Analyzing Spectral Characteristics of Water Involving In-Situ Multiangle Polarized Reflectance and Extraction of Water-Leaving Radiance

• Published in: Guang pu xue yu guang pu fen xi Vol. 36; no. 10; p. 3269
• Main Authors: Shen, Qian, Li, Jun-sheng, Zhang, Bing, Wu, Yan-hong, Zou, Lei, Wu, Tai-xia
• Format: Journal Article
• Language: Chinese
• Published: China 01.10.2016
• ISSN: 1000-0593
• DOI: 10.3964/j.issn.1000-0593(2016)10-3269-05

Polarization is defined as an asymmetry in the direction of vibration with respect to the direction of light propagation. Polarization information is an important component to remote sensed data, which comprises spatial, spectral, and radiation information. In optical remote sensing, polarization information supplements spectral information. Polarization-based remote sensing has a significant application potential for analyzing the spectral characteristics of water bodies, wherein a very important technique is eliminating the mirror reflection caused by skylight on the water surface and extracting water-leaving radiance that carry the constituent information. The incident sunlight on the surface of water either reflects or scatters owing to the existence of particles in water, which results in water-leaving signals with strong polarization characteristics. The ongoing experiments on remote sensing involve water polarization cover either clean ocean waters under natural light or indoor simulations of water und