      high_res_cube configuration by 4% on Columbia.
1140    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1141      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1142      dynamical allocation (seems to work in multi-threaded).
1143    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1144      single CPU io) so that TAF does not have to see EESUPPORT.h
1145    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1146    
1147    checkpoint58p_post
1148    o obcs: stop if obcs is used with useCDscheme = .true.
1149    o shelfice:
1150     - fix a sign error so that no slip at shelfice interface works
1151     - remove stop for combination non-hydrostatic code and shelfice. That does
1152       not mean, that the results are correct, but at least they are numerically
1153       stable
1154    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1155    o added adjoint exch routined for all exch*3d* routines
1156      and updated flow directives
1157    
1158    checkpoint58o_post
1159    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1160      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1161    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1162      and clean-up reading/writing of pickup files.
1163    o fix local version of read/write pickup (NH part) in rotating_tank/code
1164    o simplify EXCH interface:
1165     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1166     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1167    o added the regrid package
1168    o shelfice:
1169     - add a simple boundary layer scheme to reduce noise
1170     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1171    
1172    checkpoint58n_post
1173    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1174       local variable (not in common block).
1175    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1176      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1177      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1178        to work with SingleCpuIO.
1179    o add "_d 0" to real constant of pkg/cfc subroutines ;
1180       update exp. cfc_exemple & tutorial_cfc_offline output files.
1181    o multi-threading and IO:
1182      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1183        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1184      - barrier before and after reading.
1185      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1186      - avoid using MDS_WRITELOCAL for LAND pkg output.
1187      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1188        common-block variables ; Allows multi-threading with master-thread IO.
1189    o change default MAX_NO_THREADS from 32 to 4 ;
1190      and stop cleanly when MAX_NO_THREADS is too small.
1191    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1192    
1193    checkpoint58m_post
1194    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1195       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1196    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1197       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1198       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1199    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1200        add MITgcm_tutorials (= code + all the tutorials)
1201    o ecco, option to compute cost for total ssh (mean+anom)
1202    o consistent with addition of ptracer and ssh in pkg/profiles
1203    o profiles: adding ptracer and ssh
1204    o testreport: change multi-test output-file name
1205      (from output.txt.{name} to output.{name}.txt)
1206    o profiles: now ok for mutli-tiles case
1207    o seaice: add 4 parameters for different advection schemes for area,
1208      (effective) seaice thickness, enthalphy, and snow height. Their default
1209      is the standard parameter SEAICEadvScheme
1210    o calc_gw:
1211     - add cosFacU in zonal viscous flux (harmonic.visc.).
1212     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1213       of tutorial_plume_on_slope.
1214    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1215    o calc_gw: true flux-form, account for horizontal grid spacing.
1216      update rotating_tank results, but not plume_on_slope (affected at
1217      truncation level, 11 digits).
1218    
1219    checkpoint58l_post
1220    o calc_gw:
1221     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1222     - remove side-drag for now (need to fix it); update plume_on_slope results.
1223     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1224    o commit code to make SST/SSS weights spatially variable
1225      (based on either variable in-situ or variable initial T/S weights)
1226    o pkg/ecco:
1227      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1228        now based on horizontally varying weights wthetaLev, wsaltLev
1229      * cost_averagesflags now returns year indices in addition to day, month
1230      * sflux balance is performed on annual basis
1231        (sflxumm, sfluxmm2, bal_sfluxmm)
1232      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1233        including separate counting and multipliers
1234    o pkg/rbcs
1235      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1236    
1237    checkpoint58k_post
1238    o testreport:
1239     - always build in dir. "build" (if not there, mkdir build instead of building
1240       & running in input)
1241     - run in dir run (if it exists), in build otherwise.
1242     - call prepare_run (if input/prepare_run exists)
1243     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1244    o pkg/exf modifications to interpolation and rotation routines for more
1245       reasonable treatment of North Pole singularity: for tracers North Pole
1246       value is set to northernmost zonal-mean value, for zonal velocity it is
1247       set to zero, and for meridional velocity it is set to northernmost value.
1248    o pkg/exf/exf_check_range.F
1249     - add tile index to diagnostics and move stop statement to the very
1250       end of the routine.
