Date |
Type |
Description |
07
Mar 2011 |
New
Release v6.00 |
NonLinLoc
software v6.00 released (Updated release of the NonLinLoc software
and documentation.)
New Features:
- NLLoc:
LOCHYPOUT->FILENAME_DEC_SEC format added.
-
NLLoc
: Hypocenter->gap_secondary added
-
NLLoc:
QML_OriginQuality, QML_OriginUncertainty in NLL Hypocenter-Phase
format output.
-
NLLoc:
Added compiler option GRID_FLOAT_TYPE_DOUBLE to set the floating
point size (float or double) for NLL grids - modify with care!
Normal NonLinLoc usage currently require float type; take-off
angle and byte-swapping support requires float type.
-
NLLoc
: // SED-ETH fields added for compatibility with legacy SED
location quality indicators. SED_Origin added to NLL-Hypocenter
output format if LOCHYPOUT->CALC_SED_ORIGIN flag specified.
-
Grid2Time:
Slowness model grids are now saved to output time grid directory.
Updates/Changes:
- NLLoc:
Replaced old matrix libraries with open source matrix libraries.
Used for SVD (singular-value decomposition for error ellipsoid
calculation) and Gauss-Jordan elimination (matrix inversion).
Bug
Fixes:
- NLLoc:
WriteHypoInverseArchive for Y2000 : Uninitialized site, network,
and component codes were written as "?" instead of "
" (blank).
-
NLLoc:
Reading HYPO71 and HYPOINVERSE type phase files : Failed to
correctly distinguish integer and floating point phase seconds
fields correctly if seconds < 1.00.
-
NLLoc:
Inconsistent treatment of zero weight, ignored and large error
(>9998sec) phases in location and output. Now: 1) Phases with
phase name starting with "*", PriorWt = 0, ErrMag >
9998.0 or excluded (LOCEXCLUDE) are not used for location, their
Weight will be 0. 2) Phases with Weight = 0 are not used to
compute the QUALITY measures: Nphs, Gap or Dist.
-
Time_3d.c:
Corrected 2 statements with no effect: Time_3d.c:1701,
Time_3d.c:1713.
-
NLLoc:
ERH and ERZ values in hypo71 output were not correctly
calculated: were squared distance, corrected to be distance
-
NLLoc:
Global mode ellipsoid did not correct for reduction of length of
degree of longitude away from equator (see GridLib.c –
CalcCovarianceSamplesGlobal())
-
NLLoc:
Free StaStatNode's in station statistics tables when all
locations completed - prevents memory leak problems when NLLoc
run as a function call.
-
NLLoc:
NLLocLib.c->ReadNLLoc_Input() fixed segmentation fault when
NLLoc run as a function call and INCLUDE statements present in
control lines.
-
NLLoc:
Oct-tree search was not initialized to bottom of LOCSEARCH grid,
bottom LOCSEARCH grid layer was lost.
-
NLLoc:
Station distribution weights may have been incorrectly calculated
when multiple events located.
-
NLLoc:
fixed various problems with not freeing memory pointers in
station statistics table
-
NLLoc:
addToStationList returned zero stations when station list reached
maximum size.
-
NLLoc:
corrected irregular node spacing for OctTree initialization in
GLOBAL mode.
-
NLLoc:
matrix cleanup was done in incorrectly inside the Locate loop,
caused LOCSEARCH GRID to fail with multiple grids.
-
NLLoc:
covariance calculation with LOCSEARCH GRID could fail due to
precision problem if x, y, or z coordinated of location were
large.
|
02
Sep 2008 |
New
Release v5.00 |
NonLinLoc
software v5.00 released (Updated release of the NonLinLoc sofware
and documentation.)
