宁夏汝箕沟煤田火区高光谱定量遥感探测研究  

Research on Hyperspectral Quantitative Remote Sensing Detection of the Rujigou Coal Fire Area in Ningxia

作　　者：毛耀保[1] 

机构地区：[1]中国煤炭地质总局航测遥感局,西安710054

出　　处：《国土资源遥感》2010年第3期69-75,共7页Remote Sensing for Land & Resources

摘　　要：通过航空高光谱遥感地面定标、波谱特征分析、火区特征地物和热异常信息提取,确定了用于温度反演的热红外波段、拟合关系式和热异常对应辐射温度,探测精度达到了1∶2 000比例尺精度;准确圈定了宁夏汝箕沟煤田火区范围,查清了火区燃烧强度,分析了热扩散规律以及遥感探测热异常与地下煤火热异常的对应关系,实现了将遥感定量调查结果直接用于灭火工程设计的目标。Research on the quantitative remote sensing detection of the Rujigou coal fire area in Ningxia by using the night - time airborne hyperspectral imagery is reported in this paper. Based on synchronous measurement of spectra and temperature, the author performed the spectral analysis and information extraction of indicated ground objects and thermal anomaly for defining the right thermal band for temperature simulation, simulation formula and minimum anomalous temperature,with the detection precision attaining the 1：2 000 scale. The coal fire area was delineated and the combustion intensity was detected accurately. The author also analyzed the thermal diffusion regularity and the corresponding relations between the remotely sensed thermal anomaly and the underground coal fire anomaly, and achieved the goal that remote sensing quantitative detection results could be directly applied to the design of fire- fighting engineering.

关 键 词：航空高光谱 定量遥感 煤层自燃 温度反演 热扩散规律 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]