FindDist4p: Epicentral Distance

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

Description

Calculates epicentral distance given focal depth and ray parameter or takeoff angle

Usage

FindDist4p(phase, h, model, p, takeoff)

Arguments

phase	Phase of arrival (e.g. 'P', 'pS')
h	Focal depth (km)
model	Planet model
p	Ray parameter (s/deg)
takeoff	Takeoff angle (deg)

Details

Only one of 'p', 'takeoff' needs to be specified, and may be a vector. 'phase' and 'h' must be scalars.

Value

List including the following elements:

dist	Vector of surface distances traveled (deg), corresponding to the values in 'p' or 'takeoff'
segx	List of vectors corresponding to 'p' or 'takeoff'. Each vector includes distance coordinates (deg) along the ray path.
segz	List of vectors corresponding to 'p' or 'takeoff'. Each vector includes depth coordinates (km) along the ray path.
segtyp	List of vectors corresponding to 'p' or 'takeoff'. Each vector includes wave type ('P' or 'S') for each segment in the ray. Note that vectors in 'segtyp' have one fewer element than vectors in 'segx' and 'segz' because they describe segments, not points.
resp	Vector of ray parameters for each ray (s/deg).

Author(s)

Jake Anderson

See Also

Traveltime, FindTime4p

Examples

data(model)

FindDist4p('SKKS',100,model,c(4,5))

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