beam_distance

Calculates the distance as measured over the earth's surface (the down range)
for a given beam elevation and slant range.

Extract, visualize and summarize aerial movements of birds and
insects from weather radar data. See <doi:10.1111/ecog.04028>
for a software paper describing package and methodologies.

Adriaan M. Dokter

bioRad

Biological Analysis and Visualization of Weather Radar Data

Peter Desmet

Bart Hoekstra

Bart Kranstauber

Hidde Leijnse

Cecilia Nilsson

Nicolas Noé 

Raphaël Nussbaumer

Jurriaan Spaaks

Stijn Van Hoey

Lourens Veen

Liesbeth Verlinden

beam_distance function

<dl><dt>range</dt>
<dd>numeric. Slant range in m, the length of the skywave path
between target and the radar antenna.</dd>
<dt>elev</dt>
<dd>numeric. Beam elevation in degrees.</dd>
<dt>k</dt>
<dd>Standard refraction coefficient.</dd>
<dt>lat</dt>
<dd>Geodetic latitude of the radar in degrees.</dd>
<dt>re</dt>
<dd>Earth equatorial radius in km.</dd>
<dt>rp</dt>
<dd>Earth polar radius in km.</dd></dl>

Arguments

Calculate radar beam distance — beam_distance

<dl>

<dt>range</dt>
<dd>numeric. Slant range in m, the length of the skywave path
between target and the radar antenna.</dd>


<dt>elev</dt>
<dd>numeric. Beam elevation in degrees.</dd>


<dt>k</dt>
<dd>Standard refraction coefficient.</dd>


<dt>lat</dt>
<dd>Geodetic latitude of the radar in degrees.</dd>


<dt>re</dt>
<dd>Earth equatorial radius in km.</dd>


<dt>rp</dt>
<dd>Earth polar radius in km.</dd>

</dl>

Calculate radar beam distance

beam_distance: Calculate radar beam distance

Description

Usage

Value

Arguments

Details

Examples