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revision 1.682 by jmc, Mon Jun 19 01:06:57 2006 UTC revision 1.1046 by jmc, Wed Dec 3 02:45:22 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/flt:
8      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
9       + make OPTIONS file more standard.
10      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
11      - fix _BYTESWAPIO CPP-Flag
12      - standard reading of file-parameter "data.flt"
13      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
14    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
15    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
16      a still unfixed compiler/optimization bug
17    
18    checkpoint61f
19    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
20      update results of global_ocean.cs32x15.icedyn test.
21    o move getcon.F from model/src to pkg/fizhi.
22    o pkg/exf: add parameter for extrapolation of temp up to the surface
23       and option to prevent negative evap (in bulk_largeyeager04 only).
24    o Prather Advection scheme: fix tracer conservation for divergent flow
25      (e.g., when using NonLin Free-Surface).
26    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
27    o gmredi (Visbeck-variable-K):
28     - add more parameters to Visbeck-variable-K.
29     - use a 5 points average for dSigmaR in Visbeck-K calculation
30       (more "homogenous": same stencil and same weights as in dSigmaH)
31     - update output of ideal_2D_oce experiment.
32    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
33      (#undef REAL4_IS_SLOW)
34     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
35       coordinate variable
36     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
37       (surface forcing fields), removes some of the functionality
38     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
39     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
40       probably not all: copy _RS surface flux fields to RL field before
41       calling DIAGNOSTICS_FILL
42     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
43       real*4 (CALL EXCH_*_RS) versions.
44     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
45       (generate new output).
46    
47    checkpoint61e
48    o gmredi (Visbeck-variable-K):
49      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
50      - change computation of Visbeck-K where Slope > Smax :        
51        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
52        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
53    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
54      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
55    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
56    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
57      does not become too large (to avoid precision problems in implicit-diffusion
58      solver); update ideal_2D_oce output.
59    o pkg ggl90:
60      - in ggl90_cal.F: compute only one set of visc/diff, used to
61        step forward TKE/T/S/momentum
62      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
63        have Prandlt =1)
64    o gmredi (fm07):
65      - add lower limit on Transition layer thickness + lower limit on 1/lambda
66      - allow to set few more params from data.gmredi
67    o pkg ggl90:
68          - add missing sqrt(2) factor in computation of mixing length
69            scale in ggl90_calc.F
70            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
71    
72    checkpoint61d
73    o adjoint modifs
74      - adapt to new field rhoInSitu
75      - allow to revert from StoreDynVars2D, StoreDynVars3D
76        to individual fields
77        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
78    o store 3-D (in-situ) density in commom block (DYNVARS.h)
79     - save 1 rho computation.
80     - no longer modify T & S inland when using down_slope pkg.
81    o gad_som : allow to switch to SOM advection for T & S without corresponding
82      pickup files (using new S/R: MDS_CHECK4FILE).
83    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
84      (for useSingleCpuIO to work in multi-threaded)
85    o pkg/shelfice:
86     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
87       with SHELFICEtopoFile in data.shelfice
88     - move code for reading ice shelf topography and modifying hFacC into separate
89       subroutines of the shelfice package
90     - separate initialisation of "fixed" and "variable" variables
91     - kTopC is not (yet) replaced by kSurfC, although this is possible
92    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
93    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
94      and rename:
95      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
96      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
97    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
98    
99    checkpoint61c
100    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
101      to add mass source/sink of fluid in the interior (3-D generalisation
102      of oceanic real-fresh water flux).
103    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
104    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
105    o new pkg: down_slope
106      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
107      - presently, modify T & S inland (dwnslp_calc_rho.F).
108        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
109      - implementation for ocean in P-coords not tested.
110      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
111    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
112      (to facilitate conversion of oceanic pkg to p-coordinate).
113    o change FIND_RHO to FIND_RHO_2D :
114      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
115    o new pkg: cheapaml
116    
117    checkpoint61b
118    o exch2:
119      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
120      - no longer depend on the order sequence (N,S,E,W).
121      - 3rd exchange no longer needed (tested with 24 tiles).
122      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
123      - exch_UV_A-grid readily available (but not yet tested).
124      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
125      (both are no longer needed) in exch_uv: no effect in forward run; but
126       get truncation error differences with adjoint exch.
127    o exch2:
128     - change index-bounds storage (moved from target to local tile,
129       more intuitive this way) ; rename/remove some variables.
130     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
131    
132    checkpoint61a
133    o exch2/matlab-topology-generator:
134      fix bug in index bounds for N-S internal exchange (hard to tell if this
135      had any effect on the solution).
136    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
137      is exceeded
138    o testreport: modify syntax of awk, so that it works also with
139      awk, and not only with nawk and gawk
140    
141    checkpoint61
142    o autodiff
143      Change default for TAF usage by removing argument '-nonew_arg'
144      This changes TAF subroutine argument list (ordering of active var.)
145      Omission of this flag leads to incompatibility w.r.t. TAMC
146      To restore TAMC-compatibility, need following modifs:
147      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
148      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
149      Tested TAF version is 1.9.22
150      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
151    
152    checkpoint60
153    --->>> This is the last checkpoint for which generating the adjoint
154    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
155    --->>> by default.
156    --->>> Future checkpoints will ommit this flag by default.
157    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
158    o pkg/grdchk: Add gradient check to etan0 perturbations.
159    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
160    o pkg/autodiff: more flexibility in zeroadj.
161      model/src: modifying do_oceanic_phys.F accordingly.
