Analysis of a Strong Tornado in the Outer-Region of the Super Typhoon "Sepat" in 2007

Author

Feng, Zheng ; Lian-shou, Chen ; Jian-feng, Zhong

Author_Institution

Chinese Acad. of Meteorol. Sci., Beijing, China

Volume

2

fYear

2009

fDate

March 31 2009-April 2 2009

Firstpage

283

Lastpage

287

Abstract

When the super strong typhoon Sepat came immediately close to the Fujian coastline on the night of August 18, 2007 (coded as 0709 in Chinese convention), a vigorous tornado was derived from the typhoon at 2307 ~ 2320 BST that appeared at the Longgang town, Cangnan county of the Wenzhou region about 300 km away in the forward direction of the typhoon, damaging heavily the life and properties of the inhabitants. Through the analysis of the situation for the tornado and composite reflectivity, vertical wind shear and the storm-relative radial velocity from Doppler observations some typical properties are revealed of the destructive tornado, together with such localized characteristics of the tornado investigated as peninsular topographic effect, land - sea thermal contrast as well as a network of densely distributed rivers that produce local dynamic and thermal effects to intensify the derived tornado.

Keywords

storms; wind; AD 2007 08 18; Cangnan county; China; Doppler observations; Fujian coastline; Longgang town; Wenzhou region; land-sea thermal contrast; peninsular topographic effect; rivers network; storm-relative radial velocity; super typhoon Sepat; tornado; wind shear; Cities and towns; Marine vehicles; Meteorology; Rivers; Robustness; Storms; Tornadoes; Tropical cyclones; Typhoons; Wind; Doppler radar; local dynamic and thermal effects; outer-region of typhoon; tornado;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Engineering, 2009 WRI World Congress on

Conference_Location

Los Angeles, CA

Print_ISBN

978-0-7695-3507-4

Type

conf

DOI

10.1109/CSIE.2009.407

Filename

5171344