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|Other Titles:||AN ANALYSIS OF TROPICAL WATER VAPOR FIELDS IN RELATION TO TYPHOON FORMATION|
|Authors:||邊田, 有理江 |
|Author's alias:||HETA, Yurie|
|Journal title:||京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B|
|Abstract:||Monthly averaged atmospheric integrated water vapor (W), sea surface temperature(SST) and cloud amount data distributions over the tropical western Pacific observed fromsatellites are analyzed to study the fields favorable to typhoon formation for northern summerseason; I. E. July-October 1980.Water vapor flux Qs are roughly estimated by 850 mb wind vectors and W.Not higher but lower SST region is generally related with high W or high cloud amountarea near the 10 N zone. The distributions of these parameters are thought to be closelyrelated with each other following the water vapor balance equation; V.Qs-E-P, where Eis evaporation and P is precipitation. If we refer the large high cloud amount area to largeP area, and the high SST and strong 850 mb wind area to large E area, the distributions of(E-P) are roughly correspond to the distributions of V.Qs.Near the large cloud amount area, water vapor flux transported from the southernhemisphere or the eastern Pacific area are characteristic. In addition to the evaporationfrom the sea, these water vapor flux are thought to be necessary and important for themaintenance and development of the disturbances including typhoons.|
|Appears in Collections:||No.32 B-1|
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