162    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
163    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
164      special setup of gmredi for which the adjoint is stable
165      enough for parameter optimization.
166    o bridging the gap between eddy stress and GM.
167      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
168          along with a change in CPP option (now ALLOW_EDDYPSI).
169      -> when using GM w/ GM_AdvForm:
170          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
171          is applied either in the tracer Eq. or in momentum Eq.
172          depending on data.gmredi (intro. GM_InMomAsStress).
173      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
174      The key modifications are in model/src/taueddy_external_forcing.F
175      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
176    
177    checkpoint59r
178    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
179      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
180      fix option to read coriolis(@ cell-corner) from files with CS-grid.
181    o pkg/mnc: add some attributes to standard 1D-coordinate variables
182    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
183      mass points, when using mnc for output
184      - add runtime parameter (missing_value, missing_value_int) to override
185        default (which is the value of getcon('UNDEF'))
186    o pkg/mnc: prepare mnc for the actual use of missing values with the
187      diagnostics package: small fix in mnc_cw_readwrite.template and more
188      initialisation of never used fields
189      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
190      versions
191    o pkg/thsice/thsice_ini_vars.F added default initial values so that
192      thermodynamics sea ice solver does not blow up when some initial fields
193      are missing.
194    o move from external_forcing_surf.F to ini_forcing.F
195      the p-coord. hack consisting in using pLoad to set phi0surf ;
196      update output of tutorial_global_oce_in_p (affected @ truncation level).
197    o Freshen up a bit hs94.1x64x5, notably:
198      remove rotationPeriod and tRef=5*0. (adjoint only), and add
199      exactConserv=.TRUE.
200    o pkg/generic_advdiff:
201      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
202      applies to files where Temperature & Salinity 2nd Order moments are used.
203    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
204      this uses a dynamically allocated internal state data structure
205      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
206      and requires a fortran 90 compiler
207    
208    checkpoint59q
209    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
210       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
211    o Refresh tutorial_global_oce_biogeo, notably:
212      - change bathymetry (put back seamounts in ACC, use hFacs)
213      - change EOS (POLY3 --> JMD95Z)
214      - use Bryan-Lewis vertical diffusivity
215      - use multidimensional advection
216      - remove old virtual virtual in dic pkg, now done through ptracer pkg
217      - change a couple of parameters in dic pkg
218    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
219    o pkg/obcs: change default to OBCSfixTopo = .true.,
220      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
221      - replace "debugMode" with "debugLevel .GE. debLevB"
222    o implementation of TAF directives for gchem,cfc,dic
223    o remove "exp5" (replaced by tutorial_deep_convection).
224    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
225      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
226      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
227      --> changes results in exp4, seaice_obcs
228    o tutorial_deep_convection :
229      update the set-up and increase resolution and domain size ; start
230      from pseudo initial conditions = output at t=120mn in order to see
231      something happening when running testreport.
232    o pkg/seaice: add os7mp as an advection scheme
233                  add check for advection schemes
234                  add a flag for restoring T and S underneath sea ice
235    o pkg/my82: add netcdf-support and diagnostics
236    o thsice pkg:
237      - Now hsMax limits snow height by turning it into ice following
238        flooding scheme (and now conserving energy)
239      - Slight rewriting of the formula in thsice_calc_thick.F
240      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
241      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
242    
243    checkpoint59p
244    o gchem / dic / cfc :
245      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
246      - add new parameter files: "data.dic" & "data.cfc" ;
247      - various re-arrangement in initialisation & header file ;
248      - fix tutorial_global_oce_biogeo for multi-threaded test.
249    o pkg/dic: test for "pickup_dic" file when restarting ;
250      if no pickup-file, can restart with a re-initialised pH (same as it did
251      before) providing pickupStrictlyMatch is set to False.
252    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
253      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
254    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
255      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
256    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
257     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
258       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
259    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
260       scheme to use for vorticty-term ;
261     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
262       (with default selectVortScheme, return to original discretisation)
263     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
264    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
265    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
266      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
267      also fix diagnostics VISCAHW & VISCA4W.
268    
269    checkpoint59o
270    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
271    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
272      move a few statemens out the main loop into separate loops
273    o pkg/shelfice:
274      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
275        (kg/m^2/s), does not break tests, because in verification/isomip,
276        rhoConstFresh=rhoConst (by accident)
277      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
278      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
279        new file model/src/seawater.F, so that they are available for all pkgs.
280      - convert potential temperature into in-situ temperature. This changes the
281        isomip tests => update tests
282    o add a flag writePickupAtEnd (default=true) to be able to suppress
283      writing a pickup at the last timestep
284    o tools/mpack-1.6 :
285      - disable automake (not working) and autoconf (not needed).
286      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
287        also cleaner with much less compilation warnings.
288    o pkg/profiles:
289      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
290      (for "less than 32 characters name" compiler requirement)
291    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
292      conditions that have a different sampling frequency than S/T/U/V obcs
293    o pkg/diagnostics (stats-diags):
294      - fix global Min/Max in case 1 processor get only empty tiles
295    o genmake2: replace (4 times)
296         make genmake_tc_1.o >> genmake_warnings 2>&1
297      with
298         COMM="$CC $CFLAGS -c genmake_tc_1.c"
299         echo $COMM >> genmake_warnings
300         $COMM >> genmake_warnings 2>&1
301      to make genmake2 always see the value of CC as specified in the optfile.
302    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
303      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
304      - modify verification advect_cs test to test SOM-advection on CS-grid.
