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煤层自燃，是中国北方煤田中普遍存在的现象。实践证明，利用遥感影像，圈定火区的范围和位置，对火区进行动态监测，及时为灭火工程提供信息，是一项经济和社会意义很大的工作。分析和提取图像的热红外辐射特征时，需要考虑到影像类型、成像时间、地形条件、气象资料和岩性特征等因素的影响。
Coal seam spontaneous combustion is a common phenomenon in coalfields in northern China. Practice has proved that the use of remote sensing images, delineating the scope and location of the fire area, the dynamic monitoring of the fire area, in time for the fire fighting project to provide information, is a great economic and social work. When analyzing and extracting the thermal infrared radiation characteristics of an image, the influence of such factors as image type, imaging time, topographical conditions, meteorological data and lithological characteristics needs to be considered.