Radar Interferometry for Safe Coal Mining in China
نویسندگان
چکیده
Land surface deformation due to underground mining is always a concern to the local communities and environment. The underground coal mines at the study site in Northern China are located quite closely to each other. In order to ensure safe mining as well as to prevent illegal mining activities, differential radar interferometry (DInSAR) was introduced for monitoring mine subsidence. The spaceborne SAR data acquired by ENVISAT (C-band) and ALOS (L-band) were tested in this paper. The limits of radar interferometry were discussed by addressing the issues of decorrelation and deformation phase gradient. The ALOS results show it is more suitable for monitoring the rapid and large land deformation due to underground mining. However, the data acquired in summer season (June – September) have higher noise, which may be caused by the local agriculture.
منابع مشابه
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