高寒地区油砂资源提取方法研究

Research on Extraction Method of Oil Sands Resources in High Altitude and Cold Area

以青海冷湖地区为例,首先对研究区Hyperion影像数据进行预处理,得到地表真实反射率;再将该地区野外采集的油砂进行光谱测量,得到油砂端元波谱;然后采用波谱角填图法对研究区进行油砂匹配填图。结果表明,该方法能较准确地预测油砂资源的分布情况。因此,综合利用高光谱遥感影像和野外采集的油砂光谱信息,对我国西部高寒地区进行宏观的油砂资源分布填图,是一种可行的技术手段。

Taking Lenghu Area in Qinghai Province for example, we took a series of pre-processing for Hyperion images data, and got the surface true reflectivity at first. And then, we measured the oil sands spectral, and got the spectrum. Finally, we used the spectral angle mapping method to do the oil sands matching mapping in the study area. The result shows that the method can accurately predict the distribution of oil sands. Hence, the comprehensive utilization of hyperspectral remote sensing images and the oil sands spectrum information in oil sands resources macroscopic distribution mapping in western high altitude and cold area of our country, is a feasible technology.