SWOT卫星在湖泊水位变化监测中的应用——以纳木错湖为例

doi:10.13474/j.cnki.11-2246.2026.0704

测绘通报 ›› 2026, Vol. 0 ›› Issue (7): 23-30.doi: 10.13474/j.cnki.11-2246.2026.0704

SWOT卫星在湖泊水位变化监测中的应用——以纳木错湖为例

吴漳达¹, 胡顺强¹, 贺小星², 程怀峰³, 王海城⁴

1. 江西师范大学鄱阳湖湿地与流域研究教育部重点实验室, 江西南昌 330022;
2. 江西理工大学土木与测绘工程学院, 江西赣州 341000;
3. 承德市双峰寺水库工程建设管理中心, 河北承德 067050;
4. 河北省水利水电勘测设计研究院集团有限公司, 河北石家庄 050085

收稿日期:2025-12-05 发布日期:2026-08-15
通讯作者: 胡顺强。E-mail:husq@jxnu.edu.cn
作者简介:吴漳达(2003—),男,硕士生,主要研究方向为卫星测高技术在水文中的应用。E-mail:15260519710@163.com
基金资助:
江西省自然科学基金(20252BAC200264);国家重点研发计划(2024YFC3212200)

Application of the SWOT satellite in monitoring lake water level changes: a case study of Namco Lake

Wu Zhangda¹, Hu Shunqiang¹, He Xiaoxing², Cheng Huaifeng³, Wang Haicheng⁴

1. Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China;
2. School of Civil and Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China;
3. Chengde Shuangfengsi Reservoir Project Construction Management Center, Chengde 067050, China;
4. Hebei Institute of Investigation and Design of Water Conservancy and Hydropower Co., Ltd., Shijiazhuang 050085, China

Received:2025-12-05 Published:2026-08-15

摘要/Abstract

摘要： [目的] 青藏高原被称为“亚洲水塔”,研究其湖泊水位变化对区域生态稳定及气候变化具有重要意义。[方法] 本文以青藏高原的纳木错湖为例。首先,通过SWOT卫星数据提取纳木错湖水位;然后,利用DAHITI及HydroWeb测高水位数据集验证SWOT水位精度;最后,分析降水对纳木错湖水位变化影响。[结果] 结果表明,SWOT卫星提取的水位与DAHITI、HydroWeb测高水位相关性和一致性较好,100 m空间分辨率下不同质量等级组合的SWOT水位与DAHITI、HydroWeb水位的RMSE平均值分别为0.102和0.054 m;相关系数R²平均值分别为0.865和0.942。纳木错湖水位变化与降水量变化呈现出明显的正相关,整体变化趋势基本一致,降水是影响纳木错湖水位变化的原因之一。[结论] 本文研究验证了SWOT卫星在监测纳木错湖水位的可行性,为进一步研究青藏高原湖泊水位与气候变化之间的关系提供了科学依据。

关键词: 青藏高原, 气候变化, SWOT卫星, 纳木错湖, 湖泊水位

Abstract: [Purposes] Studying lake level changes of Qinghai-Xizang Plateau that known as the “Water Tower of Asia” is crucial for understanding regional ecological stability and climate change. [Methods] Here,we takes Namco Lake of Qinghai-Xizang Plateau as a case study.First,the water level of Namco Lake is extracted using SWOT satellite data.Then,the accuracy of the water level extracted by SWOT satellite is verified using DAHITI and HydroWeb altimeter datasets.Finally,we analyzed the the influence of rainfall on the water level changes of Namco Lake. [Findings] The results show that a strong correlation and consistency between the water level extracted by SWOT satellite and those from DAHITI and HydroWeb.The average RMSE values between SWOT water level and the DAHITI and HydroWeb datasets are 0.102 m and 0.054 m,respectively; while the average correlation coefficients (R²) are 0.865 and 0.942,respectively.Furthermore,the water level changes in Namco Lake show a significant positive correlation with rainfall changes,with their overall trends being largely consistent,implying that rainfall as a key factor driving the water level changes in Namco Lake. [Conclusions] This study verifies the feasibility of using SWOT satellite to monitor the water level in Namco Lake and provides a scientific basis for further revealing the relationship between lakes and climate change on the Qinghai-Xizang Plateau.

Key words: Qinghai-Xizang Plateau, climate change, SWOT satellite, Namco Lake, lake level

中图分类号:

P228

吴漳达, 胡顺强, 贺小星, 程怀峰, 王海城. SWOT卫星在湖泊水位变化监测中的应用——以纳木错湖为例[J]. 测绘通报, 2026, 0(7): 23-30.

Wu Zhangda, Hu Shunqiang, He Xiaoxing, Cheng Huaifeng, Wang Haicheng. Application of the SWOT satellite in monitoring lake water level changes: a case study of Namco Lake[J]. Bulletin of Surveying and Mapping, 2026, 0(7): 23-30.

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SWOT卫星在湖泊水位变化监测中的应用——以纳木错湖为例

Application of the SWOT satellite in monitoring lake water level changes: a case study of Namco Lake

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