The ER-2 X-Band Doppler Radar (EXRAD) is a dual-beam, X-band radar that operates on NASA’s ER-2 aircraft. It was originally designed to fly on the Global Hawk but instead was developed for ER-2 to replace the ER-2 Doppler Radar (EDOP). EXRAD measures backscatter to determine radar reflectivity, Doppler velocity, and linear depolarization ratio. These measurements can be used to derive details about the phase, orientation, size, and other properties of precipitation particles. EXRAD operates at the 9.6 GHz frequency and has a range resolution of 37.5 to 300 meters. It has a swath width of 28 km at an altitude of 20 km in scanning mode and has a typical sampling frequency of 0.25 seconds.
Instrument Details
- Radar
- Earth Science > Spectral/engineering > Radar > Doppler VelocityEarth Science > Spectral/engineering > Radar > Radar ReflectivityEarth Science > Atmosphere > PrecipitationEarth Science > Spectral/engineering > Radar > Radar Backscatter
- Troposphere
- 0.25 s
- 37.5-300 m
- 9.6 GHz
- https://doi.org/10.1175/1520-0426(1996)013%3C0795:TERSOT%3E2.0.CO;2
Gerald Heymsfield
Gerald Heymsfield
GSFC
NASA ESTO AITT
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