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在蒙古的湖泊储水变化及其原因分析
Huihui Zhao1, Baojin Qiao2, Haiyan Liu1
1Institute of Data and Target Engineering, Information Engineering University, Zhengzhou, 450001, China.
Scientific reports
|October 9, 2024
概括
蒙古湖泊的储水量在1991-2020年间大幅波动,最初增加,然后减少. 降水是这些湖泊变化的主要驱动因素,影响了水资源管理.
科学领域:
- 水文和环境科学 水文和环境科学
- 遥感应用 遥感应用
- 水资源管理 水资源管理
背景情况:
- 蒙古的湖泊是重要的水资源,在过去十年中经历了显著的变化.
- 由于数据有限,监测长期湖水储存 (LWS) 是具有挑战性的.
- 了解湖泊动态对于蒙古有效的水资源管理至关重要.
研究的目的:
- 从1991年到2020年,估计蒙古55个湖泊的湖泊储水 (LWS) 的长期变化.
- 为了确定观察到的LWS变化背后的主要驱动机制.
- 为蒙古的水资源管理和规划提供科学基础.
主要方法:
- 利用先进的陆地观测卫星数字海拔模型 (ALOS DEM) 和联合研究中心 (JRC) 数据集.
- 在1991年至2020年期间,蒙古55个大于10平方公里的湖泊的估计LWS变化.
- 采用了通用线性模型来分析降水,温度和灌面积对LWS变化的影响.
主要成果:
- 从1991年至1997年,LWS总量增加了40.24立方公里,特别是在蒙古西北部.
- 从1998年到2010年,LWS减少了32.44立方公里,从2011年到2020年进一步减少了10.22立方公里.
- 降水解释了LWS变化的45.13%,其次是温度 (26.33%) 和灌面积 (16.72%).
结论:
- 在过去的30年里,蒙古湖泊的水储量表现出显著的变化.
- 降水是影响LWS变化的主要因素,其次是温度和灌.
- 结果为蒙古的可持续水资源管理和政策制定提供了关键的见解.
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