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)
Value
List including the following elements:
distVector of surface distances traveled (deg), corresponding to the
values in 'p' or 'takeoff'
segxList of vectors corresponding to 'p' or 'takeoff'. Each
vector includes distance coordinates (deg) along the ray path.
segzList of vectors corresponding to 'p' or 'takeoff'. Each
vector includes depth coordinates (km) along the ray path.
segtypList 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.
respVector of ray parameters for each ray (s/deg).
Details
Only one of 'p', 'takeoff' needs to be specified, and may be a vector.
'phase' and 'h' must be scalars.