305    o pkg/ctrl:
306      - Rewrite of ctrl_map_ini_ecco.F,
307        introducing a generic routine (ctrl_map_ini_gen.F).
308      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
309    
310    checkpoint59n
311    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
312      number in dedicate array "hdiag":
313      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
314        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
315      - many small changes (integer format) for large number of diagnostics
316      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
317        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
318    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
319      usingSphericalGrid, this allows to define the rotated grid coordinates
320      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
321      geographical coordinates according to the inverse of the rotation defined
322      by the Euler angles, so that Coriolis parameter and online-interpolation by
323      exf works with the geographical coordinates on XC/YC/XG/YG.
324      Naturally, this feature does not work with all packages, so some
325      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
326      profiles), because there the coordinates are assumed to be regular
327      spherical grid coordinates.
328    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
329      - introduce isopycnal diffusion coefficient control.
330    o tools/adjoint_options:
331      - additional control vector components.
332    o pkg/mnc: have mnc create marginally meaning full coordinate variables
333      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
334    o pkg/mypackage:
335      - add example of read/write pickup for state-var ;
336      - add entry points to the main code for state-vars diags & write-pickup.
337    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
338      transitions for useExfYearlyFields
339      - add new subroutine that determines the file to read from for
340        use*YearlyFields = .TRUE. and .FALSE.
341      - add a verification experiment to global_with_exf that tests
342        useExfYearlyFields with USE_EXF_INTERPOLATION defined
343    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
344      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
345      subroutines (which could be generated from a template, because they are
346      almost identical), for now they are included in obcs_prescribe_read.F for
347      simplicity
348    o pkg/exf:
349      - add a little more diagnostic to exf_interp_read (in analogy to
350        mds_read_field, can be turned off with debugLevel < debugLevA=1)
351      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
352        ugly but fast by unrolling short inner loops, inserting a unroll=8
353        directive in routine lagran, and splitting a loop and making do while the
354        outermost loop (the latter requires the intoduction of index arrays)
355    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
356    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
357      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
358    o verification/seaice_obcs: updated for restart test and latest options
359    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
360      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
361      for now this is only available for the C-grid code and also within
362      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
363    
364    checkpoint59m
365    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
366      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
367    o gad_som : fix flux output (& diagnostics) to have same units as other  
368      advection scheme fluxes (was previously multiplied by deltaT).  
369    o added verification/seaice_obcs both to test seaice open boundaries
370      and to provide an example matlab scrpt for generating them
371    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
372    o pkg/salt_plume: clean up salt_plume_frac.F to
373      remove redundancy in PlumeMethod 1 and 4
374    o pkg/kpp: added saltplume diagnostics
375    o pkg/obcs and pkg/seaice:
376      - do not set uice and vice to zero when OB*icefile are unspecified
377      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
378      - moved seaice tracer obcs after call to seaice_growth
379    o pkg/salt_plume: added various options for salt plume depth
380      criterion and for vertical distribution of the salt
381    
382    checkpoint59l
383    o pkg/ptracers: new version of ptracers pickup:
384      read meta file and write only fields which are needed to restart.
385      ( same logic as main pickup file ; also using pickupStrictlyMatch )
386    o pkg/seaice:
387      - add timescale for melting due to warm mixed layer as a means of
388        setting SEAICE_availHeatFrac more conveniently
389      - add a CPP-flag/runtime parameter check for flooding algorithm
390      - reformulated availHeat in seaice_growth.F to be independent of AREA
391    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
392      unit changes
393    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
394    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
395      SX vector computer.
396    o pkg/seaice:
397      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
398        seaice forcing fields can now be read only through pkg/exf
399      - removed some unused halos
400    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
401    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
402      or U/VICE from U/VWIND before computing U/VSTRESS
403    
404    checkpoint59k
405    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
406      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
407    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
408      all experiments pass when compile with un-initialised var. checking option.
409    o added pkg/salt_plume
410    o script to test restart (for now, in MITgcm_contrib/jmc_script)
411    o pkg/seaice: new read/write pickup version.
412      read meta file and write only fields which are needed to restart.
413      ( same logic as main pickup file ; also using pickupStrictlyMatch )
414    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
415    o lab_sea.hb87: modify the domain & update output.hb87.txt :
416      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
417      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
418      process. Fixed here by closing the domain at the Northern boundary.
419    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
420    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
421      a set of consecutive levels in/from a 3-D array.
422    o pkg/ptracers:
423      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
424      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
425    
426    checkpoint59j
427    o in pkgs: dic, obcs, offline, rbcs:
428      standard way to compute coeff. for time interpolation between 2 time reccords
429      which retains full precision (& make results less dependent on compiler).
430      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
431    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
432      packages instead of reading ice cover and wind speed separately
433    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
434     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
435      to allow to compile customized code before the update)
436    o cleaning-up:
437      - fix CPP instruction syntax in pkg/obcs
438      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
439        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
440      - fix some threads issue in IO parts.
441    o pkg/dic:
442      - add tons of "_d 0" (--> much better testreports !)
443       and then update outputs of tutorial_global_oce_biogeo
444    o pkg/mom_fluxform:
445      add a special version of momentum advection intended to conserve momentum
446      next to a bathymetry step or a coastline edge. (default = off = #undef)
447    o new read/write pickup version:
448      - for now, only implemented for main (mdsio) pickup file.
449      - write out only what is needed to restart; merge pickup_nh , pickup_ph
450        and main pickup together.
451      - read meta file; read only what is needed to restart; stop if a field
452        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
453        if it make sense (even if the restart is not perfect).