1251    o pkg/diagnostics: (diagnostics_main_init.F)
1252      define title of isomorphic variables according to the current config.
1253    o pkg/thsice with pkg/seaice dynamics:
1254    - fix domain of computation (interior only, required for exf) and do exchanges
1255    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1256    o towards a standard way of dealing with multi-threading in MONITOR
1257      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1258    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1259       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1260    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1261    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1262    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1263       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1264    o tracer advection:
1265     - clean-up and simplify calc_common_factors.F
1266     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1267       advection subroutine (but still not used within DST advection S/R)
1268    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1269    
1270    checkpoint58j_post
1271    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1272      from file (collects calls previously in FORWARD_STEP)
1273    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1274    o adjoint store dir. adjusted accordingly
1275    o genmake2
1276      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1277    
1278    checkpoint58i_post
1279    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1280      on wind stress (SEAICEstressFactor defaults to 1.)
1281    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1282      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1283    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1284      on CS-grid: no longer loosing mass.
1285    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1286    o pkg/ggl90: fix sloppy output and fix a bug
1287    o pkg/seaice: added SEAICEuseEVPpickup parameter
1288      - Set to false in order to start EVP solver with
1289        non-EVP pickup files when using SEAICEuseEVP
1290      - fix sign error in diffusion in seaice_calc_rhs
1291    
1292    checkpoint58h_post
1293    * Modifications for bottom topography control
1294      o replace hFacC by _hFacC at various places
1295      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1296      o add non-self-adjoint cg2d_nsa
1297      o update autodiff support routines
1298      o re-initialise hfac after ctrl_depth_ini
1299      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1300    * Adding verification for 5x5 box (4-layer) bottom topography control
1301    
1302    checkpoint58g_post
1303    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1304       used for mean seasonal cycle, mean diurnal cycle); add an example
1305       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1306    o pkg/ggl90:
1307      - add parameter (minimum surface kinetic energy)
1308      - fix bug (avoiding division by zero)
1309    o couple pkg/thsice to pkg/seaice:
1310      - modify advection in seaice to accomodate new scalar fields to be advected
1311      - only muliDimAdection scheme work with seaice/thsice
1312      - mapping of thsice-variables to seaice-variables, back and forth
1313      - does not break the verification experiments, but does not give the
1314        desired results either
1315    o pkg/seaice
1316      - make (default) second order advection a bit less confusing?
1317    
1318    checkpoint58f_post
1319    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1320      to pkg/seaice):
1321      - new routines thsice_map_exf and thsice_get_exf provide the interface
1322      - add an additional formal parameter to thsice_solve4temp
1323    o pkg/exf:
1324      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1325      - correct Stefan-Boltzmann constant
1326      - new parameter for longwave surface emittance
1327      - separate some stuff from exf_bulkformulae into new routines  
1328        exf_radiation, exf_wind
1329      - add new parameters and constants: longwave emissivity for ocean, ice
1330        and snow, evaporation parameters over ice
1331      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1332        either wind from stress or stress from wind
1333    o pkg/thSIce:
1334    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1335    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1336       and THSICE_CALC_THICKN
1337    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1338    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1339      to make debugging easier.
1340    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1341    o pkg/bulk_force:
1342      - clean-up comments and parameters ;
1343      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1344    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1345      generate new output for test-experiment: aim.5l_cs.thSI
1346    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1347      testreport accordingly
1348    
1349    checkpoint58e_post
1350    o SEAICE_CGRID adjoint done
1351    o R_STAR adjoint implemented.
1352      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1353      * need to sort out init. of h0facc, etc.
1354    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1355      to be able to use it in pure forward.
1356    
1357    checkpoint58d_post
1358    o upgrade simple test-experiment to tutorial example:
1359     step.1: duplicate the experiment and (step.2) will remove the old copy.
1360      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1361      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1362      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1363      tutorial_global_oce_biogeo    <- copy of dic_example
1364      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1365      tutorial_plume_on_slope       <- copy of plume_on_slope
1366      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1367      tutorial_global_oce_optim     <- empty for now (David ?)
