江淮分水岭地区滁州市降水量变化特征研究
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摘要
为揭示滁州市1952—2012年的降水变化规律,利用其逐日降水量数据,对滁州市年、季、月降水量的变化特征进行分析。结果表明:滁州市年降水量变化比较明显,降水倾向率为10.232mm/10a;四季中春季降水量减少和夏冬降水量增加的趋势较为明显,且春夏降水较多,秋冬较少;各月降水量7月份最多,12月份最少,且分布不均。年降水日数总体呈减少趋势,气候倾向率为-6.628d/10a;四季平均降水强度和降水日数分别呈总体增加和减少趋势,同时春秋两季以中雨为主,夏季主要是暴雨,冬季以小雨和中雨为主;十二个月中2个月以小雨为主,5个月以中雨为主,1个月以大雨为主,4个月以暴雨为主。
In order to reveal the characteristics of precipitation variation in Chuzhou during 1952to2012,the variation characteristics of annual,seasonal,monthly precipitation in Chuzhou city were analyzed based on the data of its precipitation.The results showed that annual precipitation change is obvious and precipitation rate is 10.232mm/10 ain Chuzhou.The precipitation decrease trend in spring is evident,while the precipitation increase trend in summer and winter is more obvious.For the precipitation distribution of four seasons,the precipitation in spring and summer is more than that in autumn and winter.Monthly rainfall distribution is very uneven and the amount of precipitation in July is the most and that in December is the least.The number of days of annual precipitation overall showed a trend of gradual decrease and climate tendency rate is-6.628d/10 a.The overall average rainfall intensity in four seasons is increased,and rainy days have a decreasing trend overall.In four seasons,spring and autumn is given priority to with moderate rain,summer with rainstorm,winter with light rain and moderate rain.In twelve months,January and December is given priority to with light rain,February,March,April,October and November with moderate rain,May with heavy rain,and June,July,August and September with intense fall.
In order to reveal the characteristics of precipitation variation in Chuzhou during 1952to2012,the variation characteristics of annual,seasonal,monthly precipitation in Chuzhou city were analyzed based on the data of its precipitation.The results showed that annual precipitation change is obvious and precipitation rate is 10.232mm/10 ain Chuzhou.The precipitation decrease trend in spring is evident,while the precipitation increase trend in summer and winter is more obvious.For the precipitation distribution of four seasons,the precipitation in spring and summer is more than that in autumn and winter.Monthly rainfall distribution is very uneven and the amount of precipitation in July is the most and that in December is the least.The number of days of annual precipitation overall showed a trend of gradual decrease and climate tendency rate is-6.628d/10 a.The overall average rainfall intensity in four seasons is increased,and rainy days have a decreasing trend overall.In four seasons,spring and autumn is given priority to with moderate rain,summer with rainstorm,winter with light rain and moderate rain.In twelve months,January and December is given priority to with light rain,February,March,April,October and November with moderate rain,May with heavy rain,and June,July,August and September with intense fall.
引文
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[3]成鹏.乌鲁木齐地区近50a降水特征分析[J].干旱区地理,2010,33(4):580-587.
[4]郭志梅,缪启龙,李雄.中国北方地区近50年来气温变化特征的研究[J].地理科学,2005,25(4):448-454.
[5]刘康平,罗静,郑自君.德阳市西部近52a降水变化特征[J].贵州气象,2011,35(5):33-39.
[6]胡娅敏,丁一汇.2000年以来江淮梅雨带北移的可能成因分析[J].气象,2009,35(12):37-43.
[7]梁灵君,杨忠山,白国营.城市化进程对北京城区降水影响探讨[J].北京水务,2011,(3):15-18.
[8]李书严,马京津.城市化进程对北京地区降水的影响分析[J].气象科学,2011,31(4):414-42.
[9]赵冬艳.大连市近60年降水变化特征分析[J].现代农业科技,2011(6):23-24.
[10]张国存,查良松.南京近50年来气候变化及未来趋势分析[J].安徽师范大学学报(自然科学版),2008,31(6):580-584.
[11]吕丽芬,马鹏程.芜湖市城市化气候变化特征分析[J].资源开发与市场,2010,26(1):52-55.
[12]韩丹,程先富,张群,等.安徽省1961-2007年降水特征分析[J].人民长江,2011,42(23):23-269.
[13]查良松,陈晓红,吉中会,等.1970-2008年安徽省气温时空格局变化[J].地理研究,2010,29(4):640-654.
[14]蔡爱民,查良松.安徽省1949-2003年洪旱灾害时序分形特征研究[J].水土保持通报,2005,25(6):73-77.
[15]杨正芬,刘宸钊,郭学文,等.近40年西昌北郊降水变化分析[J].高原山地气象研究,2011,31(2):50-55.
[16]姜秀萍,张桂英,宋玉红,等.开鲁县55年降水变化分析[J].中国农学通报,2011,27(1):275-278.
[17]刘德林.郑州市近60年来降水变化特征及突变分析[J].水土保持研究,2011,18(5):236-238.
[18]郑玉萍,李景林,赵书琴,等.乌鲁木齐近48a城市化进程对降水的影响[J].干旱区地理,2011,34(3):442-448.
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