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- Title
An Improved Method for Estimating Radar Echo-Top Height.
- Authors
Lakshmanan, Valliappa; Hondl, Kurt; Potvin, Corey K.; Preignitz, David
- Abstract
It is demonstrated that the traditional method, in widespread use on Next Generation Weather Radar (NEXRAD) and other radar systems, to compute echo-top heights results in both under- and overestimates. It is proposed that echo tops be computed by interpolating between elevation scans that bracket the echo-top threshold. The traditional and proposed techniques are evaluated using simulated radar samples of a modeled thunderstorm and by sampling a high-resolution range-height indicator (RHI) of a real thunderstorm. It is shown that the proposed method results in smaller errors when higher-elevation scans are available.
- Subjects
RADAR cross sections; RADAR meteorology; THUNDERSTORM forecasting; ECHO; ESTIMATION theory; RADAR simulation
- Publication
Weather & Forecasting, 2013, Vol 28, Issue 2, p481
- ISSN
0882-8156
- Publication type
Article
- DOI
10.1175/WAF-D-12-00084.1