New Features:
- NLLoc:
Control statement
LOCHYPOUT :
Added SAVE_HYPOINVERSE_Y2000_ARC Hypoinverse Y2000 archive
format. Default changed to "LOCHYPOUT SAVE_NLLOC_ALL
SAVE_HYPOINVERSE_Y2000_ARC" -
Added:
NLLoc: Control statement
LOCHYPOUT :
Added new NLL Format NLL_FORMAT_VER_2: with new fields: first
part (observations): a-priori weight; second part (calculated
values) applied time delay, used travel-time uncertainty.
WARNING:
this new output format is currently under development and subject
to modification.
- Added:
NLLoc: apriori weight in location: if 0 ignore, if 1 use arrival.
-
NLLoc:
- Added
LOCMETH
EDT_OT_WT_ML :
EDT origin-time weighting is applied using a grid-search,
maximum-likelihood estimate of the origin-time. Less efficient
than EDT_OT_WT
which uses simple
statistical estimate of the origin time. WARNING:
this new feature has not been thoroughly tested.
- NLL:
-
TRANS
SDC :
- SDC transform mode added. (Short Distance Conversion
projection) -
NLLoc:
Control statement
LOCGAU2 :
Added LOCGAU2 travel-time dependent error. Specifies parameters
for travel-time dependent modelisation-error. Sets the
travel-time error in proportion to the travel-time, thus giving
effectively a station-distance weighting, which was not included
in the standard Tarantola and Valette formulation used by LOCGAU.
This is important with velocity model errors, because nearby
stations would usually have less absolute error than very far
stations, and in general it is probably more correct that
travel-time error is a percentage of the travel-time. Preliminary
results using LOCGAU2 indicate that this way of setting
travel-time errors gives visible improvement in hypocenter
clustering. (can currently only be used with the EDT location
methods) -
NLLoc:
- Added: NLLoc: - Added
LOCTOPO_SURFACE :
uses a topographic surface file in GMT ascii GRD format to mask
prior search volume to the half-space below the topography. -
NLL
- Added: For developers: NLLoc can be called/run from other
programs through new function NLLoc() (for more details see
NLLoc1.c, phaseloclist.h, and NLL distribution doc). -
NLL
- Generic control statement CONTROL :
Added: message_flag = -1 -> completely silent -
NLL :
- TRANS
NONE :
- NONE transform mode added. (no projection, XYZ<->XYZ)
Updates/Changes:
- NNLoc:
- Phase reading times can now cross a year boundary (requires
that first reading is earlier year, i.e. readings are sorted in
time order)
-
NLLoc:
-
LOCMETH
EDT_OT_WT :
hypo.rms is set to sqrt(variance of ottime maximum-likelihood) -
rms is thus weighted in correspondance to the contribution of
each phase to the EDT maximum likelihood location; this is an
a-posteriori weighting which avoid bias due to large outlier
residuals. -
NLLoc:
-
LOCMETH
EDT* :
final origin time, residuals, etc. always calculated with
ET_OT_WT_ML - maximum likelihood origin time. -
NLLoc:
- IMPORTANT
Change: With
LOCMETH
EDT*
output phase weight is now an a-posteriori weight = a-priori
weight (function of phase pick error and LOCGAU or LOCGAU2 travel
time error) * EDT probability (the contribution of the phase to
the EDT sum at the maximum likelihood hypocenter). Use LOCHYPOUT :
NLL_FORMAT_VER_2 to include old (a-priori weight) phase list.
Bug
Fixes:
- NNLoc:
- Fixed bug: Output file names now have integer count index added
only if base name identical to previous output file name
-
NLLoc:
-
LOCSEARCH
GRID
: travel times did not include elevation correction LOCELEVCORR -
Time2EQ:
- Fixed bug: noise added correctly for S when VpVs used
|
31
May 2006 |
New
Release v4.10 |
NonLinLoc
software v4.10 released (Updated release of the NonLinLoc sofware
and documentation.)
New Features:
- NLLoc:
- Added
LOCMETH
EDT_OT_WT :
Equal Differential Time likelihood function (see EDT
description page) with Origin Time weighting. Weights
EDT-sum probabilities by the variance of OT estimates over all
pairs of readings. This reduces the probability (PDF
values) at points with inconsistent OT estimates, and leads to
more compact location PDF's. WARNING:
this new feature has not been thoroughly tested.
