Dan Satterfield
Dan's Wild Wild Weather Page: Radar
An explanation of what radar is and how Doppler radar has come to be used in weather detection. The operation of Doppler radar is illustrated and discussed in an easy-to-understand language.
NASA
Nasa: Probing Earth Through the Clouds
This site from the National Aeornautics and Space Administration provides a fun activity for the subject. "Clouds often hide large areas of the Earth's surface. We can use radar to make detailed maps of Earth right through clouds or...