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吉林省蒸发量的时空分布特征
Spatiotemporal Distribution of Evaporation in Jilin Province

杨璐 ¹ 张兵兵 ¹ 王琪 ² 王艳萍 ³ 高莉莉 ¹ 史奎桥 ¹ ^*

文摘	利用吉林省1971—2010年的45个地面气象站逐日气象观测数据,应用累计距平、气候趋势系数、气候倾向率、高桥公式计算并分析吉林省年蒸发皿蒸发量和实际蒸发量的时空分布特征。结果表明:吉林省1971—2010年的蒸发皿蒸发量呈显著下降趋势,其中春季蒸发下降速率最大,在夏、秋、冬三季中存在上升的趋势,但不显著。空间上看,全省蒸发皿蒸发量呈东部减少、中部部分减少、西部增加的趋势,但不同季节的影响范围存在一定的变化。吉林省年实际蒸发量占蒸发皿年蒸发量的25%,实际蒸发量随时间呈微上升趋势,但不显著。在影响蒸发皿蒸发量的气象因子中,风速和温度日较差是主要因素。实际蒸发量与降水量和温度日较差之间的相关性显著,其中温度日较差是实际蒸发量的主要影响因素。
其他语种文摘	Base on the daily meteorological observation data from 1971 to 2010 in Jilin Province,the spatial and temporal distribution characteristics were analyzed in the pan evaporation and actual evaporation by using the accumulated anomaly,climate tendency coefficient,climatic trend rate and Gaoqiao formula methods. The results were as follows.The pan evaporation rate decreased significantly from 1971 to 2010,especially in spring.In the other three seasons,the rate showed a weak increasing tendency.In terms of space,the pan evaporation in Jilin Province was decreasing in the eastern part and parts of the central region and increasing in the western part.However,there were certain changes in different seasons.The actual evaporation accounted for 25%of the pan evaporation in Jilin Province with a slight increasing trend over time.Among the many meteorological factors affecting the pan evaporation,the major factors were wind speed and daily temperature difference.The actual evaporation showed the significant response to the precipitation and daily temperature difference,the daily temperature difference was the more significant factor affecting the actual evaporation.
来源	水土保持研究 ,2019,26(1):197-202 【扩展库】
关键词	气候变化 ; 蒸发量变化趋势 ; 高桥公式 ; 吉林省
地址	1. 锦州市生态与农业气象中心, 辽宁, 锦州, 121001 2. 吉林省气象科学研究所, 长春, 130062 3. 吉林省气象信息网络中心, 长春, 130062
语种	中文
文献类型	研究性论文
ISSN	1005-3409
学科	大气科学(气象学)
基金	中国气象局沈阳大气环境研究所开放基金 ; 辽宁省市县级气象局自筹资金科研项目
文献收藏号	CSCD:6463740