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北太平洋颗粒后向散射的形状:χ 因子。

Shape of particle backscattering in the North Pacific Ocean: the χ factor.

出版信息

Appl Opt. 2021 Feb 10;60(5):1260-1266. doi: 10.1364/AO.414695.

DOI:10.1364/AO.414695
PMID:33690568
Abstract

Volume scattering functions were measured using two instruments in waters near the Ocean Station Papa (50°N 145°W) and show consistency in estimating the factor attributable to particles (). While in the study area exhibits a limited variability, it could vary significantly when compared with data obtained in various parts of the global oceans. The global comparison also confirms that the minimal variation of is at scattering angles near 120°. With an uncertainty of <10, can be assumed as spectrally independent. For backscatter sensors with wide field of view (FOV), the averaging of scattering within the FOV reduces the values of needed to compute the backscattering coefficient by up to 20% at angles <130.

摘要

体积散射函数使用两台仪器在 Papa 海洋站(50°N 145°W)附近的水域进行测量,结果表明在估算归因于粒子的因子 () 方面具有一致性。虽然在研究区域内 表现出有限的可变性,但与在全球海洋各个区域获得的数据相比,它可能会有显著变化。全球比较还证实,在散射角接近 120°时, 的最小变化。在不确定性 <10 的情况下,可以假定 在光谱上是独立的。对于具有宽视场 (FOV) 的反向散射传感器,在 FOV 内对散射进行平均可将角度 <130 时计算反向散射系数所需的 值降低多达 20%。

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