四維變分都卜勒雷達分析系統於複雜地形之定量降雨預報研究;Using a four-dimensional variational Doppler radar analysis system built over complex terrain to improve the convective scale quantitative precipitation forecast in Taiwan and vicinity area.

NCUIR > College of Earth Sciences > Department of Atmospheric Sciences > Research Project > Item 987654321/69831

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/69831

Title:	四維變分都卜勒雷達分析系統於複雜地形之定量降雨預報研究;Using a four-dimensional variational Doppler radar analysis system built over complex terrain to improve the convective scale quantitative precipitation forecast in Taiwan and vicinity area.
Authors:	廖宇慶
Contributors:	大氣科學學系
Keywords:	氣象雷達;資料同化;四維變分;沉浸邊界法(IBM);都卜勒雷達變分分析系統;Variational Doppler Radar Analysis System;Immersed Boundary Method;4DVAR;Data Assimilation;Weather Rradar;大氣科學
Date:	2016-03-29
Issue Date:	2016-03-29 17:34:54 (UTC+8)
Publisher:	交通部中央氣象局
Abstract:	台灣因為其特殊的地理位置與地形條件，使得針對劇烈天氣的定量降雨預報十分具有挑戰性。目前全台有九部陸基式氣象雷達，以及一部研究用的移動式雙偏極化都卜勒雷達，在未來的3年內還會再建置4部雷達，如何能最佳化利用這些大量的雷達資料，以提升數值模式對降雨預報的精確度，是一兼具學術研究與作業應用價值的課題。本研究以四維變分同化技術為研究方法，即使用Variational Doppler Radar Analysis System (VDRAS) 為主要的運算平臺。VDRAS近來已有多個成功的應用案例，如:2000年;Due to the particular geography and topography, the quantitative precipitation forecast (QPF) of severe weather in Taiwan becomes much more challenging. Currently, there are nine ground based weather radars around the island and also one mobile dual-polar;研究期間：10401~10412
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Department of Atmospheric Sciences] Research Project

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