1368      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1369     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1370    o correct a sign problem in cost_scat.F
1371    o obcs and ptracers: fix boundary conditions for advections schemes
1372      with larger stencil
1373    o thsice adjoint: start
1374    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1375      completeness
1376    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1377      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1378    o ptracers adjoint:
1379      * avoid extensive recomputatations
1380      * fix missing re-init. of gptr (missed by TAF)
1381    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1382      me to turn off the excessive output to STDOUT that this package produces
1383    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1384      and add those terms in Vector-Invariant formulation.
1385    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1386      if the control period (xx_hfluxperiod etc) is 0
1387    o in profiles pkg, clean routines and fix details
1388    o in ecco pkg, reading ssh data:
1389      fix problem in case the model does not start at iter0=0
1390    o fix mnc-pickup/restart for ptracers
1391    o new package prifiles:
1392      code to compute profile-based cost by Gael Forget
1393      (modifs in ecco, ctrl, autodiff)
1394    o Benign bug fix in initialization (spotted by M. Mazloff) of
1395      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1396    
1397    checkpoint58c_post
1398    o adjoint: finish NLFS adjoint and provide reference output in
1399      verification/global_ocean.90x40x15/results_ad_nlfs
1400    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1401      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1402      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1403      with SEAICE_CGRID defined.
1404    o move calendarDumps from "data" to "data.cal" and clean-up the code
1405      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1406    o add useEXF & useCAL flags (for now, set in hard-coded way)
1407    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1408      (were missing in NH mode, and wrong in quasihydrostatic mode).
1409      waiting for Chris updated version of calc_gw to add those CALLs.
1410    o fix bug in quasihydrostatic S/R ;
1411      add a test for this option: global_ocean.90x40x15.qshyd
1412    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1413      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1414    o add on/off flag useOffLine for package OFFLINE
1415    o seaice:
1416      - modify advection so that it works also on the C-grid
1417      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1418        problem in multi-tile runs with C-grid
1419      - add flags for clipping ice velocities and/or masking solver forcing
1420      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1421        C-grid solver
1422      - added a few comments to seaice_diffusion.F
1423      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1424        are now exclusive)
1425      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1426        required re-ordering the code a little:
1427       + make DAIRN global variable (defined in SEAICE)
1428       + move computation of the viscosities eta and zeta into a new separate
1429         routine (because I need to recompute them in seaice_ocean_stress.F)
1430    
1431    checkpoint58b_post
1432    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1433      update output.txt of exp. aim.5l_cs.thSI
1434    o various mnc cleanups and improvements:
1435      + shrink lookup tables by factor of ~4
1436      + better error reporting when running out of lookup space
1437      + able to handle longer path/file names (up to 500 chars)
1438    o adjoint:
1439      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1440      - TBD: "hidden" mom_vecinv recomp. in dynamics
1441    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1442     (allow to differentiate between forcing components using new integer flags:
1443      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1444     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1445    o ecco
1446      - enable trend removal from SSH anomaly obs.
1447    o adjoint
1448      - a fix for PmEpR when #undef EXACT_CONSERV
1449      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1450      - try to fix "hidden" recomp. in forward_step for NLFS
1451        (NLFS seems broken sometimes after I checked it in)
1452    o seaice:
1453     - add c-grid version of the dynamic solver:
1454       + three new routines that are the c-grid substitute lsr, dynsolver
1455         and ostres
1456       + put a few fields that were local to dynsolver into global common
1457         blocks, so that I can move the computation of stresses etc into
1458         seaice_lsr (saves coding but may break the adjoint).
1459     - replace more hardwired parameters by runtime parameters
1460     - add ice masks that mask the rhs of the implicit solvers where there
1461       is no ice (commented out in seaice_dynsolver, because i am not sure
1462       if this works properly), eventually this should replace the clipping
1463       of ice velocities in seaice_dynsolver to +/-40cm/s.
1464    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1465      include it only where its needed
1466    o move balancing of fluxes before the call of external_forcing_surf
1467    o seaice:
1468      - correct units of turning angles (now they are really in degrees)
1469      - move computation of GWATX/Y out of main routine into dynsolver
1470      - initialize GWATX/Y in seaice_init
1471    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1472      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1473    o seaice: add runtime flags for turning angles (default to zero)
1474    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1475      and trend from exf forcing and ctrl control adjustments
1476    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1477      (since checkpoint57x_post)
1478    o change the default rotation period to 86164.s = the Earth rotation
1479    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1480      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1481    o seaice advection: add code for choosing between the default (2nd order
1482      central differences) and multiDim advection schemes provided by
1483      pkg/generic_advdiff
1484    o seaice:
1485      - removed all references to SEAICE_GRID.h fields from
1486        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1487        (cubed-sphere configuration will change a little)
1488      - grid computations in seaice_init are obsolete now.
