基于降水数据重构的中国大陆区域陆地水储量研究  

Study on terrestrial water storage in Chinese mainland based on precipitation data reconstruction

作　　者：杨元元 姚艳丽 王中华 何在民 广伟 肖恭伟 YANG Yuanyuan;YAO Yanli;WANG Zhonghua;HE Zaimin;GUANG Wei;XIAO Gongwei(School of Urban and Planning,Yancheng Teachers University,Yancheng 224007,China;North Jiangsu Institute of Agricultural and Rural Modernization,Yancheng 224007,China;Yancheng Institute of Urban-Rural Integration Development,Yancheng 224007,China;Wuhan Geotechnical Engineering and Surveying Co.,Ltd.,Wuhan 430022,China;School of Communications and Information Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China)

机构地区：[1]盐城师范学院城市与规划学院,江苏盐城224007 [2]苏北农业农村现代化研究院,江苏盐城224007 [3]盐城城乡融合发展研究院,江苏盐城224007 [4]武汉市勘察设计有限公司,湖北武汉430022 [5]西安邮电大学通信与信息工程学院,陕西西安710121

出　　处：《西安邮电大学学报》2023年第5期102-110,共9页Journal of Xi’an University of Posts and Telecommunications

基　　金：国家自然科学基金项目(42304033);国家重点实验室开放基金项目(SKLGED2022-2-1);陕西省自然科学基础研究计划项目(2023-JC-QN-0278)。

摘　　要：针对重力恢复与气候试验(Gravity Recovery and Climate Experiment,GRACE)和其后继卫星(GRACE Follow-on,GRACE-FO)之间存在约1年的观测间断问题,利用降水和温度数据对陆地水储量间断期数据进行重构。以中国大陆区域陆地水储量异常(Terrestrial Water Storage Anomaly,TWSA)研究为例,采用时间序列分析法补充数据间断,并对重构效果进行评价。结果表明,基于降水数据的重构方法可较好地补充中国大陆区域的TWSA,各流域间断期前后重构序列和原序列相关系数均超过0.8,在相对湿润的长江流域和珠江流域重构效果较好。In view of the problem that there is about 1 year observation gap between the gravity recovery and climate experiment(GRACE)and its successor satellite(GRACE Follow-on,GRACE-FO),the precipitation data and the temperature are used to reconstruct the data in the land water storage gap period.The study of the regional terrestrial water storage anomaly(TWSA)in China's Mainland is taken as an example,and the time series decomposition methods are adopted to fill the data discontinuity,and to evaluate the reconstruction effect.The results show that the precipitation driven reconstruction method can fill the TWSA in China's Mainland well,and the correlation coefficients between the reconstructed and original sequences before and after the hiatus period of each basin are greater than 0.8.The reconstruction effect is better in relatively wet regions,such as the Yangtze River basin and the Pearl River basin.

关 键 词：重力恢复与气候试验 后继卫星 降水数据 时间序列分析 陆地水储量 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构] P228[自动化与计算机技术—计算机科学与技术]