摘要
基于秦岭—淮河区域1960—2016年104个气象站逐日日照时数资料,应用趋势分析、相关性分析等方法,研究了秦岭—淮河区域日照时数年、月的时空变化特征与影响因素。结果表明:秦岭—淮河区域年日照时数呈显著减少趋势,平均降幅达到61.9 h/(10 a),受地形与经纬度的影响,年日照时数呈西南少、东北多的特点,受人类活动的影响,东部区域的下降幅度大于西部的;除春季日照时数下降变化不明显外,其他季节日照时数显著下降。20世纪90年代之前,相对湿度是影响日照时数的重要因素;20世纪90年代之后,影响日照时数的主要因素由相对湿度变为降水或气温,在秦岭—淮河区域内的4个省份的任何时段,降水和相对湿度都是影响日照时数的重要因素。
Based on the daily sunshine hours data of 104 meteorological stations in the region between Qinling and Huaihe from 1960 to 2016,the trend analysis and correlation analysis are used to study the temporal and spatial variation characteristics and influencing factors of years and months of sunshine hours in the area between Qinling and Huaihe.The results are as follows.The annual sunshine hours in the area between Qinling and Huaihe show a significant decrease,with an average decrease of 61.9 hours every 10 years.Affected by the terrain and latitude and longitude,the annual sunshine hours are characterized by less in the southwest and more in the northeast.Affected by human activities,the decline in the eastern region is greater than that in the western region.The sunshine hours decrease significantly in other seasons except spring.Before the 1990s,relative humidity was an important factor affecting the hours of sunshine.After the 1990s,the main factor affecting the hours of sunshine changed from relative humidity to precipitation or air temperature.Precipitation and relative humidity are important factors affecting sunshine hours at any time in four provinces of region between Qinling and Huaihe.
作者
王文川
张超
赵晶
毕彦杰
WANG Wenchuan;ZHANG Chao;ZHAO Jing;BI Yanjie(School of Water Conservancy,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)
出处
《华北水利水电大学学报（自然科学版）》
2019年第6期81-88,共8页
Journal of North China University of Water Resources and Electric Power：Natural Science Edition
基金
国家自然科学基金项目(51509088,51709108)
河南省高校科技创新团队项目(18IRTSTHN009)
河南省水环境模拟与治理重点实验室项目(2017016)
关键词
秦岭—淮河区域
日照时数
时空变化
影响因素
region between Qinling and Huaihe
sunshine hours
temporal and spatial variation
influencing factors
作者简介
王文川(1976—),男,河南鹿邑人,教授,博导,博士,从事水文水资源系统分析、遥感信息处理等方面的研究。Email:wangwen1621@163.com;wangwenchuan@ncwu.edu.cn;张超(1991—),男,山东济宁人,硕士研究生,从事水文水资源系统分析、气候变化方面的研究。E-mail:1321230253@qq.com;赵晶(1984—),女,黑龙江大庆人,讲师,博士,从事水利经济与资源管理方面的研究。E-mail:709837705@qq.com;毕彦杰(1986—),男,河南郑州人,讲师,博士,从事流域水循环模拟与实验、气候变化方面的研究。E-mail:835938470@qq.com。