1489      - cleaned up code a little so that is easier to read (hopefully).
1490      - added new (better?) discretizations of default advection and diffusion
1491        (turn on with SEAICEuseFluxForm)
1492      - replace 1 in 3d global fields by kSurface in growth.F
1493      
1494    checkpoint58a_post
1495    o seaice:
1496      - bug fix in advect.F
1497    o shelfice:
1498      - separate shelfice load anomaly from pload (breaks with time
1499        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1500        Its default is 0., but it may be computed more cleverly from (unknown)
1501        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1502        done offline. A good approximation of the pressure load anomaly is
1503        necessary to avoid large initial adjustment processes underneath
1504        deep-reaching shelfice.
1505      - small fix in ISOMIP shelfice_thermodynamics
1506      - add more sophisticated thermodynamics of Hellmer (1989), this is
1507        now the default
1508      - give a few constants more intuitive names
1509    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1510      if bulk formulae are used in long integration (especially EmPmR). Turn
1511      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1512      if balancePrintMean, the imbalance that is substracted is printed to
1513      STDOUT.
1514    o fix bug (typo) in obcs_apply_eta.F
1515    o add a new package shelfice which enables us to model the circulation
1516      underneath shelf-ice with draughts of hundreds of meters.
1517     - works
1518     - to do: + include improved thermodynamics
1519              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1520                instead of new field kTopC
1521              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1522                instead of new field R_shelfIce and new code in ini_depth.F
1523                and ini_mask_etc.F?
1524              + adjust vertical mixing schemes?
1525    o seaice pkg:
1526     - add a cpp-flag to include a simple formula for a salinity dependent
1527       freezing point of sea water at the surface
1528     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1529       meridional stresses are now different (and hopefully correct)
1530    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1531       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1532       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1533    o pkg/diagnostics: add options and parameters for regional-statistics
1534       diagnostics ; define regions by reading a region-mask from a file
1535       (might add other options later)
1536    o pkg/bulk_force:
1537     - add option and parameters to use AIM surface-flux formulae.
1538     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1539       others forcing fields (defined in PARM05, parameter file "data") are loaded
1540       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1541     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1542     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1543     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1544       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1545     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1546    
1547    checkpoint58
1548    o add "--embed-source" option to genmake2 which, when the supporting
1549      tools can be compiled (as determined by genmake2) will turn on the
1550      embed_files package which then embeds the entire MITgcm source code
1551      (*.[fFhc] + Makefile) used for the build within the executable
1552      - requested by CNH but off by default
1553      - adds a paltry <9MB to the mitgcmuv executable in most cases
1554      - only writes the output when useEMBEDSRC in eedata is true
1555    o clean up 3-dim. relaxation codes:
1556      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1557      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1558      * Thanks to Tom Haine for testing!
1559    
1560    checkpoint57z_post
1561    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1562      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1563    o fix the pickup behavior for obcs in combination with ptracers
1564    o fix a bug in ptracers_external_fields_load
1565    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1566      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1567    o transfered surface NH pressure to eta field (if exactConserv).
1568    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1569         and update lab_sea output.txt file.
1570    o completing 3-dim. relaxation code: additional term
1571         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1572      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1573      * At compile time, in "EXF_OPTIONS.h" set
1574          #define  ALLOW_CLIMTEMP_RELAXATION
1575          #define  ALLOW_CLIMSALT_RELAXATION
1576      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1577          tauThetaClimRelax3Dim = 15552000.0,
1578          tauSaltClimRelax3Dim  = 15552000.0,
1579      * 3 cases:
1580          1) Use a constant-in-time 3-dim. field
1581          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1582          3) Real-time relax. to time-evolving prescribed field
1583    o Adding Laplacian-type smoothness constraint on
1584      initial and boundary (forcing) controls (ic, bc)
1585      * enable at compile-time via
1586        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1587      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1588      * Absolute scale somewhat unclear so far
1589      * no area weighting was included since no other cost term does so far
1590    
1591    checkpoint57y_post
1592    First step for a NLFS adjoint
1593    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1594    o new init. routines for calc_r_star, calc_surf_dr
1595    o still need to deal with ini_masks_etc
1596    o testreport seemed happy
1597    checkpoint57y_pre
1598    
1599    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1600    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1601    o add new offset feature to offline pkg (plus minor cleanup)
1602    o cfc fixes for final year of integration
1603    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1604      be in GCHEM_OPTIONS).
