九華山區(qū)云水資源狀況分析

doi:10.3969/2012jms.0185

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九華山區(qū)云水資源狀況分析
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                        10.3969/2012jms.0185
                    
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Analysis of cloud water situation in Jiuhua Mountain

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九華山區(qū)及周邊的地形是以天臺至大花臺為主脈，四周有低山丘陵合圍。復雜地形下各地氣候差異明顯。應用1980—2010年近30 a觀測資料及山區(qū)不同高度的自動站數(shù)據(jù)，運用大氣邊界層理論及多項式擬合、相關分析等數(shù)理統(tǒng)計方法，研究山區(qū)與丘陵云水資源的差異。結果表明：地形的動力作用影響了山區(qū)局地水汽的輸送條件；山區(qū)下墊面對降水的增雨作用較為明顯，強度越大的降水，其增強作用就越明顯，地形對降水的平均貢獻率為37.6%。山區(qū)與周邊降水分布很不均勻，九華山年平均降水量比周邊區(qū)域多34.1%，山區(qū)水資源遠大于周邊丘陵地區(qū)，前者是后者的3.4倍，且一年四季有盈余，但降水量季節(jié)分布不均，秋季是最易出現(xiàn)干旱缺水的季節(jié)。緩解山區(qū)的旱情要以開源蓄水為主，輔以必要的人工增雨。

Abstract:

The main mountain range of Jiuhua mountain and the surrounding terrain cover an area from Tiantai to Dahuatai, which is surrounded by low hills. In such a complex terrain, the climate difference is obvious. Applying observational data (1980-2010), including automatic weather station at different altitudes and using theory of atmospheric boundary layer and mathematical statistics, cloud water differences between the mountains and hills have been investigated. The results show that the dynamic factor of the terrain has changed the vapor transport conditions of the mountain; the mountains have a more obvious effect on rainfall, and the greater the precipitation intensity is, the more obvious role it plays; the average contribution rate of the terrain precipitation is 37.6%. Mountains and the surrounding's precipitation distribution is very uneven, and Jiuhuashan's average annual rainfall is 34.1% more than the surrounding area's. Water resource in mountain is much larger than in the surrounding hilly areas, the former is 3.4 times more than that of the latter, and there is a surplus all the year, but the distribution is uneven. Autumn is the driest season. It is necessary to find out open source water storage and to be added by artificial rainfall to alleviate the drought of the mountains.

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丁仁海.九華山區(qū)云水資源狀況分析.氣象科學,2013,33(6):701-708 DING Renhai. Analysis of cloud water situation in Jiuhua Mountain. Journal of the Meteorological Sciences,2013,33(6):701-708

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收稿日期:2012-05-16
最后修改日期:2012-07-22
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在線發(fā)布日期: 2013-12-27
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