Observed Effect of Mesoscale Vertical Vorticity on Rotation Sense of Dust Devil-Like Vortices in an Urban Area

Fujiwara, Chusei; Yamashita, Kazuya; Fujiyoshi, Yasushi

SOLA, 2012, 8, 25-28

Permalink : https://hdl.handle.net/2115/49502

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アクセス権	open access
URI	https://hdl.handle.net/2115/49502
タイトル	Observed Effect of Mesoscale Vertical Vorticity on Rotation Sense of Dust Devil-Like Vortices in an Urban Area
著者	Fujiwara, Chusei ; Yamashita, Kazuya ; Fujiyoshi, Yasushi
著者名 Fujiwara, Chusei
著者名 Yamashita, Kazuya
e-Rad_Researcher 40142749 著者名 Fujiyoshi, Yasushi
言語	英語
発行日	2012-04-01
出版者	Meteorological Society of Japan
収録物名	SOLA
巻(号)	8
ページ	25-28
抄録	Dust devil-like vortices were detected by a three-dimensional scanning coherent Doppler lidar (3D-CDL) in an urban area of Sapporo, Japan, from April 2005 to July 2007. A total of 57 strong, dust devil-like vortices with vertical vorticity exceeding 0.1 s^[-1] were detected in 8 days of the observation period and were associated with a convective cell (fish net) pattern of wind fields detected by the 3D-CDL. The observed vortices had both rotation senses for 7 days. However, all of 7 dust devil-like vortices were cyclonic on 4 October 2006 when cyclonic mesoscale circulation with 4.5 x 10^[-4] s^[-1] in vertical vorticity existed over the 3D-CDL observation area. This result is the observed evidence that mesoscale circulation affects rotation sense of vortices.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	1349-6476
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2151/sola.2012-007