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摘要：【目的】研究悬浮颗粒物密度在黄渤海的空间分布特征及其对水体固有光学特性的影响。【方法】利用 2014 年 11 月以及 2015 年 8 月现场实测数据，计算得到黄渤海悬浮颗粒物密度，绘制出黄渤海悬浮颗粒物密度的空间分布图。将研究区域悬浮颗粒物密度与固有光学特性进行拟合分析。【结果】两个航次悬浮颗粒物密度的空间分布比较复杂，但整体趋势显示中层密度要小于表层和底层。在表层、中层和底层的密度分布图中，黄河口附近均有密度小值区域，山东半岛附近有密度大值区域，随着深度增加该大值区域有南移趋势。悬浮颗粒物密度与比固有光学特性 c*p、b*p、b*bp拟合所得到的 P 值绝大部分小于 0.05，与固有光学特性 cp、bp、bbp 拟合得到的 P 值全部大于 0.05，而与 Qce、Qbe、Qbbe拟合得到的 P 值多数大于 0.05。【结论】悬浮颗粒物密度对比固有光学特性变化影响较大，尤其对 c*p影响达到51%；对 Qce、Qbe、Qbbe 的变化影响一般；对 cp、bp、bbp变化影响较小。
Abstract: 【Objective】 The objective of this study was to investigate the spatial distribution of suspended particle density in the Huang-Bohai Sea and its effect on the intrinsic optical properties of water bodies. 【Method】 Based on the measured data in November 2014 and August 2015, the density of suspended particles in the Yellow Sea and the Bohai Sea was calculated and the spatial distribution of suspended particulate density in the Yellow Sea and the Bohai Sea was plotted. The density and inherent optical properties of suspended particles in the study area were fitted and analyzed. 【Result】 The spatial distribution of suspended particle density in the two voyages was rather complicated. However, the overall trend showed that the density of middle layer was less than the surface layer and the bottom layer. In the density distribution of surface, middle and bottom layers, there is a small density area near the mouth of the Yellow River, and a large density area near Shandong Peninsula. With the depth increasing, the large area has a southward migration trend. The P values obtained by fitting the density of suspended particles to the intrinsic optical properties c * p, b * p and b * bp are mostly less than 0.05, and all the P values fitted with the intrinsic optical properties cp, bp and bbp are greater than 0.05 , While most of the P values fitted with Qce, Qbe, Qbbe were greater than 0.05. 【Conclusion】 The results show that the density of suspended particles has a great influence on the changes of intrinsic optical properties, especially the influence on c * p by 51%, the effects on the changes of Qce, Qbe and Qbbe, and the changes of cp, bp and bbp.