亚洲高山区冰川厚度变化光学立体和双基SAR卫星监测数据、方法与展望

doi:10.11947/j.AGCS.2024.20230260

测绘学报 ›› 2024, Vol. 53 ›› Issue (5): 779-800.doi: 10.11947/j.AGCS.2024.20230260

• 青藏高原冰冻圈重大变化专栏 • 下一篇

亚洲高山区冰川厚度变化光学立体和双基SAR卫星监测数据、方法与展望

周玉杉¹(), 李新²^,³(), 郑东海²^,³, 任姗姗⁴, 汪赢政⁴, 李志伟¹

^1.中南大学地球科学与信息物理学院，湖南　长沙　410083
^2.中国科学院青藏高原研究所青藏高原地球系统与资源环境重点实验室，北京　100101
^3.中国科学院青藏高原研究所国家青藏高原科学数据中心，北京　100101
^4.兰州大学资源环境学院，甘肃　兰州　730000

收稿日期:2023-06-28 修回日期:2024-03-26 发布日期:2024-06-19
通讯作者: 李新 E-mail:yszhou@csu.edu.cn;xinli@itpcas.ac.cn
作者简介:周玉杉（1991—），男，博士，副教授，研究方向为影像大地测量数据处理与冰川遥感。E-mail：yszhou@csu.edu.cn
基金资助:
国家重点研发计划(2021YFB3900105)

Data, methods and perspectives of optical stereo and bistatic SAR satellites for monitoring glacier thickness change in high-mountain Asia

Yushan ZHOU¹(), Xin LI²^,³(), Donghai ZHENG²^,³, Shanshan REN⁴, Yingzheng WANG⁴, Zhiwei LI¹

^1.School of Geosciences and Info-physics, Central South University, Changsha 410083, China
^2.State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
^3.National Tibetan Plateau Data Center (TPDC), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
^4.College of Geographic Sciences, Lanzhou University, Lanzhou 730000, China

Received:2023-06-28 Revised:2024-03-26 Published:2024-06-19
Contact: Xin LI E-mail:yszhou@csu.edu.cn;xinli@itpcas.ac.cn
About author:ZHOU Yushan (1991—), male, PhD, associate professor, majors in image geodesy data processing and glacier remote sensing. E-mail: yszhou@csu.edu.cn
Supported by:
The National Key Research and Development Program of China(2021YFB3900105)

摘要/Abstract

摘要：

冰川厚度变化是评估区域冰储量变化的最重要指标，以光学立体卫星和双基干涉SAR卫星为代表的冰川区高程测量已成为评估大范围冰储量变化的主要手段。本文首先总结了当前应用于亚洲高山区冰川区的主要光学和雷达卫星数据及其测高精度；然后，对当前冰川厚度变化卫星监测的方法（即监督校正的DEM差分法、自动化校正的DEM差分法、时序DEM参数化回归法和非参数化回归法）及其应用情况进行了梳理和总结，发现当前研究存在冰川雪盖区高程估计不准、雷达波穿透深度估计不准和季节尺度冰厚变化监测难等问题，导致当前对冰川局部变化过程的认识有限；最后，探讨了未来有关冰厚变化监测的潜在发展方向，提出利用当前存档卫星数据、融合多源测高数据、结合未来高时空分辨率观测计划将有助于解决当前所面临的问题。

关键词: 亚洲高山区, 山地冰川, 卫星观测, 厚度变化

Abstract:

Glacier thickness change is the most important indicator to assess the regional ice storage change, and glacier elevation measurements mainly based on optical stereo satellites and bistatic interferometric SAR satellites has become the primary means to assess the change of ice storage on a large scale. Firstly, this paper summarizes the main optical and radar satellite data and their measurement accuracy currently applied to glacierized areas in the high-mountain Asia. Then, we compile and summarize the methods of satellite monitoring of glacier thickness change (i.e. supervised-corrected DEM differencing method, automated-corrected DEM differencing method, time-series DEM parameterized regression method and time-series DEM non-parameterized regression method) and their applications. It is found that the current research suffers from some problems such as inaccurate elevation estimation in snow-covered glacier zones, inaccurate radar penetration depth estimation, and difficulty in monitoring seasonal glacier thickness variation, which leads to extremely limited understanding of some important local processes of glacier changes. Finally, this paper discusses potential research directions concerning the monitoring of glacier thickness changes, and suggests that both the use of archived satellite data and the future high spatial-temporal resolution observation programs and the fusion of multi-source altimetry data will help solve the problems currently faced.

Key words: high-mountain Asia, mountain glaciers, satellite observation, thickness change

中图分类号:

P237

周玉杉, 李新, 郑东海, 任姗姗, 汪赢政, 李志伟. 亚洲高山区冰川厚度变化光学立体和双基SAR卫星监测数据、方法与展望[J]. 测绘学报, 2024, 53(5): 779-800.

Yushan ZHOU, Xin LI, Donghai ZHENG, Shanshan REN, Yingzheng WANG, Zhiwei LI. Data, methods and perspectives of optical stereo and bistatic SAR satellites for monitoring glacier thickness change in high-mountain Asia[J]. Acta Geodaetica et Cartographica Sinica, 2024, 53(5): 779-800.

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亚洲高山区冰川厚度变化光学立体和双基SAR卫星监测数据、方法与展望

Data, methods and perspectives of optical stereo and bistatic SAR satellites for monitoring glacier thickness change in high-mountain Asia

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