454      - if no meta file, assume that pickup to read corresponds exactly to
455        a pickup that would currently be written.
456      - read pickup written in the old format (until checkpoint59i) if it
457        recognizes an old meta file (no field-list).
458      - add a meta file in exp. which starts from a pickup: 2 cases:
459        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
460         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
461        b) a meta file describing the content of the associated pickup file
462         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
463    o pkg/mdsio & pkg/rw:
464      - new routine to read a meta file ; new set of routine to read
465        Multiple-fields file (with meta file).
466    o added open boundary conditions capability for seaice
467        HSNOW, HSALT, UICE, and VICE
468    
469    checkpoint59i
470    o adjoint:
471      * fix multiDimAdvection adjoint
472        (partial recomputation problem by TAF for fVerT(:,:,kDown)
473        and comlev1 size definition (maxpass vs. max. number of tracers)
474      * verification/global_ocean.90x45x15 adjoint now tests
475        NLFS and multiDimAdvection using DST3 (=30)
476      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
477    o pkg/kpp: add "_d 0" to real constant (if missing);
478      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
479      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
480    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
481      for internal parameters related to restart process (formerly from PARAMS.h)
482      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
483    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
484      as argument. (only atm2d & obcs write_pickup have not yet been updated)
485    o pkg/monitor:
486      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
487      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
488      - account for deep Atmosphere factor and density factor (anelastic)
489    o added open boundary conditions capability for seaice HEFF and AREA
490    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
491      thermodynamics
492      - requires a little reorganization, which affects the testreport results
493        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
494        so that now the conservative form is tested
495      - add a few comments
496    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
497    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
498    o add new diagnostics to seaice: advective, diffusive fluxes (only for
499      multidim-advection, for scheme 2 they are not filled) and transports,
500      thermodynamic growth rates
501    o change units of EmPmR (inside the code, + within coupling interface)
502      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
503      Affects results @ truncation level (cg2d match) and update output of
504       experiments: lab_sea(6), global_ocean.90x40x15(10),
505      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
506      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
507      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
508      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
509    
510    checkpoint59h
511    o pkg/exf:
512      - improve vectorization by moving if-statement out of loops in
513        exf_mapfields, exf_radiation
514      - exf_bulkformulae.F: introduce 2D fields and vectorize code
515    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
516    o testreport:
517      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
518        monitor & update offline_exf_seaice exp. output.
519      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
520    o pkg/seaice:
521      - bug fix in the evp solver: boundary conditions were affected be
522        masking of zMax/zMin (changes results)
523      - minor bug fix in boundary conditions in seaice_calc_strainrates
524        (changes results for no_slip)
525      - seaice_lsr.F: make interpolation of eta dependent on boundaries
526      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
527      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
528        stress formulation and no-slip boundary conditions
529    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
530      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
531    o pkg/seaice: a first HSALT time stepping equation has been checked in
532    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
533      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
534      without requiring DO-IF statements
535    o pkg/thsice:
536      use continuous power-law function for partition of energy between lateral
537      melting/freezing and thinning/thickening ; old code using step function
538      still available with #undef THSICE_FRACEN_POWERLAW
539      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
540    o testreport: change AD testing : check against results/output_adm.txt
541      using same scripts as for forward test.
542    
543    checkpoint59g
544    o adjoint testing: in preparation for changing testreport:
545      - output format: cost and grad written on separated lines
546      - ad output results in directory "results" (instead of "results_ad")
547    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
548    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
549    o pkg/ecco: allow user defined cost function contributions
550    o testreport:
551      Allow to choose (per experiment) the list of tested output variables
552       and the main variable (used to issue a pass/FAIL ) ;
553      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
554      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
555      Also modify printing of summary:
556       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
557       b) echo the list of tested variables in the individual summary.txt of
558          each experiment.
559    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
560      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
561      (but still depend on the tile decompostion of the domain).
562    o pkg/seaice: change a discretization detail to make the B-grid code
563      "more symmetric". This change is likely to remove all "ridges/leads" that
564      where quasi-aligned with the grid in B-grid solutions. It may also be
565      the solution to the stress coupling issues with the B-grid.
566    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
567      remove .cvsignore from input dir. (since testreport no longer run here).
568    o pkg/thsice:
569     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
570     - fix reshaping of sea-ice just after advection:
571       melt all the ice only if ice-volume is too small.
572     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
573       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
574     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
575    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
576      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
577    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
578      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
579      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
580      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
581      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
582      -> update output.txt
583    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
584     this affects truncation error: -> update output.txt of exp:
585      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
586      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
587    
588    checkpoint59f
589    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
590    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
591      a bounded range (in forward mode)
592    o pkg/ecco, ctrl, autodiff and mom_common:
593     internal parameter controls, completements of implementations
594    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
595    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
596      (not seem any difference in testing results).
597    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
598       at face corners.
599    o pkg/generic_advdiff:
600     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
601      loop range indices for computing vertical advection tendency
602      and do the calculation in the interior only (no overlap) ;
603      for now, only implemented for SOM advection (to save CPU time).
604     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
605    o exch2 adjoint
606      First set of changes:
607      - add exch2 hand-written adjoint templates
608      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
609        This will require cleanup in pkg/autodiff/*.F
610        (changed routines currently kept separate in verif. code/)
611      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
612        that used to hide exch2 or cubed-sphere specific code
613        (commented via 'cph-exch2')
614    o pkg/seaice
615      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
616    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
617       output of global_ocean.cs32x15.thsice .
