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首页> 外文会议>Conference on remote sensing of the ocean, sea ice, coastal waters, and large water regions >An improved profiling method for the measurement of hyperspectral diffuse attenuation coefficients in shallow turbid waters
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An improved profiling method for the measurement of hyperspectral diffuse attenuation coefficients in shallow turbid waters

机译：一种改进的浅浊散流度测量浅浊散热系数的分析方法

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摘要

The measurement of hyperspectral diffuse attenuation coefficients (K_d(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 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 K_d(λ) measurements especially in the short blue and red spectral range, and can even effectively derive near-surface K_d values in the extremely turbid waters with attenuation coefficients greater than 30 m~-1, which dramatically enlarge the K_d(λ) measuring range.
机译：浅浑浊水中的高光谱漫射衰减系数（K_D（λ））不能通过原始讽刺地实现浅浑浊的α分析系统，由于光强度迅速降低，近表面水域的数据较少。在本文中，提出了一种改进的分析系统和加工方法。首先，设计了一个方便的浮力装置，设计并安装在讽刺中？分析器允许分析器靠近海面靠近海面，从而显着提高近表面水中的垂直采样分辨率为1cm / s，特别是在0到1米之间的深度。此外，Cprosoft正在开发定制的处理软件Cprosoft以主观地选择符合其对回归分析的不同要求的各种波长的深度。与原始系统结果的比较表明，我们的新方法可以显着提高K_D（λ）测量的精度，尤其是在短的蓝色和红色光谱范围内，并且甚至可以在极其混浊的水域中有效地推导出衰减系数更大的近表面K_D值超过30 m〜-1，大大放大了K_D（λ）测量范围。

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