ANALYSIS ON TYPHOON LONGWANG INTENSITY CHANGES OVER THE OCEAN VIA SATELLITE DATA

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Title:	ANALYSIS ON TYPHOON LONGWANG INTENSITY CHANGES OVER THE OCEAN VIA SATELLITE DATA
Authors:	Liu, CC (Liu, Chung-Chih) Shyu, TY (Shyu, Tian-Yow) Chao, CC (Chao, Chun-Chieh) Lin, YF (Lin, Yu-Feng)
Contributors:	地質系
Keywords:	VORTEX ROSSBY-WAVES SIMULATED TROPICAL CYCLONE DROPWINDSONDE OBSERVATIONS ENVIRONMENTAL-INFLUENCES POTENTIAL VORTICITY HURRICANE TRACK IMPACT FORECASTS IMAGERY WINDS
Date:	2009-03
Issue Date:	2011-12-09 11:06:23 (UTC+8)
Abstract:	The changes in the typhoon intensity ire a very important process. In this Study, we used satellite data to analyze the Cloud structure of Typhoon Lonowang. Results show that the changes in the high level cirrus pattern seemed to have a connection to the typhoon intensity. During the time period from 0600UTC to 1200UTC 30 September 2005, (lie high level cirrus clouds of Typhoon Longwang radiated from the inner core region. The Cloud area that Typhoon Longwang covered grew larger, and the pattern changed from a asymmetric to symmetric distribution during 0000UTC to 1200UTC 30 September 2005. the best track from the Joint Typhoon Warning Center also showed that Typhoon Longwang's intensity evidently decreased, but the speed did not change as Much, and the radius of 17.2 m/s wind speeds increased during that period. According to the divergence and vorticity field of the reanalysis data from file European Center for Medium Range Weather Forecasting forecast model, it shows that the Outflow and rotation of the high level clouds decreased from 0000UTC to 1200UTC 30 September, which may be a key reason in why Typhoon Longwang's intensity decreased.
Appears in Collections:	[Department of Geology] journal articles

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