- NLLoc:
-
LOCSEARCH
OCT :
useStationsDensity
parameter added. if 1 weights oct-tree cell probability values
used for subdivide decision in proportion to number of stations
in oct-tree cell; gives higher search priority to cells
containing stations, stablises convergence to local events when
global search used with dense cluster of local stations.
WARNING:
this new feaure has not been thoroughly tested.
- NLLoc:
-
LOCSEARCH
OCT :
stopOnMinNodeSize
parameter added. if 1,
stop search when first min_node_size reached, if 0 stop
subdividing a given cell when min_node_size reached -
NLLoc:
Control statement
LOCPHSTAT :
Added parameters to allow filtering on ellipsoid max lenght of
semi-axis and on hypo depth for selection of residuals to be used
in calculation of average residuals
- Ell_Len3_Max
: max ellipsoid major semi-axis length to include in ave res
- Hypo_Depth_Min
: min hypo depth to include in ave res
- Hypo_Depth_Max
: max hypo depth to include in ave res cutoffs
NLLoc:
Control statement LOCHYPOUT :
Added SAVE_NLLOC_OCTREE to LOCHYPOUT parameters to allow saving
of oct-tree structure to disk when LOCSEARCH OCT used.
Updates/Changes:
NNLoc:
- In function NLLocLib.c:CalcSolutionQuality_EDT() : sum of EDT
probs now not-normalized by sum of station weights - This
increases the probability (PDF values) at points with more
readings (larger number of valid travel-times). Before,
points where there were few very few travel-times were available
(e.g. in shadow zone for many stations) could give anomalously
large PDF values relative to points with a full set of valid
travel times.
Bug
Fixes:
- NNLoc:
- Fixed bug: In function NLLocLib.c:ConstWeightMatrix():
added ncol == nrow case so error is non-zero (previously, if
CorrLen == 0, travel time error was zero instead of sigmaT2)
- NNLoc:
- Fixed bug In function NLLocLib.c:StdDateTime() : arrivals with
no predicted travel-time (travel-time = 0) were used to calculate
rms - gave very large rms
NNLoc:
- Fixed bug: addition to and counting of stations in station list
was incorrect, may have affected *.stations files and LOCSTAWT
|
02
May 2005 |
New
Release v4.00 |
NonLinLoc
software v4.00 released (Updated release of the NonLinLoc sofware
and documentation.)
New Features:
- NLLoc:
- Added Obs Formats:
ISC_IMS1.0
(http://www.isc.ac.uk/Bulletin/Info/format.htm),
CSEM_GSE2.0
(http://www.emsc-csem.org/)
- NLLoc:
- Added
LOCELEVCORR:
Flag
VelP
VelS
: Simple, vertical ray elevation correction for GLOBAL mode with
TauP travel time files. WARNING:
this new feaure has not been thoroughly tested. -
NLLoc:
- Added
LOCSTAWT:
flag
cutoffDist :
Calculates a weight for each station that is a function of the
average distance between all stations used for location.
WARNING:
this new feaure has not been thoroughly tested.
- NLLoc:
- Added
minDistStaGrid
to LOCMETH
: Phases from stations closer than this distance will not be used
for locaiton
NLLoc:
- Added output of total station corrections to new output file
*.stat_totcorr
(simplifies iterative development of station corrections), see
Phase Statistics file.
Updates/Changes:
- NLLoc:
- Important: NLL now first tries to open a travel-time grid
file with a name corresponding to raw phase name, if this fails,
it will then try using phase name mapping from LOCPHASEID
(previously, NLL always used phase name mappings from LOCPHASEID,
if present)
- NLLoc:
- Added output of station correction (delay) used for location to
each line in PHASE list in NLLoc
Hypocenter-Phase file
- NLLoc:
- Checking for (and ignoring of) duplicate phases is now limited
to checking for duplication of station name (after aliasing) and
duplication of original phase name
- NLLoc:
When DEFAULT time grids ("DEFAULT" for the station
code) are used and multiple stations use same grid, only one copy
of each grid file is kept in memory.
