Schutt John B
Goddard Space Flight Center, Greenbelt, Maryland 20771.
J Res Natl Bur Stand A Phys Chem. 1976 Jul-Aug;80A(4):597-603. doi: 10.6028/jres.080A.058. Epub 1976 Aug 1.
Applications for optical diffusers in space projects are presented which include the functions of reflection, transmittance, and collection. These modes encompass such diverse uses as temperature regulation and ozone concentration monitors. Discussed is the cooperative aspect of diffuse reflectance and environmental stability. Magnesium oxide, sodium chloride and barium sulphate are evaluated in some detail. The importance of scene scattering behavior to modeling the earth's radiation budget and in determining thermal inertias of the earth's surface are discussed, because solar albedo serves as the weighting function in the solar input irradiance. Finally, work in the area of canopy reflectance modeling is reviewed with verification data included whenever available. Some knowledge of the bidirectional reflectance properties of vegetation is necessary for identification, acreage computations, and scene transference.
介绍了光学漫射器在太空项目中的应用,这些应用包括反射、透射和收集功能。这些模式涵盖了温度调节和臭氧浓度监测等多种用途。讨论了漫反射与环境稳定性的协同方面。对氧化镁、氯化钠和硫酸钡进行了较为详细的评估。讨论了场景散射行为对地球辐射收支建模以及确定地球表面热惯性的重要性,因为太阳反照率在太阳输入辐照度中起加权函数的作用。最后,回顾了冠层反射率建模领域的工作,并在可能的情况下纳入了验证数据。为了进行识别、面积计算和场景转移,需要一些关于植被双向反射特性的知识。