Abstract
The diffuse attenuation coefficient, \( K_{d} \), is an inherent optical parameter of water. It is an important hydrologic index for both oceanography and biology. We proposed a new method to retrieve the diffuse attenuation coefficient from airborne LiDAR bathymetry data in this paper. Firstly, a formula was derived for calculating the values of \( K_{d} \) by using waveform from single laser shot. An algorithm was then deduced from the formula. \( K_{d} \) values could be retrieved from this algorithm. A case study on Wuzhizhou island in China was carried out to validate the method, it using a big Optech Aquarius bathymetry data. The results show well agreement with the MODIS products. Compared with other previous algorithms, this new algorithm could obtain the value of \( K_{d} \) from single laser shot, and the method could be applied to laser shots without bottom response even in deep or turbid water area.
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Acknowledgments
This work was supported in part by the Shenzhen Future Industry Development Funding program (No. 201507211219247860), the Shenzhen Scientific Research and Development Funding Program (No. JCYJ20170302144002028), and the Social Science and Technology Development (Key) Project of Dongguan City (No.20185071401606).
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Ding, K., Wang, C., Tao, M., Huang, P. (2019). A New Algorithm for Retrieving Diffuse Attenuation Coefficient Based on Big LiDAR Bathymetry Data. In: Vaidya, J., Zhang, X., Li, J. (eds) Cyberspace Safety and Security. CSS 2019. Lecture Notes in Computer Science(), vol 11982. Springer, Cham. https://doi.org/10.1007/978-3-030-37337-5_11
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