Electromagnetic energy. See Radiation
Electromagnetic Spectrum: Electromagnetic radiation arranged in order of frequency or wavelength.
El Niņo: Warming of the equatorial Pacific Ocean between South America and the Date Line.
A short burst of electromagnetic energy that a radar sends out in a straight line to detect a precipitation target. The straight line that this pulse travels along is called a radar beam.
Pulse Duration ...
Radiator Any source of radiant energy, especially electromagnetic energy. Radio atmometer An instrument designed to measure the effect of sunlight on evaporation from plant foliage.
In general, expresses the rate of transfer per unit area of some condition or physical quantity, such as rainfall, electromagnetic energy, sound, etc. 2. (Or radiant intensity.) Radiant power per unit solid angle; in SI units, W sr−1. 3.
The radar creates an electromagnetic energy pulse which is focused by an antenna and transmitted through the atmosphere. Objects in the path of this electromagnetic pulse, called targets, scatter the electromagnetic energy.
Main Lobe The envelope of electromagnetic energy along the main axis of the radar beam.
Main Stem The reach of a river/stream formed by the tributaries that flow into it.
Pulse Repetition Frequency (PRF) - the amount of time between successive pulses, or bursts, of electromagnetic energy that is transmitted by a radar.
Rayleigh Scattering: Changes in directions of electromagnetic energy by particles whose diameters are 1/16 wavelength or less. This type of scattering is responsible for the sky being blue.
power - The rate, often expressed in watts, at which energy is exchanged or transmitted. In radar it usually refers to the rate at which electromagnetic energy is radiated from or received at the antenna.
RAWSRemote Automated Weather StationsRayleigh ScatteringChanges in directions of electromagnetic energy by particles whose diameters are 1/16 wavelength or less. This type of scattering is responsible for the sky being blue.
 See also: Energy, Atmosphere, Radar, Temperature, Surface
|
