19 October 2016 An improved profiling method for the measurement of hyperspectral diffuse attenuation coefficents in shallow turbid waters
Author Affiliations +
Abstract
The measurement of hyperspectral diffuse attenuation coefficients (Kd(λ)) in shallow turbid waters cannot be successfully achieved by the original Satlantic profiling system, because of less data available in the near-surface waters due to the rapid decrease of light intensity. In this paper, an improved profiling system and processing method are proposed. Firstly, a convenient buoyancy device is designed and mounted on the Satlantic Profiler II to allow the profiler to loiter close to the sea surface, thereby significantly improving the vertical sampling resolution to 1cm/s in near-surface waters, particularly in the depth between 0 and 1 meter. In addition, customized processing software CProSoft is developed to subjectively select the depths for various wavelengths that meet their different requirement for regression analysis. Comparison with original system results shows that our novel method can significantly improve the accuracy of Kd(λ) measurements especially in the short blue and red spectral range, and can even effectively derive near-surface Kd values in the extremely turbid waters with attenuation coefficients greater than 30 m-1, which dramatically enlarge the Kd(λ) measuring range
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Li Ma, Li Ma, Bangyi Tao, Bangyi Tao, Liangliang Shi, Liangliang Shi, Qiankun Zhu, Qiankun Zhu, } "An improved profiling method for the measurement of hyperspectral diffuse attenuation coefficents in shallow turbid waters", Proc. SPIE 9999, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2016, 999915 (19 October 2016); doi: 10.1117/12.2241358; https://doi.org/10.1117/12.2241358
PROCEEDINGS
6 PAGES


SHARE
Back to Top