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台灣梅雨季中尺度低壓之氣候特徵

On the Climatological Characteristics of the Mesolow in Taiwan Mei-Yu Season

摘要


本文利用1983-1987年5-6月梅雨季地面每6小時資料,以0.5 × 0.5度經緯度網格方塊,分析台灣地區中尺度低壓之氣候特徵,探討其頻率之時空分佈、生命期、旋生強度與強度日夜變化。發現主要旋生區在台灣東南近海、西北部與西南部沿海,生命期平均為15.5小時,東側者較西側者為長,且強度較強,海上者亦較陸上者為強。中尺度低壓之形成與強度日夜變化,可能均受氣壓半日波影響,唯強度大者所受影響較小。

並列摘要


Mesolows in the Taiwan Mei-Yu seasons of 1983-1987 were analyzed for each 0.5 × 0.5 degree latitude-longitude grid square using 6 hourly surface observations. Spatial and temporal distribution of the mesolow frequency was investigated. The intensity and its diurnal variation were studied.It was found that the mesolows tended to form over the area to the southeast, northwest and southwest of Taiwan. The mean life time was about 15.5 h and it was longer over the eastern side of the Central Mountain Range than over the western side. The mean intensity of mesolow was stronger over the ocean as compared to that over the land was stronger over the eastern side than over the western side. The formation and the diurnal variation of mesolow appeared to be affected by the semi-diurnal pressure wave. The strong mesolow were affected to a lesser degree than the weaker ones.

被引用紀錄


姜禮鴻(2005)。花蓮地區梅雨季降水特性與豪(大)雨個案診斷分析〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2005.02696
曾筠茹(2006)。2004年台灣北部九一一豪雨個案探討〔碩士論文,國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-0207200917341257
梁育儒(2007)。2006年6月9日豪雨個案之模擬分析〔碩士論文,國立臺灣師範大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0021-2910200810553583

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