CAJ | 학술논문

针对雪监测的需要和令球变化对雪的影响,在传统对雪研究的基础上,从多角度偏振反射人手,对光线的入射天顶角、探测天顶角、探测方位角、偏振角、雪密度、雪中污染情况、雪下覆背景等影响因素进行了分析.发现这些因素对雪的反射光谱曲线均有影响,而且某些因素对偏振高光谱反射的影响较垂直观测更显著.这影响因素中雪污染情况对雪的反射光谱曲线有明显的改变,其他因素对雪的反射光谱曲线形状变化影响不大,主要是影响雪的反射比值.雪的偏振反射信息的研究具有重要理论意义,也有广泛的应用前景,同时也为利用遥感技术对雪的定量研究提供新的思路和方法.
침대설감측적수요화령구변화대설적영향,재전통대설연구적기출상,종다각도편진반사인수,대광선적입사천정각、탐측천정각、탐측방위각、편진각、설밀도、설중오염정황、설하복배경등영향인소진행료분석.발현저사인소대설적반사광보곡선균유영향,이차모사인소대편진고광보반사적영향교수직관측경현저.저영향인소중설오염정황대설적반사광보곡선유명현적개변,기타인소대설적반사광보곡선형상변화영향불대,주요시영향설적반사비치.설적편진반사신식적연구구유중요이론의의,야유엄범적응용전경,동시야위이용요감기술대설적정량연구제공신적사로화방법.
Due to the need of snow monitoring and the impact of the global change on the snow,on the basis of the traditional research on snow,starting from the perspective of multi-angle polarized reflectance,we analyzed the influencing factors of snow from the incidence zenith angles,the detection zenith angles,the detection azimuth angles,polarized angles,the density of snow,the degree of pollution,and the background of the undersurface.It was found that these factors affected the spectral reflectance values of the snow,and the effect of some factors on the polarization hyperspectral reflectance observation is more evident than in the vertical observation.Among these influencing factors,the pollution of snow leads to an obvious change in the snow reflectance spectrum curve,while other factors have little effect on the shape of the snow reflectance spectrum curve and mainly impact the reflection ratio of the snow.Snow reflectance polarization information has not only important theoretical significance,but also wide application prospect,and provides new ideas and methods for the quantitative research on snow using the remote sensing technology.