- NLLoc:
- Added boundary indexing in Metropolis/Oct-Tree message "max
prob location on grid boundary" (10,11,20,21,30,31 ->
x,y,z orig/end boundary)
- NLLoc:
- Check for "max prob location on grid boundary" no
longer "rejects" location if maxiumum likelihood
hypocenter is on top boundary of search region as defined by
LOCGRID .
Source
Codes: - NLLoc1.c has been split into NLLoc1.c and NLLocLib.c
Bug
Fixes:
- NNLoc:
- Fixed bug:
ERH
and ERZ
values in HYPO71
Hypocenter/Station file output were reversed.
- NLLoc:
- Fixed bug: gap in QUALITY Line in NLLoc
Hypocenter-Phase file was calculated using 0 weight readings,
now uses only readings with weight > 0.001
- Grid2GMT:
- Fixed bug in Focal Mech plotting, was rotated 90 to far in
clockwise direction
-
Source
Codes: - Fixed bug: some files were "closed" with
close() instead of fclose()
- Source
Codes: - Fixed code to remove most compiler warnings when -Wall
flag used.
|
15
Apr 2004 |
New
Release v3.03 |
NonLinLoc
software v3.03 released (Updated release of the NonLinLoc sofware
and documentation.)
New Features:
- NLLoc:
- Added
LOCMETH
EDT :
Equal Differential Time likelihood function (see EDT
description page).
- NLLoc:
- Added new Phase File Formats, including NEIC
Format (
NEIC )
and CSEM-EMSC Alert Format
CSEM_ALERT
(for a list of more Phase File Formats, see Formats
-> Phase Files).
- NLLoc:
- Added support for arrivals without absolute timing (indicated
by '
* '
as first character of NonLinLoc
Format Instrument
(can currently only be used with EDT likelihood function) -
NLLoc:
-
TRANS
GLOBAL :
spherical regional/teleseismic transform mode added. In
TRANS GLOBAL mode, the NLLoc program uses a "spherical
earth", longitude,latitude,depth coordinate system
(positive X = East, positive Y = North, positive Z = down).
Longitude and latitude units are degrees, depth is in kilometers,
most input/output distance quantities are expressed in geographic
(longitude,latitude,depth) coordinates, most, but not all,
horizontal distances are in degrees.
- NLLoc:
- Support for station/site independent travel time grids
identified by "DEFAULT" for the station code in the
travel time grid file name.
- NLLoc:
-
LOCSRCE
(equivalent of GTSRCE )
added to allow specification of a station location when using
station "DEFAULT" travel time grids during TRANS
GLOBAL
mode location.
NLLoc:
- LOCFILES :
added optional iSwapBytes
flag to support reading of travel time grids from different
computer architecture platforms during TRANS
GLOBAL
mode location.
Updates/Changes:
- NLLoc:
-
LOCSEARCH
OCT :
minNodeSize
parameter activated (always in km).
- NLLoc:
- OctTree smallestNodeSide output in NLLoc
Hypocenter-Phase file is now x/y/z.
- NLLoc:
- Rejected arrivals are written to output NLLoc
Hypocenter-Phase file.
NLLoc:
- A copy of the control file is written in the output directory.
Bug
Fixes:
- NNLoc:
- Fixed bug: non-convergence in identifying maximum likelihood
point when PDF is everywhere near 0.
- NLL0c:
- Fixed bug in station azimuth in NLLoc
Hypocenter-Phase file, was not corrected for coord system
rotation angle.
|
14
Oct 2003 |
New
Release v2.37 |
NonLinLoc
software v2.37 released (Updated release of the NonLinLoc sofware
and documentation.)
