Variation of Water Leaving Radiance Originated From Bioluminescence in the Yellow Sea and Its Relationship With Inherent Optical Properties and Depth
ZHANG Yu-xiao1, WANG Xi3, CHEN Shu-guo1, 2, 3*, LIU Zhao-wei3, HU Lian-bo1, 2
1. College of Marine Technology/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266100/Sanya 572024, China
2. Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
3. National Satellite Ocean Application Service, Beijing 100081, China
Abstract：Based on the radiative transfer simulation model, using the measured bioluminescence intensity data from different seasons in the Yellow Sea, combined with the simultaneous measured inherent optical properties data, this study analyzes the numerical and spectral variation of the water leaving radiance originating from bioluminescence (Lw-bio) and discusses its relationship with the inherent optical properties and the depth of bioluminescence. The main research results of this paper are as follows: (1) Lw-bio in the Yellow Sea has significant seasonal and spatial variation characteristics. Besides the bioluminescence abundance and ability of the water column, the Lw-bio is also related to the inherent optical properties of the water column and the depth of the bioluminescence source. (2) In terms of spectral variation, the maximum wavelength shift of Lw-bio increases with the deepening of the depth of bioluminescence source and related to the inherent optical properties. In the water column with a large value of inherent optical properties, when the depth of the bioluminescence source is below the surface water column, the maximum wavelength of Lw-bio can change from blue band (474 nm) to green band (up to 578 nm); In the water column with a low value of inherent optical properties, the variation of radiance spectrum is weak. Even if the depth of the bioluminescence source increases, the maximum wavelength of Lw-bio is still in the blue band (up to 500 nm). (3) Although the broad inherent optical properties of the Yellow Sea have a great impact on the geometric depth retrieval of the bioluminescence source, the geometric depth of the bioluminescence source can be retrieved from the spectral information of Lw-bio.
Key words：The Yellow Sea; Radiative transfer; Inherent optical properties; Water leaving radiance originated from bioluminescence
张雨潇，王 希，陈树果，刘召伟，胡连波. 黄海水体生物发光所致离水辐亮度变化及其与固有光学性质和深度的联系[J]. 光谱学与光谱分析, 2022, 42(06): 1899-1906.
ZHANG Yu-xiao, WANG Xi, CHEN Shu-guo, LIU Zhao-wei, HU Lian-bo. Variation of Water Leaving Radiance Originated From Bioluminescence in the Yellow Sea and Its Relationship With Inherent Optical Properties and Depth. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1899-1906.
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