Wang Menghua
National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, Center for Satellite Applications and Research E/RA3, Room 102, 5200 Auth Road, Camp Springs, Maryland 20746, USA.
Appl Opt. 2006 Dec 10;45(35):8951-63. doi: 10.1364/ao.45.008951.
The current ocean color data processing system for the Sea-viewing Wide Field-of-View Sensor (SeaWiFS) and the moderate resolution imaging spectroradiometer (MODIS) uses the Rayleigh lookup tables that were generated using the vector radiative transfer theory with inclusion of the polarization effects. The polarization effects, however, are not accounted for in the aerosol lookup tables for the ocean color data processing. I describe a study of the aerosol polarization effects on the atmospheric correction and aerosol retrieval algorithms in the ocean color remote sensing. Using an efficient method for the multiple vector radiative transfer computations, aerosol lookup tables that include polarization effects are generated. Simulations have been carried out to evaluate the aerosol polarization effects on the derived ocean color and aerosol products for all possible solar-sensor geometries and the various aerosol optical properties. Furthermore, the new aerosol lookup tables have been implemented in the SeaWiFS data processing system and extensively tested and evaluated with SeaWiFS regional and global measurements. Results show that in open oceans (maritime environment), the aerosol polarization effects on the ocean color and aerosol products are usually negligible, while there are some noticeable effects on the derived products in the coastal regions with nonmaritime aerosols.
当前用于宽视场海洋观测传感器（SeaWiFS）和中分辨率成像光谱仪（MODIS）的海洋颜色数据处理系统，使用的瑞利查找表是利用包含偏振效应的矢量辐射传输理论生成的。然而，在海洋颜色数据处理的气溶胶查找表中并未考虑偏振效应。我描述了一项关于气溶胶偏振效应在海洋颜色遥感中对大气校正和气溶胶反演算法影响的研究。通过一种高效的多矢量辐射传输计算方法，生成了包含偏振效应的气溶胶查找表。针对所有可能的太阳 - 传感器几何构型以及各种气溶胶光学特性，进行了模拟以评估气溶胶偏振效应对推导得到的海洋颜色和气溶胶产品的影响。此外，新的气溶胶查找表已在SeaWiFS数据处理系统中实现，并通过SeaWiFS区域和全球测量进行了广泛测试和评估。结果表明，在开阔海洋（海洋环境）中，气溶胶偏振效应通常对海洋颜色和气溶胶产品影响可忽略不计，而在存在非海洋气溶胶的沿海地区，对推导产品有一些显著影响。