New Features:
Time2EQ:
Added station active probability.
Updates/Changes:
- Grid2GMT:
Extended plot height to 27.9 cm
- Grid2GMT:
Added magnitude to hypocenter info line in plot title
- NLLoc:
ML Hutton Boore:
ML_HB :
added optional Ro
and Mo
parameters: #
ML_HB amp_fact n K [Ro [Mo]]
NLLoc:
HYPO71,
HYPO71_OV, HYPOELLIPSE phase
input format: Added reading o fcoda duration value
Bug
Fixes:
- NLLoc:
Fixed bug: in OctTree scatter sample: sample was truncated at
requested number of points.
- Grid2GMT:
Fixed bug: in
MAPTRANS :
transformation was not initialized nor applied correctly
- Grid2GMT:
Fixed bug: with magnitude assignments when only 1 mag type
present
- Grid2GMT
- Fixed bug: in hypoinverse format (magnitude was ignored),
removed error ellipse values to prevent column shifting
- Grid2GMT
- Fixed bug: in
ETH_LOC
format of arrival->sec
|
21
Jun 2001 |
New
Release v2.32 |
NonLinLoc
software v2.32 released (Updated release of the NonLinLoc sofware
and documentation.)
Bug Fixes:
- NLLoc:
Fixed bug:
last.hypo_inv
file not written to correct output directory.
|
18
May 2001 |
New
Release v2.30 |
NonLinLoc
software v2.30 released (Updated release of the NonLinLoc sofware
and documentation.)
New Features:
- NLLoc:
Added copying of output files from last location to files
last.hdr ,
last.hyp ,
etc.
- NLLoc:
Added new magnitude type MD_FMAG (duration magnitude) to control
statement
LOCMAG .
- NLLoc:
Added SIMULPS format
for phase pick files.
- NLLoc:
Added N Calif Seismic Netowrk
(NCSN)format.
- NLLoc:
Added grid memory management; NLLoc program keeps and re-uses
travel-time grids in memory while there is space.
- NLLoc:
Added Oct-tree importance sampling
search method.
- NLLoc:
Added copying of last event location files to last.hyp and
last.hdr.
- Grid2GMT:
Added plotting of mechanisms and residuals.
- NLLoc:
Added new
STAT_GEOG
line to Hypocenter-Phase
file output.
- Generic
control statement
MAPLINE :
Added support for GMT grd file plotting in Grid2GMT.
- Generic:
Added new, optional control statement
MAPTRANS :
Specifies geographic transformation for plotting in Grid2GMT.
Generic:
Added new, optional control statement MAPGRID :
Specifies grid region for plotting in Grid2GMT.
Updates/Changes:
- NLLoc:
Added new station parameter sta_corr_fd_fmag (duration magnitude
station correction) to control statement
LOCCMP .
- Seismicity
Viewer: Updated version, runs as stand-alone and applet.
- NonLinLoc:
Binary executable files provided for Linux, no longer for
Solaris.
- NLLoc:
Added max difference of S-P to Hypocenter-Phase file VpVs line
output.
- NLLoc:
Added quick fix for HYPO71 phase data Y2K problem: if year <
20, year = year + 100.
NLLoc:
Added quick fix for HYPO71 phase data Y2K problem: if year <
20, year = year + 100.
Bug
Fixes:
- NLLoc:
Fixed bug: hypo-inverse format: W long and S lat were not
correctly written to summary file.
- NLLoc:
Fixed bug: Events with maximum-likelihood hypocenters on y-max
boundary of location search grid were not identified as being on
the grid boundary, and conseuquently were not "rejected".
- NLLoc:
Fixed bug in HuttonBoore mag calculation: epicentral and not
hypocentral distance was used for r in K(r-100)
term; changed to hypocentral distance.
|
01
Sep 2000 |
New
Release v2.10 |
NonLinLoc
software v2.10 released (Updated release of the NonLinLoc sofware
and documentation.)
