Study on elastic skeleton storage coefficient in Beijing-Tianjin-Hebei region combining satellite and ground data

被引：0
|
作者：
Zhang Y. [1 ,2 ]
Zhang Y. [1 ,2 ]
Wu H. [1 ]
Liu Q. [1 ,3 ]
Wei J. [1 ]
Kang Y. [1 ,2 ]
机构：
[1] Chinese Academy of Surveying and Mapping, Beijing
[2] School of Surveying and Geographical Sciences, Liaoning Technical University, Fuxin
[3] College of Earth Science and Information Physics, Central South University, Changsha
来源：
Cehui Xuebao/Acta Geodaetica et Cartographica Sinica | 2023年 / 52卷 / 04期
基金：
中国国家自然科学基金;
关键词：
elastic skeleton storage coefficient; GRACE-FO; groundwater; InSAR; land subsidence;
D O I：
10.11947/j.AGCS.2023.20210454
中图分类号：
学科分类号：
摘要：
Due to over-exploitation of groundwater, the soil structure in the Beijing-Tianjin-Hebei Plain has been severely damaged.This study was taken to understand the health status of the current soil structure and give suggestion to the location that suitable for obtaining groundwater in the Beijing-Tianjin-Hebei area. First of all, based on GRACE-FO data and MCTSB-InSAR technology, the groundwater change sequence and subsidence change sequence of the Beijing-Tianjin-Hebei region from 2017 to 2019 are extracted respectively. Then, the neighborhood averaging method was used to achieve the same spatial resolution of the two data, and the elastic skeleton water storage coefficient maps of the Beijing-Tianjin-Hebei region in 2017, 2018 and 2019 were obtained for the first time. Finally, combined with the topography, soil types, rainfall and temperature conditions in each year in the Beijing-Tianjin-Hebei region, a comparative analysis of the spatial and temporal dimensions of the elastic skeleton water storage coefficient map is carried out. The study found that the average soil structure in the Beijing-Tianjin-Hebei region is gradually getting better, but the soil structure in the southeast of the region continues to deteriorate; the soil structure in the northwest of the Beijing-Tianjin-Hebei region is more suitable for exploiting groundwater than the southeast region. © 2023 SinoMaps Press. All rights reserved.
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页码：660 / 669
页数：9
相关论文
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