关于对全球陆地水储量的评估以及围绕政策制定的不同管理因素
1Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India.
Journal of environmental management
|January 6, 2026
概括
GRACE ((-FO) 卫星数据显示,与平均现场趋势 (MFT) 相比,在估计陆地储水 (TWS) 趋势方面存在差异. 马斯康的趋势表明,MFT在许多地区高估了水利,低估了水损失.
科学领域:
- 地球科学 地球科学 地球科学
- 水文学的水文学
- 气候科学 气候科学
背景情况:
- 自2002年以来,GRACE和GRACE-FO卫星任务提供了几乎连续的地球质量观测.
- 陆地储水 (TWS) 是一个重要的气候变量,但GRACE ((-FO) 数据的适用性对于水管理者来说在区域规模上是有限的.
研究的目的:
- 将GRACE(-FO) Mascon趋势与平均现场趋势 (MFT) 进行比较,以改进空间趋势分析.
- 分析影响选择热点地区TWS趋势的气候和人为因素.
- 评估地下水政策和干预措施对TWS的影响.
主要方法:
- 与全球土地和34个关键地区的MFT相比,GRACE(-FO) Mascon的趋势.
- 选择了五个热点地区 (ROI) 进行深入分析.
- 分析了气候和人为因素,并与现场地下水数据进行比较.
主要成果:
- 在MFT和Mascon趋势之间观察到显著差异,特别是在大冰块地区.
- 在23个地区,MFT高估了水利,在9个地区低估了水损失.
- 气候影响了TWS的ROI4趋势 (73.4%),而人为因素在ROI3 (76.0%) 和ROI1 (64.0%) 中占主导地位.
结论:
- 马斯康的趋势与现场数据更符合,这表明MFT的高估趋势.
- 由于政策和充电干预,在一些ROI中观察到地下水回收.
- 通过明智的管理策略,证明了可持续的含水层系统的潜力.
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