618    
619    checkpoint59e
620    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
621      for B-grid vector (not yet tested) and C-grid vector (<- only used
622      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
623    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
624      (#ifdef ALLOW_SALT_PLUME)
625    o gather_2d/scatter_2d: removed halo regions
626    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
627      scheme and the corresponding test case (under front_relax dir). For now,
628      only available with Skew-flux form and not yet tested in realistic set-up.
629      adjoint: store directives updated, but gradient checks deteriorated,
630      so maybe GM/Redi adjoint is now broken.
631    o seaice adjoint
632      * add AREA, HEFF, HSNOW as control variable
633        (should not change lab_sea results)
634      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
635    o pkg/seaice:
636      * added computation of saltFlux in seaice_growth;
637        For time being, sea ice salinity is assumed constant
638        contribution of snow flooding to freshening of sea ice is neglected.
639        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
640        defaults to 0.0 in order to maintain backward compatibility.
641        Typical values for SEAICE_salinity are 4 to 10 g/kg.
642      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
643      * added SEAICE_availHeatFrac, which specifies fraction of surface level
644        heat content used to melt or grow ice
645      * commented out cap of HICE: it helps keep ice thinner
646      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
647      * applied OBCS T/S mask to HEFFM sea ice mask
648    
649    checkpoint59d
650    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
651     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
652     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
653    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
654     and change default value of parameter "GM_Small_Number";
655     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
656       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
657       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
658    o pkg/ecco: cost function when applying pkg/smooth to controls
659    o pkg/ctrl: add forcingPrecond run time parameter
660    o pkg/seaice:
661     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
662     - fix bug in metric terms of u-equation in LSR solver (implicit part),
663       changes verification/lab_sea
664     - rearrange implicit part of u-equation in LSR solver to make it easier to
665       read, understand, and debug. This causes changes at the truncation level.
666     - fix (serious) bug in the boundary conditions (sign error in the implicit
667       part) of the LSR solver. Changes all LSR results.
668     - fixed problem with HSNOW initialization to avoid thick snow when AREA
669       is initilized with small values - does not change lab_sea results.
670     - added HsnowFile initialization capability
671    o pkg/smooth: addition to model/src and pkg/ctrl so allow
672     initialization of pkg/smooth and application to control vector
673    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
674    o dependencies: pkg/profiles requires pkg/cal
675    o pkg/profiles:
676     - added option ALLOW_PROFILES_GENERICGRID
677         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
678         that interpolation information (grid points and coefficients) is provided
679         within the netcdf input files.
680         -> sample matlab scripts can be found in MITgcm_contrib/gael
681         that allow you to prepare netcdf input files.
682     - also modified: cleaner include statements, cleaner error print statements,
683       cleaner stops when error, and more tests of the netcdf input files consistency.
684    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
685    o pkg/seaice:
686     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
687       requires a new routine: seaice_diagnostics_fill.F
688     - make sure that seaice does not move if not forced (pressure replacement
689       method, Hibler and Ip, 1995), changes results
690     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
691     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
692       It is turned off by default (=-1.), because it changes the results.
693     - make it possible to read AREA from a file, too.
694    
695    checkpoint59c
696    o add S/R and diagnostics for oceanic mixed-layer depth
697    o move GMRedi call after all vertical mixing schemes (including KPP)
698    o pkg/thsice:
699     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
700      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
701    o pkg/obcs:
702     - bug fix for balance code
703    o pkg/seaice:
704      - allow values of SEAICE_elasticParm > 1
705      - add new parameter SEAICE_evpTauRelax as an alternative
706        to SEAICE_elasticParm
707      - make lsr boundary conditions free slip (by default), changes result
708      - add code for no slip boundary conditions for lsr
709      - set minimum of zeta to zero (and not 4e8) (changes results)
710      - add a cap on AREA after advecting AREA if seaice_growth is not called
711    o change calculation of Visbeck K:
712      - no longer depend on tapering scheme; instead, compute slope (limited
713        by GM_maxSlope). this is equivalent to what was comuted before with
714        clipping or linear tappering.
715      - fix vertical averaging (wrong by 1/2 level)
716      - leave the old version (but will not be maintained) within
717        #ifdef OLD_VISBECK_CALC / #endif
718      - update output of exp. ideal_2D_oce
719    o change error catch in calc_r_star to improve vectorization
720    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
721      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
722    o adjoint:
723      Re-organized adjoint checkpointing according to Matt Mazloff
724      (but with modifs/completions/cleanups)
725      Storing is now bundled into large arrays to optimized I/O
726      (and second step in cleanup of the_main_loop)
727    
728    checkpoint59b
729    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
730      - export/import (between ocean & coupler) fields needed for ocean DIC.
731    o pkg/seaice:
732      - get rid of three more exchanges seaice_calc_viscosities (required
733        different loop boundaries in seaice_lsr and seaice_ocean_stress)
734      - bug fix in seaice_ocean_stress (update of lab_sea required)
735      - reduce loop boundaries to necessary minimum also in seaice_evp
736      - go back to the old way of computing deltaC/Z as the adjoint likes that
737        better
738    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
739      passive tracer to an Age Tracer) + update output.txt
740    o pkg/exf:
741      - implement A-grid / C-grid selection for wind-stress input files.
742      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
743      for now, in exf_bulk_largeyeager04.F only :
744      - change implementation for case where windspeed + 2. components wind-stress
745        are read-in. AND use rhoConstFresh to convert evap.
