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Radar research on thunderstorms and lightningApplications of Doppler radar to detection of storm hazards are reviewed. Normal radar sweeps reveal data on reflectivity fields of rain drops, ionized lightning paths, and irregularities in humidity and temperature. Doppler radar permits identification of the targets' speed toward or away from the transmitter through interpretation of the shifts in the microwave frequency. Wind velocity fields can be characterized in three dimensions by the use of two radar units, with a Nyquist limit on the highest wind speeds that may be recorded. Comparisons with models numerically derived from Doppler radar data show substantial agreement in storm formation predictions based on information gathered before the storm. Examples are provided of tornado observations with expanded Nyquist limits, gust fronts, turbulence, lightning and storm structures. Obtaining vertical velocities from reflectivity spectra is discussed.
Document ID
19820052684
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Rust, W. D. (National Oceanic and Atmospheric Administration Norman, OK, United States)
Doviak, R. J. (NOAA, National Severe Storms Laboratory, Norman OK, United States)
Date Acquired
August 10, 2013
Publication Date
June 10, 1982
Publication Information
Publication: Nature
Volume: 297
Subject Category
METEOROLOGY AND CLIMATOLOGY
Distribution Limits
Public
Copyright
Other