Utilities - Miscellaneous utility programs

Utilities for format conversion, grid manipulation, etc.

 

hypoe2hyp - fpfit2hyp - oct2grid - Vel2Grid3D - scat2latlon - Time2Angles - [NonLinLoc Home]

 

hypoe2hyp

Converts a file containing HYPOELLIPSE hypocenter summary records to a file in NonLinLoc Hypocenter-Phase summary format. Optionally, the events written to output can be selected based on cutoff values for the maximum length of the condfidence ellpsiod major axis, the maximum RMS misfit, the minimum number of observation readings, or the maximum azimuth gap.

Synopsis:

hypoe2hyp inputHypoellipseFile outputNonLinLocHypFile [EllLenMax [RMSMax [NRdgsMin [GapMax]]]]

Parameters:

inputHypoellipseFile (chars)
specifies the complete path and filename for an existing HYPOELLIPSE hypocenter summary file.
outputNonLinLocHypFile (chars)
specifies the complete path, filename and file extension for the output NonLinLoc Hypocenter-Phase summary file. The extension .hyp is reccommended.
EllLenMax (float, default=1.0e6)
maximum length of the condfidence ellpsoid major axis for event selection.
RMSMax (float, default=1.0e6)
maximum RMS misfit in seconds for event selection.
NRdgsMin (int, default=0)
minimum number of observation readings for event selection.
GapMax (int, default=360)
maximum  azimuthal station gap in degrees  for event selection.

Notes:

  1. If a given event slection criteria is used, then values for all preceeding selection criteria on the comand line must also be included.
  2. Only a subset of the NonLinLoc Hypocenter-Phase file format lines are included in the output.

 

fpfit2hyp

Converts a file containing FPFIT (Reasenberg et al., 1985) focal mechanism summary records to a file in NonLinLoc Hypocenter-Phase summary format. Optionally, the events written to output can be selected based on cutoff values for the the maximum RMS misfit for the mechanism determination, the maximum RMS misfit for the event location, the minimum number of observation readings, or the maximum azimuth gap.

Synopsis:

fpfit2hyp inputFPFITSumFile outputNonLinLocHypFile [MechMisfitMax [RMSMax [NRdgsMin [GapMax]]]]

Parameters:

inputFPFITSumFile (chars)
specifies the complete path and filename for an existing FPFIT summary file. (The extension for this file is usually .sum).
outputNonLinLocHypFile (chars)
specifies the complete path, filename and file extension for the output NonLinLoc Hypocenter-Phase summary file. The extension .hyp is reccommended.
MechMisfitMax (float, default=1.0e6)
maximum RMS misfit in seconds of the mechanism determination for event selection.
RMSMax (float, default=1.0e6)
maximum RMS misfit in seconds of the event location for event selection.
NRdgsMin (int, default=0)
minimum number of observation readings for event selection.
GapMax (int, default=360)
maximum  azimuthal station gap in degrees for event selection.

Notes:

  1. If a given event selection criteria is used, then values for all preceeding selection criteria on the command line must also be included.
  2. Only a subset of the NonLinLoc Hypocenter-Phase file format lines are included in the output.

 

oct2grid

Converts an OctTree tree format file to a NonLinLoc 3D Grid file (*.hdr, *.buf).

 

Vel2Grid3D

Generates a 3-D vel/slowness model in NonLinLoc 3D Grid file format (*.hdr, *.buf) from a 3-D velocity model generated by SimulPS or FDTomo.

 

scat2latlon

Converts binary event scatter files (*.scat) to lat/lon ascii files (*.scat.xyz).

 

Time2Angles

Calculate take-off angle grids (*.hdr, *.buf) from travel-time grids (*.hdr, *.buf).

 

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Anthony Lomax