746    o pkg/seaice:
747      - use correct EXCH_UV for wind-forcing (on A-grid).
748      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
749        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
750    o pkg/exf:
751      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
752      EXF_INTERPOLATION:
753      - merge global_with_exf/code version of exf_interp_read.F
754        to the main code ;
755      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
756        reading the file ; Important: This options needs to be defined to recover
757        previous code.
758        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
759      - no longer loose real*8 precision along the way when using exf_iprec=64.
760    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
761      - change discretisation of evp-solver in order to avoid another exchange
762        (changes lab_sea) and clean up a little
763      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
764        help the adjoint (this also changes the results slightly)
765      - add a few "_d 0" where they had been missing in seaice_evp.F
766      - cleaning up: remove unused seaice_calc_rhs.F
767    o pkg/exf: some cleaning-up:
768      - change various "constants" into runtime parameters
769      - cleaned-up Large&Yeager04 routine which should eventually
770        replace exf_bulkformulae.F (changed names of S/R and CPP)
771        and merged various ALLOW_ATM_WIND options
772     only used with thsice pkg (in thsice_get_exf.F):
773      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
774        which are used when useStabilityFct_overIce=TRUE (= the default)
775      - change default values of ice & snow emissivity and scale downward LW
776        by ice & snow emissivity.
777    o pkg/thsice:
778     fix few little problems, in thsice_calc_thickn.F:
779      - growth vertically (and not laterally) if iceFrac == iceMaskMax
780      - melt only laterally if hIce < hThinIce (as the comments say)
781      and in thsice_extend.F:
782      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
783      - start to form ice as soon as the minimum ice-volume is reachable.
784     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
785      and cpl_aim+ocn
786    o pkg/kpp
787     - move computation of surface related input fields to KPP into a new
788       subroutine kpp_forcing_surf.F
789     - remove wrong (within bi,bj loops) EXCH calls.
790     - little cleaning (add argument myThid in last position, cvs header ...)
791     - for now, fix conservation problem by exchanging KPPviscAz (may not
792       be the best fix)
793    o pkg/seaice
794     - check for inconsistent evp parameter/cpp-flag combination
795     - remove leftover errIO flat for obsolete name list error handling
796    o OpenAD
797     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
798    
799    checkpoint59a
800    o pkg/seaice: some parameter clarifications and a little bit of clean up
801    o pkg/thsice: rename run-time parameters:
802       himin       -> hIceMin
803       himin0      -> hThinIce
804       hihig       -> hThickIce
805       i0          -> i0swFrac
806       transCoef   -> bMeltCoef
807       frac_energy -> fracMelting
808      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
809       with default values (for now) that do not change the results.
810      remove old version of thsice vars advection in pkg/seaice.
811    o in FFIELDS.h:
812      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
813      - make pLoad & sIceLoad always available (but still only used if
814         ATMOSPHERIC_LOADING is #define).
815    o pkg/kpp: replaced _KPP_RL with _RL
816    o bug fixes for vertical diffusivity computations when both KPP and
817        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
818        are no longer updating the vertical diffusivity array
819        (passed as argument) but are (re-) setting those arrays.
820    o pkg/seaice: fix bug in evp solver, while doing that
821      - change (improve?) discretization of stress computations for both
822        cgrid-lsr and evp solver
823      - add a new routine to compute strain rates
824      - the above changes lab_sea results
825      - add no slip conditions for evp solver (off by default), lsr-version
826        may follow
827      - fix exchange for shear at Z-points (does not change lab_sea)
828      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
829        (to force the user to pick a time step since there is not "safe" way
830        of choosing it)
831      - add principal stress diagnostics
832      - rearrange fields for evp a little to avoid having to call a: too many
833        exchanges and b: exchanges for stress trensor components which we do
834        not have.
835      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
836        of evp, complete rewrite for lsr case (latter is does not yet work
837        in all cases)
838    o pkg/kpp: add code to have mixing in shelf ice caverns
839      - add myThid to all kpp routines (long overdue)
840    
841    checkpoint59
842    o pkg/exf:
843      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
844        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
845      - move exf header files from lower_case.h to UPPER_CASE.h ;
846        add missing cvs Header & Name
847      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
848      - add namelist param. selectStressGridPosition, exf_monFreq
849      - retire many _CLIM routines, and remove data.exf_clim
850        + params moved to data.exf
851        + climsst, climsss now handled by exf_set_gen, i.e.
852          climss?period=0 refers to constant field,
853          climss?period=-12 to monthly forcing
854      - split up namelists in data.exf
855    o pkg/seaice:
856      - remove seaice_exch and seaice_exch_uv
857      - remove superfluous exchange of theta
858      - add myThid to seaice_budget_ocean/ice
859      - add new interface for atmospheric wind forcing (C-grid only)
860        + new routine
861        + two new field (taux, tauy for stress over ice)
862        + removed one global field (DAIRN) for C-grid case only
863    o pkg/thsise
864      - 2nd set of modifs for thsice adjoint in conjunction with exf
865    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
866    
867    checkpoint58y_post
868    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
869      vertical diffusivity, similar to that in MOM4; turned on using
870      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
871      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
872    o Added capability for 3D specification of background vertical diffusion
873      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
874      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
875      "data" file that contains the 3D vertical diffusivity coefficients.
876    o ice dynamics (pkg/seaice) with thsice thermodynamics:
877      - add code within pkg thsice to advect & diffuse sea-ice fields
878      similar to (and will replace) what has been added in  seaice_advdiff.F,
879      but: - conserving Mass, Heat & Salt.
