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首页> 外文期刊>Estuarine Coastal and Shelf Science >Seasonal and spatial variability of phytoplankton and non-algal absorption in the surface layer of the Baltic
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Seasonal and spatial variability of phytoplankton and non-algal absorption in the surface layer of the Baltic

机译：波罗的海表层浮游植物和非藻类吸收的季节性和空间变异性

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The paper addresses the seasonal variability of coefficients of light absorption by suspended particulate matter a(p)(lambda) in different regions of the Baltic Sea: open-sea waters, coastal waters, the Gulf of Gdansk, the Pomeranian Bay and river mouths. We analysed 865 spectra of light absorption by phytoplankton a(ph)(lambda) and non-algal particles a(NAP)(lambda) in different seasons during 35 cruises of r/v Oceania in the southern Baltic from 2006 to 2012. Depending on season and region, we found distinct differences in the absorption properties of particles suspended in the water with respect both to the spectral shapes of the coefficients a(p)(lambda), a(ph)(lambda) and a(NAP)(lambda), and to the values at the characteristic wavelength of 440 nm. The proportions of phytoplankton governing the absorption properties of the suspended matter varied from 50 to 75%, whereby the greatest spread of these proportions was found in open waters. In contrast, the greatest seasonal variability in the overall absorption coefficients ap occurred in coastal waters.
机译：本文讨论了波罗的海不同地区（公海，沿海水域，格但斯克湾，波美拉尼亚湾和河口）中悬浮颗粒物a（p）（λ）的光吸收系数的季节性变化。我们分析了2006年至2012年在波罗的海南部的35个r / v大洋洲航行期间，浮游植物a（ph）（λ）和非藻类颗粒a（NAP）（λ）在不同季节的865张光吸收光谱。在季节和区域上，我们发现悬浮在水中的颗粒的吸收特性相对于系数a（p）（λ），a（ph）（λ）和a（NAP）（λ）的光谱形状有明显差异）以及特征波长440 nm处的值。浮游植物控制悬浮物吸收特性的比例从50％到75％不等，其中这些比例的最大扩散是在开阔水域中发现的。相反，总吸收系数ap的最大季节性变化发生在沿海水域。

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