城市化进程中京津冀地区相对湿度时空演变研究  

Study on the spatio-temporal evolution of relative humidity in Beijing-Tianjin-Hebei region in the process of urbanization

作　　者：张茵 余涛 梁晏祯 占玉林 刘艳 陈昕然 王大康 刘奇鑫 曹万云 ZHANG Yin;YU Tao;LIANG Yan-zhen;ZHAN Yu-lin;LIU Yan;CHEN Xin-ran;WANG Da-kang;LIU Qi-xin;CAO Wan-yun(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;School of Electrical,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;State Administration of Science,Technology and Industry for National Defence Major Project Center,Beijing 100101,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,Guangdong,China;Shandong Huayu Aerospace Technology Company Limited,Yantai 264000,Shandong,China)

机构地区：[1]中国科学院空天信息创新研究院,北京100094 [2]中国科学院大学电子电气与通信工程学院,北京100049 [3]国家国防科技工业局重大专项工程中心,北京100101 [4]中国科学院大学,北京100049 [5]南方科技大学环境科学与工程学院,广东深圳518055 [6]山东华宇航天空间技术有限公司,山东烟台264000

出　　处：《湖北农业科学》2022年第10期39-47,共9页Hubei Agricultural Sciences

基　　金：国家重点研发计划项目(2019YFE0127300);高分辨率对地观测系统重大专项(30-Y30F06-9003-20/22);十三五民用航天技术预先研究项目(B0304);山东省重点研发计划项目(2019JZZY020117)。

摘　　要：利用ERA-interim再分析数据和夜间灯光遥感数据,研究了1993、1997、2001、2005、2009、2013年京津冀地区相对湿度(RH)的时空演变与城市化水平之间的定量关系。结果表明,京津冀地区干岛面积比例表现为随时间增加的趋势,与土地城市化率存在较高的正相关。2005年的平均相对湿度与城市化水平的空间相关性表现为负相关,相关系数为-0.730,且在0.01显著性水平以下,空间上RH分布受城市化水平的影响。不同网格粒度下平均相对湿度与城市化水平的相关性随网格粒度增大呈先增强后减弱的趋势,在100 km网格粒度下两者的相关性达到最大(0.700以上)。Using ERA-interim reanalysis data and night light remote sensing data,the quantitative relationship between spatial-tem⁃poral evolution of relative humidity(RH)and urbanization level was researched in the Beijing-Tianjin-Hebei region in 1993,1997,2001,2005,2009 and 2013.The results showed that the proportion of dry islands in the Beijing-Tianjin-Hebei region showed a trend of increasing over time,which was positively correlated with the rate of land urbanization.The spatial correlation between the average relative humidity and urbanization level showed negatively correlated in 2005,with a correlation coefficient of-0.730,which was be⁃low the significance level of 0.01,and the distribution of RH in spatial was affected by the urbanization level.The correlation between average relative humidity and urbanization level at different grid sizes increased firstly and then weakened with grid size increasing,and the correlation between average relative humidity and urbanization level reached the maximum(above 0.700)at 100 km grid size.

关 键 词：ERA-interim再分析数据 夜间灯光 网格 相对湿度 城市化 相关性 

分 类 号：P463[天文地球—大气科学及气象学]