2002-2020年海河流域陆地水储量变化的时空变化特征
Temporal and spatial variation characteristics of terrestrial water storage change in the Haihe River Basin from 2002 to 2020
涂焱 1陈阳 2夏江周 2王义东1
作者信息
- 1. 天津师范大学天津市水资源与水环境重点实验室,天津 300387;天津师范大学地理与环境科学学院,天津 300387
- 2. 天津师范大学天津市水资源与水环境重点实验室,天津 300387
- 折叠
摘要
为了探究海河流域陆地水储量变化的时空变化特征,基于2002-2020年GRACE(gravity recovery and cli-mate experiment)卫星和GRACE-FO卫星数据,计算海河流域陆地水储量变化,并通过地下水储量变化估值与地下水位变化的相关性分析GRACE/GRACE-FO卫星数据的可靠性.结果表明:①地下水储量变化估值和地下水位变化之间的相关性较强,相关系数r=0.78.②海河流域陆地水储量变化大致呈现自南向北递减趋势;陆地水储量变化的变化速度为-9.80 mm/a.
Abstract
In order to explore the temporal and spatial variation of terrestrial water storage change in the Haihe River Basin,the terrestrial water storage change in the Haihe River Basin was calculated based on GRACE(Gravity Recovery and Climate Experiment)satellite and GRACE-FO satellite data from 2002 to 2020.The reliability of GRACE/GRACE-FO satellite data was explored through the correlation between valuation of changes in groundwater storage and groundwater level variation.The re-sults showed that:① The correlation between the valuation of changes in groundwater storage and groundwater level variation was strong,and the correlation coefficient was 0.78.② The terrestrial water storage change in Haihe River Basin showed a de-creasing trend from south to north;the annual change rate of terrestrial water storage change reserves is-9.80 mm/a.
关键词
海河流域/陆地水储量变化/GRACE/GRACE-FOKey words
Haihe River Basin/terrestrial water storage change/GRACE/GRACE-FO引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据