title: A new simple concept for ocean colour remote sensing using parallel polarisation radiance.
abstract: Ocean colour remote sensing has supported research on subjects ranging from marine ecosystems to climate change for almost 35 years. However, as the framework for ocean colour remote sensing is based on the radiation intensity at the top-of-atmosphere (TOA), the polarisation of the radiation, which contains additional information on atmospheric and water optical properties, has largely been neglected. In this study, we propose a new simple concept to ocean colour remote sensing that uses parallel polarisation radiance (PPR) instead of the traditional radiation intensity. We use vector radiative transfer simulation and polarimetric satellite sensing data to demonstrate that using PPR has two significant advantages in that it effectively diminishes the sun glint contamination and enhances the ocean colour signal at the TOA. This concept may open new doors for ocean colour remote sensing. We suggest that the next generation of ocean colour sensors should measure PPR to enhance observational capability.
authors.affiliation: 1] State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China [2] Department of Ocean Science and Engineering, Zhejiang University, Hangzhou, China.
authors.forename: Xianqiang
authors.initials: X
authors.lastname: He
authors.affiliation: 1] State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China [2] Institute of Remote Sensing and Earth Sciences, Hangzhou Normal University, Hangzhou, China [3] Department of Ocean Science and Engineering, Zhejiang University, Hangzhou, China.
authors.forename: Delu
authors.initials: D
authors.lastname: Pan
authors.affiliation: 1] State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China [2] Institute of Remote Sensing and Earth Sciences, Hangzhou Normal University, Hangzhou, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Bai
authors.affiliation: State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China.
authors.forename: Difeng
authors.initials: D
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China.
authors.forename: Zengzhou
authors.initials: Z
authors.lastname: Hao