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Title: 台風発生期の流れの場についての解析
Other Titles: AN OBSERVATIONAL ANALYSIS OF TROPICAL WIND FIELDS IN RELATION TO TYPHOON FORMATION BETWEEN JULY AND OCTOBER, 1980
Authors: 邊田, 有理江  KAKEN_name
光田, 寧  KAKEN_name
Author's alias: HETA, Yurie
MITSUTA, Yasushi
Issue Date: 1-Apr-1988
Publisher: 京都大学防災研究所
Journal title: 京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B
Volume: 31
Issue: B-1
Start page: 219
End page: 236
Abstract: The characteristics of the upper (200 mb) and lower (850 mb) tropospheric wind fields duringtyphoon season, between July and October in 1980, were analyzed. There were 16 tropicalstorms formed during this period over the northern part of the Western Pasific. GMS satellitewind data and sonde wind data are used to make the grid point wind fields. To analyze the low-er wind fields, MASCON model is used to adjust the interpolated wind fields.In latitudes of 5N-15N at lower level westerly wind in the western part is usually boundedon the east by easterly wind. Many of analyzed tropical storms became tropical depressions nearthis boundery area. In the divergence and relative vorticity fields, the disturbances which havepositive vorticity and convergence at 850 mb-level, and negative vorticity and divergence at 200mb level can be traced from the area around 170 E about 2-3 days before the formations of tro-pical depressions. The disturbances propagate west-northwestward and their paths are not de-pendent on that they later develop into typhoons or not.
URL: http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html
URI: http://hdl.handle.net/2433/72067
Appears in Collections:No.31 B-1

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