对于可见光范围内,冰的反射光中包含部分偏振光,尤其是光滑的冰面,往往会使探测器获得的反射信息中包含更多的偏振信息。对淡水冰与海冰的反射信息进行了测量,同时结合角度信息与光谱信息分析了它们之间偏振反射特性的差异。发现在以偏振度为指标的前提下,海冰与淡水冰之间的差异相对反射信息较大,同时冰表现出了其特有的偏振特性。从而偏振测量可以辅助现有遥感技术更好的检测覆盖在地球表面的冰。
In the visible light range,the reflected light of ice contains a portion of polarized light,especially smooth ice often can make the detector obtain the reflection information that contains more polarization information.The fresh water ice and sea ice reflection information was measured,and combined with the angle information and spectral information,the difference in the polarized reflectance characteristics between them was analyzed.It was found that with the polarization degree as index,the difference in the relative reflectance between sea ice and water ice is larger,and at the same time ice shows its unique polarization characteristics.So that the polarization measurements can assist the existing remote sensing technology for better detection of the ice covering the earth’s surface.