880           - better when using non-linear advection scheme (not yet fully tested)
881           - can also be used in atmospheric set-up (for now, only the diffusion).
882    
883    checkpoint58x_post
884    o IO option for global-file compact format:
885      - add options when generating topology (utils/exch2/matlab-topology-generator)
886      - add I/O capability (pkg/mdsio).
887      - adapt utils/matlab/rdmds.m to read this format.
888      for now long-line format not yet supported by pkg/mdsio (& exch2).
889    o shelfice: add a few diagnostics
890    
891    checkpoint58w_post
892    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
893      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
894      (and replace horiVertRatio in NH code).
895      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
896                         and tutorial_plume_on_slope (sensitive to truncation)
897    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
898      directly to drive seaice model (C-grid only)
899    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
900     - reintroduce computation of wind from stress,
901     - compute tau (in exf_bulkformulae.F) from windstress averaged to
902       mass points to avoid tau = 0
903     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
904    o rdmnc.m: make it work with "global" files created with gluemnc
905    o rdmnc.m : some improvements in dealing with singleton dimension
906      (tested on all testreport mnc output files).
907    o genmake2: disable pkg/profiles if netcdf test fails.
908    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
909    o move call to cal_readparms up to make calendar parameters/variable available
910      to all packages
911    
912    checkpoint58v_post
913    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
914      useDynP_inEos_Zc tested.
915    o pkg/exf: changes to properly interpolate/mask/scale initial fields
916    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
917      and portions thereof.  See read_cs.txt for description and examples.
918    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
919      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
920      following the great-circle arc between those 2 points.
921    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
922      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
923    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
924     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
925     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
926     - still needs work (not working with some options ; efficiency to improve)
927       and serious testing.
928     - use this scheme for temperature & salinity in 2 advection test exp.:
929       advect_xy & advect_xz, respectively.
930    
931    checkpoint58u_post
932    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
933    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
934    o testreport: add option "-skipdir" to skip some test.
935    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
936      momentum calculation.
937    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
938    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
939      remove checkpoint.F and the_correction_step.F (no longer used);
940      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
941    o add option (linFSConserveTr) to correct for tracer source/sink due to
942      Linear Free surface
943    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
944    o pkg/thsice: fix reading mnc-pickups
945    
946    checkpoint58t_post
947    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
948    o pkg/mdsio:
949     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
950       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
951       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
952     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
953     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
954       either MDS_READ_FIELD or MDS_WRITE_FIELD )
955     - new S/R (to replace MDSWRITEMETA), which allows to write more
956       informations (variable names, time ...) to meta files.
957     - modify rdmds.m to give back the meta file content.
958    o pkg/diagnostics: change vertical interpolation to be safer, and more
959       flexible (define p-levels to interpolate to in data.diagnostics);
960      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
961       diagnostic pointer.
962    o pkg/seaice: more cleaning up of seaice_growth, added many comments
963    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
964    o fix multi-category seaice:
965     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
966       SEAICE_MULTICATEGORY
967     - fix short wave heat flux
968    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
969       and allow to use EVP solver. Change forward lab_sea: test both EVP
970       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
971    o Initial check-in of lab_sea adjoint
972      (very similar to natl_box_adjoint/code_seaice)
973      * used C-grid and EVP solver
974      * used KPP, GM/Redi
975      * uses inAdExact=.TRUE.
976      * gradient checks fail for both ADM and TLM
977        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
978        f.d. gradients actually seem more problematic than ADM, TLM gradients;
979        issue is related to forward mismatch between g77 an ifort
980    o pkg/seaice: overhaul of thermodynamics
981     - growth.F and groatb.F are replaced by new routine seaice_growth.F
982     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
983     - move a few global fields out of SEAICE.h into seaice_growth.F and
984       make them 2D (FICE/QNETO/ ...)
985     - remove FO (it is the same as QNETO)
986     - introduce a few local fields to avoid modifying external fields such
987       as atemp, etc.
988    
989    checkpoint58s_post
990    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
991      changed exf_set_gen.F so that
992        genperiod=0 means input file is one time-constant field and
993        genperiod=-12 means input file contains 12 monthly means
994    o CG2D: use pre-computed solver main-diagonal (stored in common block);
995      this affects truncation error ; generate new output file for exp. which
996      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
997        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
998        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
999        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1000        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1001        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1002    o start implementation of deep-atmosphere and anelastic formulation
1003    o verification: remove 2nd copy of input files and use script "prepare_run"
1004      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1005    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1006    o profiles: fix for multithreaded case
1007    
1008    o diagnostics: rename few diags:
1009      s/'PRESSURE'/'RCENTER '/g
1010      s/'TICE    '/'oceFreez'/g
1011      s/'TAUX    '/'oceTAUX '/g
1012      s/'TAUY    '/'oceTAUY '/g
1013      s/'SWFLUX  '/'oceQsw  '/g
1014      s/DIFx/DFxE/g
1015      s/DIFy/DFyE/g
1016      and add few ocean-forcing diagnostics:
1017      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1018    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1019      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1020      as actual snow thickness.  It now refers everywhere to effective snow
1021      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1022    
1023    checkpoint58r_post
1024    o modifications to pkg/seaice/growth.F, which change results of
1025      lab_sea experiment: fixes pertain to melting snow over open water, to
1026      masking EVAP under sea ice, and to using the correct AREA variable for
1027      computations of EVAP, PRECIP, HSNOW, and GHEFF
1028    o add ability to read bathy, salt, and theta using MNC (off by def)
1029    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1030      both are turned off by default and do no change any results
1031    o seaice advection with pkg/thsice: a step toward the use of non-linear
1032      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1033    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1034      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1035      in natl_box (affects results @ truncation level: update output.txt)
1036    o multi-threading and IO:
1037      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1038      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1039        (needed to work with SingleCpuIO): tested in all verif. exp.
