Wind and temperature retrievals in the 17 May 1981 Arcadia, Oklahoma, supercell: Ensemble Kalman filter experiments

Dowell et al test the feasibility of using an ensemble Kalman filter (EnKF) to retrieve the wind and temperature fields in an isolated convective storm by applying the technique to observations of the May 17, 1981 tornado in Arcadia OK. The EnKF experiments processed 10 observation volumes of the Ar...

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Bibliographic Details
Published in:Monthly weather review 2004-08, Vol.132 (8), p.1982-2005
Main Authors: DOWELL, David C, FUQING ZHANG, WICKER, Louis J, SNYDER, Chris, CROOK, N. Andrew
Format: Article
Language:English
Subjects:
Doppler effect
Doppler radar
Earth, ocean, space
Exact sciences and technology
External geophysics
Filters
Meteorology
Storms, hurricanes, tornadoes, thunderstorms
Temperature
Tornadoes
Wind
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Summary:Dowell et al test the feasibility of using an ensemble Kalman filter (EnKF) to retrieve the wind and temperature fields in an isolated convective storm by applying the technique to observations of the May 17, 1981 tornado in Arcadia OK. The EnKF experiments processed 10 observation volumes of the Arcadia storm over a period of 47 minutes. Results indicated that assimilating Doppler-velocity observations had relatively little impact on the gross characteristics of the low-level cold pool.
ISSN:0027-0644
1520-0493
DOI:10.1175/1520-0493(2004)132<1982:watrit>2.0.co;2