Scattering of Radiation of the Sun and the Sky from Two Dimensional Rough Sea Surfaces

Authors: Yandong Z.¹; Zhensen W.²

Source: International Journal of Infrared and Millimeter Waves, Volume 25, Number 6, June 2004 , pp. 1013-1022(10)

Publisher: Springer

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Abstract:

The scattering of optical wave from two dimensional rough sea surfaces is studied first with method of facets. The sea surface is divided into many facets, and each facet is treated as a surface with small roughness instead of a smooth plane, therefore more practical and effective. In addition the shadowing function of sea surfaces for arbitrary incident and scattering angles is numerically calculated with the Z-BUFFER method, which applies to any kinks of rough surfaces compared with the methods available. Finally the spectral irradiance of the sun and the spectral radiance of the sky for different time at sea level with fine weather are obtained with the software of Lowtran7, and the scattering of the radiation of the sun and the sky from two dimensional rough sea surfaces for different time, waveband and wind speed is studied, which is of great reference value for reducing the interference to the infrared detector due to the scattering of the radiation of the sun and the sky from sea surfaces.

Keywords: sea surfaces; method of facets; infrared radiation; shadowing effect; scattering

Document Type: Research article

DOI: http://dx.doi.org/10.1023/B:IJIM.0000030799.14315.0d

Affiliations: 1: School of Science, Xidian University, Xi'an 710071, Shaanxi Province, People's Republic of China., Email: ydzhang@mail.xidian.edu.cn 2: School of Science, Xidian University, Xi'an 710071, Shaanxi Province, People's Republic of China

Publication date: 2004-06-01