AnalyzeLVZ: Analyze Low Velocity Zones

In TauP.R: Earthquake Traveltime Calculations for 1-D Earth Models

Description

Identifies low velocity zones and improves sampling to allow more accurate raypath calculation.

Usage

AnalyzeLVZ(v, vsec, z, rp)

Arguments

v	Velocity vector (km/s)
vsec	Other velocity vector (km/s)
z	Depth vector (km)
rp	Planet radius

Details

Only v is checked for LVZs. However, since a velocity profile requires both P and S velocities, the other velocity vector is provided as vsec and interpolated within LVZs found in v.

Interpolated velocities might not match those returned by InterpModel because calculations are done after a flat earth transform here.

Value

List with following elements:

newv	Velocity (of the same type as input v) vector at new depths (km/s)
newvsec	Velocity (of the same type as input vsec) vector at new depths (km/s)
newz	New depths sampled (km)
criticalz	Critical depths requiring special treatment (km)

Author(s)

Jake Anderson

Examples

data(model)
v = model$vp
vsec = model$vs
z = model$z
rp = model$rp

AnalyzeLVZ(v, vsec, z, rp)

TauP.R documentation built on May 2, 2019, 3:25 a.m.