Mini-Satellite Fucheng 1 SAR: Interferometry to Monitor Mining-Induced Subsidence and Comparative Analysis with Sentinel-1

IF 4.2 2区地球科学 Q2 ENVIRONMENTAL SCIENCES

Remote Sensing Pub Date : 2024-09-18 DOI:10.3390/rs16183457

Shumin Feng, Keren Dai, Tiegang Sun, Jin Deng, Guangmin Tang, Yakun Han, Weijia Ren, Xiaoru Sang, Chenwei Zhang, Hao Wang

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引用次数: 0

Abstract

Mining-induced subsidence poses a serious hazard to the surrounding environment and infrastructure, necessitating the detection of such subsidence for effective disaster mitigation and the safeguarding of local residents. Fucheng 1 is the first high-resolution mini-satellite interferometric Synthetic Aperture Radar (SAR) launched by China in June 2023. In this study, we used Fucheng 1 SAR images to analyze mining-induced subsidence in Karamay by InSAR Stacking and D-InSAR. The findings were compared with Sentinel-1A imagery to evaluate the effectiveness of Fucheng 1 in monitoring subsidence and its interferometric performance. Analysis revealed significant mining-induced subsidence in Karamay, and the results from Fucheng 1 closely corresponded with those from Sentinel-1A, particularly regarding the extent of the subsidence. It is indicated that the precision of Fucheng 1 SAR imagery has reached leading standards. In addition, due to its higher resolution, the maximum detectable deformation gradient (MDDG) of Fucheng 1 is 2.15 times higher than that of Sentinel images. This study provides data support for the monitoring of mining-induced subsidence in the Karamay and give a theoretical basis for the application of Fucheng 1 in the field of Geohazard monitoring.

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小卫星 "阜成一号 "合成孔径雷达：干涉测量法监测采矿引起的沉降以及与 "哨兵一号 "的比较分析

采矿引起的沉降对周围环境和基础设施造成严重危害，因此有必要对这种沉降进行探测，以有效减轻灾害和保障当地居民的安全。阜成一号是中国于 2023 年 6 月发射的第一颗高分辨率微型卫星干涉合成孔径雷达（SAR）。在本研究中，我们利用 "阜成一号 "合成孔径雷达图像，通过 InSAR Stacking 和 D-InSAR 分析克拉玛依采矿引起的沉降。研究结果与 Sentinel-1A 图像进行了对比，以评估阜成 1 号在监测沉降方面的有效性及其干涉测量性能。分析表明，克拉玛依地区因采矿引起了严重的沉降，阜成 1 号的结果与哨兵-1A 的结果密切吻合，尤其是在沉降范围方面。这表明阜成 1 号合成孔径雷达图像的精度已达到领先水平。此外，由于分辨率较高，阜城 1 号的最大可探测形变梯度（MDDG）是哨兵影像的 2.15 倍。这项研究为克拉玛依地区采矿引起的沉降监测提供了数据支持，为 "阜成一号 "在地质灾害监测领域的应用提供了理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Remote Sensing REMOTE SENSING-

CiteScore

8.30

自引率

24.00%

发文量

5435

审稿时长

20.66 days

期刊介绍： Remote Sensing (ISSN 2072-4292) publishes regular research papers, reviews, letters and communications covering all aspects of the remote sensing process, from instrument design and signal processing to the retrieval of geophysical parameters and their application in geosciences. Our aim is to encourage scientists to publish experimental, theoretical and computational results in as much detail as possible so that results can be easily reproduced. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.