radar

NOAA Completes $150 Million Upgrade to NEXRAD Weather Radar Network

by Shannon H

The National Oceanic and Atmospheric Administration (NOAA) and the National Weather Service (NWS) have announced the completion of a $150 million, nine-year Service Life Extension Program (SLEP) aimed at modernizing the nation’s weather radar network. This vital upgrade extends the… Read More »NOAA Completes $150 Million Upgrade to NEXRAD Weather Radar Network

Large Stovepipe tornado on April 10th, 1979. NOAA Photo Library, NOAA Central Library; OAR/ERL/National Severe Storms Laboratory (NSSL)

The Birth of Doppler Radar

by Shannon H

The genesis of Doppler radar can be traced back to the Doppler effect, a phenomenon proposed by Austrian physicist Christian Doppler in 1842. This principle elucidates the variation between the observed frequency and the emitted frequency of a wave for… Read More »The Birth of Doppler Radar