頁籤選單縮合
題名 | 嘉義山區日降雨量之空間分佈特性分析=Analysis of Spatial Distribution of Daily Rainfall in Mountain Areas of Chiayi |
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作者 | 李炳和; 黃學文; Lee, Bing-her; Huang, Shyue-wen; |
期刊 | 中華農業氣象 |
出版日期 | 19970700 |
卷期 | 4:3 1997.07[民86.07] |
頁次 | 頁133-138 |
分類號 | 354.7722 |
語文 | chi |
關鍵詞 | 降雨; 空間分佈; 山區; Rainfall; Spatial distribution; Mountain area; |
中文摘要 | 本研究選取嘉義山區六個測站為代表,分別是阿里山、奮起湖、樟腦寮、大湖、 獺頭、中埔等六站,利用民國八十三年之日降雨資料,依不同之降雨類型,分析各站間日降 雨量的相關程度,結果顯示冬季冷鋒雨之空間刀佈最為平均,即使測站間距離達30公里,其 相關係數仍可達0.8;五、六月間之滯留鋒降雨(梅雨)分佈與冷鋒雨相似,各測站間日降 雨量相關係數在20公里以內仍可達0.8;發生於夏季之熱雷雨和因颱風引進強盛西南氣流所 形成之地形雨,受地形影響甚大,以致空間分佈不均,前者以奮起湖、大湖、中埔三站因處 於同一西南走向之坡谷以致降雨量相似,且較其餘各站為高;後者以阿里山及奮起湖最明顯 ,此二站因海拔高度遠高於其他測站,所以降雨量也最多,且由於奮起湖測站處於西南坡向 ,因而此處於西北坡向的阿里山測站有較高之降雨量。 |
英文摘要 | This research selects 6 observation stations in Chiayi area as model representatives, i.e. A-li-Shan, Fen-Chi-Hu, Chang-nao,Ta-Hu, Lai-ton and Chung- Pu.Daily rainfall data measured by those six stations were first examined and separated into four types of rainfall.Then, the interrelated conditions of the rainfall distributions among stations were analyzed.Results indicated that spatial distribution of cold-front winter rainfall appeared to be the most uniform.The correlation coefficients were still above 0.8 even when the distance between stations reached 30 km.Spatial distribution of Mei-Yu frontal rainfall (in May and June) was similar to that of the cold-front rainfall.The rainfall correlation coefficient among stations were above 0.8 at the radius within 20 km .Thunderstorm precipitation occurring in summer and orographic rainfall induced by the southwesterlies due to typhoons were signifiantly influenced by the topography of the region.About the same amount of thunderstorm rainfall occurred in Fen-Chi-Hu, Ta-Hu, and Chung-Pu, because these three station, lied in different valley and in different aspect, had lower and dissimilar rainfall.The topography affected rainfall significantly in A-Li-shan and Fen-chi-Hu, being higher in the elevation, the rainfall of these two stations much more than the other stations.Besides, Fen-Chi-Hu, located in the southwest aspect, had more precipitation than A-Li-shan which located in the northwest one. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。