1961-2010年巴里坤县区域气候特征分析.pdfVIP

宁夏农林科技 ，NingxiaJournalofag6．andFores．Sci．Tech．2013，54(08)：69—70，73 69 1961—2O10年巴里坤县区域气候特征分析 卓世新 ，冯桂红 1．新疆 巴里坤气象局，新疆 巴里坤 839200；2．新疆哈密国家基准气候站，新疆 哈密 839000 摘 要：利用 1961—2O1O年巴里坤县站的气象资料，分析了5O年来气温、降水、日照时数、大风 日数的变化特征 ，结果显示： 巴里坤县冬季、夏季、年均气温均呈上升趋势；20世纪8O～9o年代冬季增温强于夏季，进入 21世纪夏季升温最为明显，总 体来看，夏季平均增温强于冬季。年际降水量分布不均，主要集中在夏季；年降水量总体趋势上升，90年代以后降水明显增 多，但仍然比较干旱。人为因素造成 日照时数呈减少趋势，尤其80年代之后减少趋势比较明显。大风 日数总体呈下降趋势。 关键词：区域气候特征 ；气温；降水；日照；大风；巴里坤县 中图分类号：$161 文献标识码 ：A 文章编号：1002—204X(2013)o8—0069—02 AnAnalysisofRegionalClimate CharacteristicsofBalikun County During 1961—2010 ZHUO Shi-xineta1．(BalikunMeteorologicalBureauofXi~iang，Balikun，Xinjiang839200) AbstractThe variation characteristics of the air temperature，precipitation，sunshine and strong wind during the past 50 yearswere analyzed using themeteorologicaldataofhte Balikun county station during 1961—2010．The resultsshowed htat the air temperatures in htewinterand hte summer aswellas the annualaverage air temperature in Balikun county all showed a wend of increasing．During 1980s一1990sthe air temperature increase during thewinter was s~onger than that during the summer．Enteringthe 21stcentury，theairtemperatureincrease duringhte summerwasmostsignificant．Overall， theaverage airtemperature increaseduring thesummerwasstrongerhtan thatduring thewinter．Theprecipitation distribu— tion between differentyearswasnoteven and the precipitation mainly concentrated in the summer．The overalltrend ofthe annualprecipitation wason the increase and hteprecipitation after1990sincreased significantly butitwasstilldroughtre1- atively．The sunshine duration wason thedecrease due to the human factors，especially after 1980s the trend ofthe de- creasewassignificantrelatively．Overallthe windy dayswere on thedecrease． Key words Regionalclimatecharacteristics；Airtemperature；Precipitation；Sunshine