Oceanic Lidar: Theory and Experiment

¹ State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
² Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
³ Institute of Physics, National Academy of Sciences of Belarus, Pr. Nezavisimosti 68-2, Minsk 220072, Belarus
⁴ National Ocean Technology Center, Tianjin 300112, China
⁵ The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
⁶ Department of Physics, University of Oxford, Oxford OX1 3PU , UK
⁷ National Satellite Ocean Application Service, Beijing 100081, China
⁸ College of Ocean, Zhejiang University, Hangzhou 310027, China

^* Email: liudongopt@zju.edu.cn
^# zhouyudi@zju.edu.cn

Published online: 7 July 2020

Abstract

Study on the upper ocean is of great significance to the global climate change and carbon cycle. Lidar can be used to effectively detect depth-resolved optical properties of the ocean. However, both theory and experiment of oceanic lidar are limited by complex multiple scattering. Several progresses by Zhejiang University will be illustrated in this paper: 1) a polarized lidar system was developed, and a Monte Carlo model and a radiative transfer model were established (Zhou, et al. remote sensing, 2019; Zhou, et al. Journal of remote sensing, 2019; Xu, et al. and Liu, et al. Journal of remote sensing, 2019); 2) Cross validations are demonstrated to verify the availability of the lidar system and models (Liu, et al. IEEE TGRS, 2019); 3) phase function effects on backscatter and attenuation are studied considering multiple scattering, respectively (Liu, et al. Optics Express, 2019). Oceanic lidar is proven to have great potential in marine studies.