1605    
1606    checkpoint57x_post
1607    o fix testreport Pb in multiple test experiment.
1608    o cleanup our namelist syntax in verification:
1609      - make it more F95 standards compliant (some work still needed)
1610      - allows the vast majority of our tests to work with gfortran
1611    o Non-Hydrostatic:
1612     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1613     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1614    o Allow to apply AB on T,S rather than on AB(gT,gS):
1615     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1616     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1617       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1618     - need a "clever" read_pickup to restart from the other AB formulation
1619    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1620    o remove some unused variables (reduces number of compiler warnings)
1621    o adjoint
1622      * Disable useVariableViscosity for adjoint for time being
1623        (there are a number of extensive recomputations)
1624      * Initialize certain variables needed for adjoint
1625    
1626    checkpoint57w_post
1627    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1628                 fix the singleCpuIO RS version of MDSWRITEFIELD
1629       and add a WARNING if using globalFiles=T with multi-processors.
1630    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1631      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1632    o tracer advection scheme:
1633      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1634       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1635       was not very convenient).
1636      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1637       (further tests needed for the implicit DST & Flux-Limiter schemes).
1638    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1639      and sRef for convenience, handy, when you want to initialize
1640      ptracers in a large domain with a constant non-zero value. Also,
1641      untangle ptracers_init.F a little.
1642    
1643    checkpoint57v_post
1644    o change dome exp. to use variable viscosity in side-drag terms.
1645    o remove all the files from the cfc_offline test since they are now
1646      incorporated into tutorial_cfc_offline which has been producing
1647      identical results for a few days of testing
1648    o add new parameter: sideDragFactor to enable half-slip-side BC
1649      and change side-drag S/R to use viscosity from mom_calc_visc
1650      (can switch back by setting sideDragFactor=0.); affects results at
1651      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1652       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1653    o vorticity & strain are now computed without masking, to account for
1654      no-slip-side BC in variable viscosity calculation ; mask is applied
1655      anyway later on, before computing advection/coriolis terms.
1656    o modify exp4 to test new obcs support for reading from external files
1657      and for passive tracers
1658    o fix behavior of ptracers_monitor when monitor output is written to a
1659      netcdf-file; still not independent of monitor.F (writes in the same
1660      file).
1661    o change default value of tRef (put a uniform, meaningful value for ocean
1662      & atmos) and initialize sRef (was missing, as Martin mentioned).
1663    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1664      to be proportional to enstrophy dissipation length.  Thus,
1665       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1666      This is now consistent with Smagorinsky and with the manual.
1667    
1668    checkpoint57u_post
1669    o OBCS and PTRACERS: add open boundary support for passive tracers
1670      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1671        OB-values from file; this is not different from the way theta and salinity
1672        are treated
1673      - however, Orlanski-radiation conditions are not supported, and the model
1674        will stop if you use pTracers and Orlanski at the same time.
1675      - beefed up the rountine obcs_external_fields_load: now only those open
1676        boundary values are overwritten with values from files for which there
1677        are really files, otherwise the OB-fields remain untouched. This makes
1678        it possible to use different OBs at different ends of the domain (as
1679        with EXF)
1680    o reduce number of exch calls in shap_filt (s2).
1681    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1682      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1683    
1684    checkpoint57t_post
1685    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1686    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1687      same truncation, independent of the face number: affects affects several
1688      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1689    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1690      note that biharmonic viscosity + no-slip was not tested in any experiment.