Bug Fixes:
- Grid2GMT:
Fixed bug that map files were not closed when multiple events
were processed.
- NLLoc:
Fixed bug that not all phases were written to hypo-inverse format
output file. (Note:
Still not all phases are written to HYPO71/HYPOELLIPSE format.)
|
17
Feb 2000 |
New
Version v2.00 |
NonLinLoc
software v2.00 released (New version of the NonLinLoc sofware and
documentation. Significant changes are indicated in the
documentation by (ver
2.0))
New Features:
- NLLoc:
Control statement
LOCMETH :
Added minNumberSphases ,
minimum number of S phases that must be accepted before event
will be located (Important:
You must add a minNumberSphases
value to the LOCMETH
statement in any existing NLLoc control files to update them for
NLLoc v2.0)
- NLLoc:
Added new control statement
LOCEXCLUDE
to explicitly exclude selected station/phase observations from
being used for location
- NLLoc:
output Hypocenter-Phase
file: Added Vp/Vs estimation (in
VPVSRATIO
line) following methodology of Lahr
(1989)
- Grid2GMT:
Added optional override of default GMT-cpt colors. If a GMT-cpt
file named
Grid2GMT.cpt
is present in the directory in which the GMT script is run, it
will be used for the plot and scalebar contours levels and colors
for all plot types that use contouring.
- Grid2GMT:
Added optional additional GMT script to be run for each view
type. If a GMT script file named
Grid2GMT.?.gmt ,
where ?
= H, X, Y or V
is present in the directory in which the main GMT script is run,
it will be run for the corresponding view (H,
X, Y or V )after
all standard GMT script is run for that view.
Time2EQ:
Added new control statement EQVPVS
to specify constant Vp/Vs ratio to allow use of P phase
travel-time grids to calculate S phase travel times.
Updates/Changes:
- Grid2GMT:
Added support for oblique vertical cross sections in
V
mode and for specification of cross section end points in
latitude and logitude (new VL
mode).
Time2EQ:
Control statement EQSTA :
Added NONE
error type
Bug
Fixes:
- NLLoc:
Residual calculation in Hypocenter-Phase
file: Fixed MAJOR BUG in calculating phase residuals for some
travel-time file types if Vp/Vs ratio was used (residual written
to output did not correspond to maximum likelihood location)
- NLLoc:
Phase observation time in Hypocenter-Phase
file: Fixed MAJOR BUG that observed times were written to
output with delays subtracted for phases with
LOCDELAY
corrrections
- NLLoc:
Control statement
LOCPHASEID :
Fixed bug in identifying "S" phases to use Vp/Vs (S
phases not identical to "S" were ignored, regardless of
LOCPHASEID
settings)
- NLLoc:
Fixed bug that not all observation file types had phases checked
for valid P or S phase code before accepting observation for
location
- Vel2Grid:
Control statement
POLYGON2 :
Fixed bug that velocity gradients in POLYGON2
were reversed (psotive gradients were interpreted as decreasing
downwards)
- Grid2GMT:
Fixed bug that grid files were not closed when multiple events
were processed.
|
07
Jul 1999 |
New
Release v1.40 |
NonLinLoc
software v1.40 released (Updated release of the NonLinLoc sofware
and documentation.)
Updates/Changes:
- Grid2Time:
Substitution of more recent version of the eikonal
finite-difference code Time_3d.c (7 May 1993) for previous
version Time_3d_fs.c (2 January 1992). The newer code seems to
run faster and be more robust than the previous while producing
identical results.
- Grid2GMT:
Added parameters and commands in output GMT script for optional
plotting in Lat/Long coordinates of unrotated, horizontal only
views.
|
25
Jun 1999 |
New
Release v1.30 |
NonLinLoc
software v1.30 released (Updated release of the NonLinLoc sofware
and documentation.)
