测绘学报 ›› 2022, Vol. 51 ›› Issue (4): 622-630.doi: 10.11947/j.AGCS.2022.20220030

• 同济大学测绘学科创建90周年 • 上一篇    

红柳江区域陆地水储量变化及其驱动因素分析

张林, 沈云中, 陈秋杰, 王奉伟   

  1. 同济大学测绘与地理学院, 上海 200092
  • 收稿日期:2022-01-14 修回日期:2022-03-04 发布日期:2022-04-24
  • 通讯作者: 沈云中 E-mail:yzshen@tongji.edu.cn
  • 作者简介:张林(1998-),女,博士生,研究方向为GRACE卫星重力应用。.E-mail:2011480@tongji.edu.cn
  • 基金资助:
    国家自然科学基金(41974002;42061134010)

Analysis of terrestrial water storage change and its driving factors of Hongliu River region

ZHANG Lin, SHEN Yunzhong, CHEN Qiujie, WANG Fengwei   

  1. College of Surveying and Geo-informatics, Tongji University, Shanghai 200092, China
  • Received:2022-01-14 Revised:2022-03-04 Published:2022-04-24
  • Supported by:
    The National Natural Science Foundation of China(Nos. 41974002; 42061134010)

摘要: 本文利用CSR-RL06和Tongji-Grace2018时变重力场模型反演了2003年1月—2016年12月红柳江区域陆地水储量变化,并联合降水、蒸散、径流和人类活动耗水等多源数据建立了区域水量平衡方程,定量评估了该区域陆地水储量变化的主要驱动因素。结果表明:①考虑人类活动耗水为区域陆地水储量输出项时,由水量平衡方程闭合差计算的均方根误差降低了39%。②气象水文因素贡献率仅于2009、2011和2016年为负,其均值为-22.5%,其余年份正贡献率均值为47.7%;人类活动耗水贡献率始终为负,其均值为-34.8%。③龙滩水库蓄水变化与该区域陆地水储量变化相关系数为0.66,均存在一年和两年主周期信号。

关键词: 陆地水储量变化, 驱动因素, 水量平衡方程, GRACE, 红柳江区域

Abstract: The terrestrial water storage change (TWSC) from January 2003 to December 2016 over the Hongliu River region (HLRR) is derived from the CSR-RL06 and Tongji-Grace2018 time-variable gravity field models. In addition, the major influencing factors of the regional TWSC are quantified via the water balance equations using precipitation, evapotranspiration, runoff, and human-induced water consumption. The results show that: ① When the water consumption is considered, the root-mean-square error of the water balance is reduced by 39%. ② The annual positive average contribution rate of meteorological and hydrological factors to the HLRR TWSC is 47.7% except for 2009, 2011 and 2016 with the mean negative contribution rate of -22.5%, while the annual negative average contribution rate of the human-related water consumption is -34.8%. ③ The correlation coefficient between water storage changes in the Longtan Reservoir and the TWSC over the Hongliu River region is 0.66, and there are one-year and two-year main cycle signals.

Key words: terrestrial water storage change, drive factor, water balance equation, GRACE, Hongliu River region

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