1691    o fix bug in non-linear free-surf side-drag ; generate new output for
1692      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1693    o make mnc honor the writeBinaryPrec flag for most kinds of output
1694    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1695    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1696      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1697    o add brackets in multi-terms sum to get same truncation, independent of
1698      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1699      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1700    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1701      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1702      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1703      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1704      Suggested values of viscosity parameters found in mom_calc_visc.
1705      Many new viscosity diagnostics available.
1706    
1707    checkpoint57s_post
1708    o Add clearing-house for viscosity calculations, mom_calc_visc and
1709      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1710      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1711      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1712      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1713      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1714      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1715      ViscAhStrain and viscAhTension are now retired.
1716    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1717    o In response to JMC's bug report, genmake2 now ignores any soft-links
1718      that it finds in the *current* directory when searching for files.
1719      Soft-links found in any other source directories will still work as
1720      they did before.
1721    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1722      a C routine to unlimit the stack size
1723    o mnc-ify pkg/aim snapshot vars
1724    o mnc-ify pkg/land as requested by Daniel
1725    o various changes to mnc including:
1726      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1727      - output can now be grouped so that all files within a group
1728          change the ITER portion of their names in lock-step together
1729      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1730          and works with both EXCH1 and EXCH2 (but needs more testing)
1731      - writing works for all verification test cases w/ g77 on Linux
1732    
1733    checkpoint57r_post
1734    o make MNC variable initialization happen earlier
1735    o add diagnostics for (almost) each term of the momentum Eq.
1736    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1737    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1738    o remove MINIMAL_TAVE_OUTPUT option ;
1739      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1740    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1741      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1742    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1743    o add time-dependent SST, SSS control
1744    o cost terms in ecco/ modularized (new cost_generic.F)
1745    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1746    o new infrastructure for seaice model vs. obs misfits in seaice/
1747      * driver from the_main_loop.F is seaice_cost_driver.F
1748      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1749      * gradient check in Exp. 6a of natl_box_adjoint/
1750    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1751      (see README file)
1752    
1753    checkpoint57q_post
1754    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1755    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1756      - bug was reported by Jean-Michel and Ian Fenty
1757    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1758      update exp. cpl_aim+ocn output.
1759    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1760      Needed for high-res. runs with large global files
1761      to be able to limit tapelev size
1762    o Changed some tests for adjoint:
1763      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1764      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1765      * global_ocean.90x40x15/ back to default 3-level checkpointing
1766    o Modifications to enable scripted COMMON to MODULE conversion
1767      * verification/OpenAD/code/ has necessary scripts and description;
1768      * converts, compiles and runs successfully;
1769    
1770    checkpoint57p_post
1771    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1772    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1773      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1774    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1775    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1776      (was already the case for dissipation with mom_vecinv,
1777       and also the case for grad.PhiHyd when staggered-timeStep)
1778      This will allow to put dissipation out-off the AB time-stepping.
1779     Unfortunately, affects truncation error. Update output of exp. that "fails"
1780      (cg2d matching number) and leave the others for later: front_relax(10),
1781      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1782      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1783    
1784    checkpoint57o_post
1785    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1786      (2) its ready to be documented during the 20050801 DocFest
1787    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1788      for ideal_2D_oce and lab_sea on linux_ia32_g77
1789    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1790      in global1x1_tot/code_seaice_adj to access indices 32, 33
1791      (worth another tag)
1792    
1793    checkpoint57n_post
1794    o adding precip control xx_precip 32
1795    o adding swflux control xx_swflux 33
1796    o Replacing 10 forcing penalty cost routines by 1 generic.
1797    o Implementing partitioning in time-mean and variable adjustment
1798      for atmos. state.
1799    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1800  o in natl_box_adjoint:  o in natl_box_adjoint:
1801    * updated: results_bulk/    * updated exp 1 to 10
1802    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1803    o updated global1x1/*_seaice_adj/
1804      to incorporate latest changes
1805    o enable useSingleCpuIO for mdsio vector routines
1806      (applies in particular to tapelev I/O)
1807    o removed inefficient K-loop in all active_file*control*.F
1808    
1809  checkpoint57m_post  checkpoint57m_post
1810  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
# Line 591  o add two new packages Line 2387  o add two new packages
2387    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2388    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2389      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2390      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2391  o add offline package  o add offline package
2392  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2393    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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