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Influence of ocean surface waves and air bubbles on the polarization characteristics of spaceborne oceanographic lidar returns
Author(s): Qun Liu; Dong Liu; Jian Bai; Yupeng Zhang; Xue Shen
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Paper Abstract

The influence of wind-driven surface waves and air bubbles in water on the polarization characteristics of spaceborne oceanic lidar return signals is investigated through the meridian planes Monte Carlo method. The calculation results demonstrate that the depolarization ratio of lidar return signals increase with the increasing wind speed and nadir angle. However, compared with air bubbles the influence of surface waves could be neglected. The presence of air bubbles with high concentration in the upper ocean has a strong impact on the depolarization ratio. The polarization characteristics of the lidar return depend on the air bubble concentration, the bubble microstructure and the optical properties of oceanic waters. The change of the depolarization ratio is significant when the air bubble concentration exceeds 105 m-3 in open ocean water and 5×105 m-3 in coastal water.

Paper Details

Date Published: 10 October 2018
PDF: 7 pages
Proc. SPIE 10784, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2018, 107840O (10 October 2018); doi: 10.1117/12.2325295
Show Author Affiliations
Qun Liu, Zhejiang Univ. (China)
Dong Liu, Zhejiang Univ. (China)
Jian Bai, Zhejiang Univ. (China)
Yupeng Zhang, Zhejiang Univ. (China)
Xue Shen, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 10784:
Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2018
Charles R. Bostater; Stelios P. Mertikas; Xavier Neyt, Editor(s)

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