1040    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1041      affects the results (but none of the verification test uses this scheme).
1042    o Adding some pkg/diagnostics capability to pkg/seaice
1043      (will certainly be subject to changes)
1044    o ctrl: adding new control variables:
1045      lwflux, lwdown, evap, snowprecip, apressure, runoff
1046    
1047    checkpoint58q_post
1048    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1049      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1050      high_res_cube configuration by 4% on Columbia.
1051    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1052      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1053      dynamical allocation (seems to work in multi-threaded).
1054    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1055      single CPU io) so that TAF does not have to see EESUPPORT.h
1056    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1057    
1058    checkpoint58p_post
1059    o obcs: stop if obcs is used with useCDscheme = .true.
1060    o shelfice:
1061     - fix a sign error so that no slip at shelfice interface works
1062     - remove stop for combination non-hydrostatic code and shelfice. That does
1063       not mean, that the results are correct, but at least they are numerically
1064       stable
1065    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1066    o added adjoint exch routined for all exch*3d* routines
1067      and updated flow directives
1068    
1069    checkpoint58o_post
1070    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1071      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1072    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1073      and clean-up reading/writing of pickup files.
1074    o fix local version of read/write pickup (NH part) in rotating_tank/code
1075    o simplify EXCH interface:
1076     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1077     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1078    o added the regrid package
1079    o shelfice:
1080     - add a simple boundary layer scheme to reduce noise
1081     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1082    
1083    checkpoint58n_post
1084    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1085       local variable (not in common block).
1086    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1087      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1088      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1089        to work with SingleCpuIO.
1090    o add "_d 0" to real constant of pkg/cfc subroutines ;
1091       update exp. cfc_exemple & tutorial_cfc_offline output files.
1092    o multi-threading and IO:
1093      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1094        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1095      - barrier before and after reading.
1096      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1097      - avoid using MDS_WRITELOCAL for LAND pkg output.
1098      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1099        common-block variables ; Allows multi-threading with master-thread IO.
1100    o change default MAX_NO_THREADS from 32 to 4 ;
1101      and stop cleanly when MAX_NO_THREADS is too small.
1102    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1103    
1104    checkpoint58m_post
1105    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1106       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1107    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1108       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1109       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1110    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1111        add MITgcm_tutorials (= code + all the tutorials)
1112    o ecco, option to compute cost for total ssh (mean+anom)
1113    o consistent with addition of ptracer and ssh in pkg/profiles
1114    o profiles: adding ptracer and ssh
1115    o testreport: change multi-test output-file name
1116      (from output.txt.{name} to output.{name}.txt)
1117    o profiles: now ok for mutli-tiles case
1118    o seaice: add 4 parameters for different advection schemes for area,
1119      (effective) seaice thickness, enthalphy, and snow height. Their default
1120      is the standard parameter SEAICEadvScheme
1121    o calc_gw:
1122     - add cosFacU in zonal viscous flux (harmonic.visc.).
1123     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1124       of tutorial_plume_on_slope.
1125    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1126    o calc_gw: true flux-form, account for horizontal grid spacing.
1127      update rotating_tank results, but not plume_on_slope (affected at
1128      truncation level, 11 digits).
1129    
1130    checkpoint58l_post
1131    o calc_gw:
1132     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1133     - remove side-drag for now (need to fix it); update plume_on_slope results.
1134     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1135    o commit code to make SST/SSS weights spatially variable
1136      (based on either variable in-situ or variable initial T/S weights)
1137    o pkg/ecco:
1138      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1139        now based on horizontally varying weights wthetaLev, wsaltLev
1140      * cost_averagesflags now returns year indices in addition to day, month
1141      * sflux balance is performed on annual basis
1142        (sflxumm, sfluxmm2, bal_sfluxmm)
1143      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1144        including separate counting and multipliers
1145    o pkg/rbcs
1146      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1147    
1148    checkpoint58k_post
1149    o testreport:
1150     - always build in dir. "build" (if not there, mkdir build instead of building
1151       & running in input)
1152     - run in dir run (if it exists), in build otherwise.
1153     - call prepare_run (if input/prepare_run exists)
1154     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1155    o pkg/exf modifications to interpolation and rotation routines for more
1156       reasonable treatment of North Pole singularity: for tracers North Pole
1157       value is set to northernmost zonal-mean value, for zonal velocity it is
1158       set to zero, and for meridional velocity it is set to northernmost value.
1159    o pkg/exf/exf_check_range.F
1160     - add tile index to diagnostics and move stop statement to the very
1161       end of the routine.
1162    o pkg/diagnostics: (diagnostics_main_init.F)
1163      define title of isomorphic variables according to the current config.
1164    o pkg/thsice with pkg/seaice dynamics:
1165    - fix domain of computation (interior only, required for exf) and do exchanges
1166    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1167    o towards a standard way of dealing with multi-threading in MONITOR
1168      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1169    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1170       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1171    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1172    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1173    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1174       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1175  o tracer advection:  o tracer advection:
1176   - clean-up and simplify calc_common_factors.F   - clean-up and simplify calc_common_factors.F
1177   - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer   - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer

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