摘要
该文研究玄武岩在2π空间的多角度反射光谱、偏振反射光谱特征。实验测定了玄武岩在2π空间上反射光谱、偏振反射光谱与光线入射角、探测角、方位角、波段、偏振性等因子之间的关系。结果表明:1)光线入射角对玄武岩的反射光谱、偏振反射光谱影响很大;2)空间水平方位角对光谱具有偏振(极化)特征。空间竖直探测角的影响是随着光线入射角的不同而显著影响着玄武岩的波形曲线特征;3)波段的不同,影响着玄武岩反射光谱、偏振反射光谱吸收能量的大小,但不显著影响玄武岩的空间波形曲线特征。
The polarized reflectance characteristics of basalt spectrum in 2π space are dealt with in this paper. The relationship data between polarizing reflectance spectrum and other influencing factors are measured. These influencing factors include incidence angle, horizontal azimuth, altitude azimuth, band. According to the results of experiments, the incidence angle factor strongly affected the characteristics of basalt spectrum. When the incidence angle is bigger than 30°, the horizontal azimuth polarizes the basalt spectrum, and elongates the circular spectrum in symmetrical direction. The influence of altitude azimuth is also strong but conditioned on the incidence angles. The different bands have influenced on the energy that the basalt spectrum absorbed, and have no evident influence on the characteristics of wave shape of basalt in 2π space.
出处
《地理与地理信息科学》
CSSCI
CSCD
北大核心
2003年第4期81-83,112,共4页
Geography and Geo-Information Science
基金
国家自然科学基金资助项目(49771057)