Updates/Changes:
- Generic
control statement
TRANS :
Implemented rotAngle in LAMBERT transformation.
|
08
Apr 1999 |
New
Release v1.21 |
NonLinLoc
software v1.21 released (Fourth "Beta" release of the
NonLinLoc sofware and updated documentation.)
Updates/Changes:
- NLLoc:
LOCMETH Added
parameter to limit maximum number of 3D travel time grids read
into memory for Metropolis-Gibbs search. This helps to avoid time
consuming memory swapping.
|
10
Mar 1999 |
New
Release v1.2 |
NonLinLoc
software v1.2 released (Third "Beta" release of the
NonLinLoc sofware and updated documentation.)
New
Features:
NLLoc:
LOCMETH Added option
for constant Vp/Vs ratio to allow use of P phase travel-time
grids to calculate S phase travel times.
Updates/Changes:
Generic
control statement CONTROL :
Added random number seed.
Bug
Fixes:
- NLLoc:
Fixed bug that automatic x grid positioning could not be switched
off (see Control statement
LOCGRID ).
|
25
Jan 1999 |
New
Release v1.1 |
NonLinLoc
software v1.1 released (Second "Beta" release of the
NonLinLoc sofware and updated documentation.)
New
Features:
- NLLoc:
Control statement
LOCPHSTAT :
Added RMS_Max, NRdgs_Min and Gap_Max cutoffs for selection of
residuals to be used in calculation of average residuals.
- Grid2Time:
Control statement
GTSRCE :
Added LATLONDS (degrees + minutes + decimal seconds
latitude/longitude) format for source location.
- Time2EQ:
Added control statement
EQMECH
to allow specification of a double couple or explosion mechanism
for synthetic first motion calculation.
- Time2EQ:
Added control statement
EQSRCE
to allow specification of multiple sources.
- Time2EQ:
Control statement
EQSTA :
Added FIX option to allow a fixed noise or static shift to travel
time.
- Time2EQ:
Control statement
EQSTA :
Added parameters errorReportType and errorReport to specify how
phase error is written to phase file.
- Time2EQ:
Added control statement
EQMODE
to select calculation of times from single source to multiple
stations or from multiple sources to single station.
- Time2EQ:
Added control statement
EQQUAL2ERR
to allow mapping of errorReport to HYPO71 format quality levels.
LocSum:
Added additional command
arguments Len3Max, ProbMin, RMSMax, NRdgsMin and GapMax to
filter events that are summed.
Updates/Changes:
- Generic
control statement
TRANS :
Implemented rotAngle in SIMPLE transformation.
- NLLoc:
Grid-Search and Control
statement
LOCGRID :
Automatic grid shifting added to attempt to get nested grids
inside original grid.
- NLLoc:
Metropolis-Gibbs search:
Initial walk location now set under the station with earliest
arrival time. Algorithm for automatic setting of initial step
size changed.
- NLLoc:
Metropolis-Gibbs search:
Walk algorithm modified to handle the case that new walk
locations are rejected for a large number of consequetive tries.
This case may indicate that the search has found a deep, narrow
minima in misfit.
Grid2GMT:
2D error ellipses replaced by projections of 3D confidence
ellipsoid.
Bug
Fixes:
- Generic
control statement
INCLUDE :
Implemented for programs Vel2Grid, Grid2Time, Time2EQ and NLLoc.
|
20
Jan 1999 |
Warning |
NLLoc:
Magnitude Calculation Method not extensively tested
The
magnitude calculation option in NLLoc, control statement LOCMAG ,
has not yet been extensively tested.
|
20
Jan 1999 |
Known
Bug |
Grid
registration not specified
NonLinLoc software 3D
Grid File format does not distinquish between Grid line
registration (used for travel times, angles, etc) and Pixel
registration (required for velocity models input to
Grid2Time/Podvin-Lecomte) as defined by the GMT plotting package.
|
11
Aug 1998 |
New
Release v1.0 |
NonLinLoc
software v1.0 released (Initial "Beta" version of the
NonLinLoc sofware and documentation.)
|