Spectral Bi-Directional Reflectance of Antarctic Snow and Ice

这项研究是一项调查， 颗粒影响反射图案中的光谱和角度变化 可见光和近红外波段的太阳辐射。 项目 将增加我们对光学性质的理解， 南极冰盖，并将提供一个定量的数据基础， 地球和行星遥感应用。 这个目标 研究的目的是开发经验和定量方法， 用于将卫星测量和其他遥感测量与 雪表面的微物理。 该项目的影响延伸到气候学， 南极洲，因为内部的表面温度被确定为 很大程度上取决于雪的光学特性。 南极 此外，雪表面比中纬度高山雪稳定得多 由于海拔几乎没有日变化， 太阳。 南极洲的冰雪也较少受到污染 烟尘和其他沉积的气溶胶，然后是非极地的雪表面。 该项目是精心设计的，建立在现有的数据库， 解释算法开发中的必要组成部分 用于飞机和卫星观测。

This study is an investigation of how the properties of antarctic snow grains affect spectral and angular variations in the reflectance pattern of solar radiation in the visible and near-infrared bands. The project will increase our understanding of the optical properties of the antarctic ice sheet, and will provide a quantitative data base for polar terrestrial and planetary remote sensing applications. The goal of this research is to develop empirical and quantitative methods which can be used to relate satellite-based and other remotely sensed measurements to the microphysical of the snow surface. The project has implications that extend to the climatology of Antarctica since surface temperatures in the interior are determined to a great extent by the optical properties of the snow. The antarctic snow surface is moreover much more stable than mid-latitude alpine snow surfaces since there is little or no diurnal variation in the elevation of the sun. The antarctic snow and ice sheet is also less contaminated with soot and other deposited aerosols then non-polar snow surfaces. The project is well-designed, builds upon the existing data base, and is a necessary component in the development of interpretation algorithms for aircraft and satellite observations.