博斯騰湖水位變化特征及其可能影響機制分析

doi:10.3969/2012jms.0117

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博斯騰湖水位變化特征及其可能影響機制分析
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                        10.3969/2012jms.0117
                    
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基金項目:國家科技重大專項水體污染控制與治理項目(2009ZX07106-004);博湖國家環(huán)保公益性行業(yè)科研專項(200909048);江蘇省2011年度普通高校研究生科研創(chuàng)新計劃項目(CXZZ11_0605)

Analysis of the Bosten Lake’s level and its possible mechanism

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應(yīng)用開都河下游大山口水文站徑流和博斯騰湖1956-2009年的逐月水位數(shù)據(jù)和流域內(nèi)各氣象站的氣象數(shù)據(jù),通過模糊聚類等統(tǒng)計方法,分析了博斯騰湖水位變化趨勢及其可能影響因子。結(jié)果表明:博斯騰湖的水位年際變化受開都河流域徑流的影響很大,當(dāng)開都河流域徑流量大時博湖水位較高,且開都河徑流與其上、下游氣溫和降水關(guān)系密切。博斯騰湖水位逐年的月變化基本上可以分為5類,其中最主要的為第一類型和第二類型:第一類為遞減型,特征為季節(jié)變化不明顯,水位在春季較高,以后逐漸降低;第二類為遞增型,特點是季節(jié)變化較第一大類明顯,水位在夏末秋初的時候較高,整體呈現(xiàn)上升趨勢。遞增、遞減型出現(xiàn)的主要原因是受上下游降水和大山口徑流的影響,當(dāng)上下游降水和徑流偏多時水位月際變化出現(xiàn)遞增型,反之易出現(xiàn)遞減型。

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Based on the monthly water level data of Lake Bosten, runoff of Dashankou station and the meteorological data of weather stations in the valley, statistical methods such as fuzzy clustering are used to analyze the characters of monthly variations of water level in Lake Bosten and its possible mechanism. The results show that the annual variation of water level in Lake Bosten is mainly influenced by the runoff of Dashankou station. The bigger the runoff of River Kaidu is, the higher the water level of Lake Bosten is. The runoff of River Kaidu has close relationship with the temperature and precipitation of upstream and downstream. The variations of water level in Lake Bosten can be divided into five categories. The first type shows a regressive tendency with low seasonal variations, which achieves higher water level in spring but then gradually decreases. The second type shows an increasing trend with more obvious seasonal variations than the first one, which gets higher water level in later summer and early autumn. The tendencies of the other three types are relatively special. The main factor that regulates the variation type of water level is the precipitation of the upstream, downstream and the runoff of Kaidu. Higher precipitation and bigger runoff will make the water level show increasing trend and vice versa.

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邱輝,趙巧華,朱偉軍,陶蓉茵,錢昊鐘.博斯騰湖水位變化特征及其可能影響機制分析.氣象科學(xué),2013,33(3):289-295 QIU Hui, ZHAO Qiaohua, ZHU Weijun, TAO Rongyin, QIAN Haozhong. Analysis of the Bosten Lake’s level and its possible mechanism. Journal of the Meteorological Sciences,2013,33(3):289-295

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收稿日期:2011-12-01
最后修改日期:2012-02-14
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在線發(fā)布日期: 2013-06-24
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