基于遥感的煤层自燃灾害区信息提取研究

以大同侏罗纪煤田开采区为研究区,以2010年7月5日Landsat TM影像为数据源,采用单窗算法进行地温反演,结合已知煤火位置信息提取了研究区煤层自燃灾害区,通过野外核查修正了提取成果,对研究成果及所存在的问题进行了探讨,给出了煤层自燃区与遥感影像图套合的三维显示。研究结果表明:研究区内2010年煤层自燃灾害区共有12处,火区面积总计7.61km2,占研究区总面积的1.2%,信息提取准确率83.33%,为遥感技术提取煤层自燃信息提供了技术参考。

The Research on Information Extraction in the Hazard Area of Coal Spontaneous Combustion Based on Remote Sensing

In this research, taking Jurassic Datong Coal Mining Area as an experiment area, Landsat TM images on July 5, 2010 as a data source, and the mono-window algorithm was chosen to retrieve Land Surface Temperature (LST). Combined with the known coal fire location information to extract the coal spontaneous combustion hazard zone in the study area. By correcting the extraction field verification results of research results and the problems were discussed. Result of the extraction was revised by field check and also discussed the problems about the research achievements in this paper. At the same time, given a combined three-dimensional display of coal spontaneous combustion zone and remote sensing image. The results showed that the number of coal spontaneous combustion hazard zone in the study area was 12 in 2010, and the fire area totaled 7.61km2, accounting for 1.2% of the total area. Simultaneously, the accuracy for information extraction was 83.33%. To a certain degree, it provided a technical reference for the extracting coal spontaneous combustion by remote sensing.