bioRad (version 0.5.1)

beam_range: Calculate radar beam range

Description

Calculates the range (i.e. slant range) given a distance measured along the earth's surface (i.e. down range) and beam elevation.

Usage

beam_range(distance, elev, k = 4/3, lat = 35, re = 6378, rp = 6357)

Arguments

distance

numeric. Distance from the radar as measured along sea level (down range) in m.

elev

numeric. Beam elevation in degrees.

k

Standard refraction coefficient.

lat

Geodetic latitude of the radar in degrees.

re

Earth equatorial radius in km.

rp

Earth polar radius in km.

Value

numeric. Beam range (slant range) in m.

Details

depends on beam_height to calculate beam height.

Examples

# NOT RUN {
# slant range of the 5 degree elevation beam at a down range of 100 km:
beam_range(100000, 5)
# }