黄渤海悬浮颗粒物散射特性研究  

Light Scattering Properties of Suspended Particulate Matter in Yellow Sea and Bohai Sea

作　　者：沈晓晶[1] 丘仲锋[1] 孙德勇[1] 何宜军[1] 王胜强[1] 

机构地区：[1]南京信息工程大学海洋科学学院,江苏南京210044

出　　处：《广西科学》2015年第3期308-314,321,共8页Guangxi Sciences

基　　金：国家自然科学基金项目(41276186);国家海洋公益性行业专项(201005030);浙江省十二五生态建设项目:浙江省近岸海域浮标实时监测系统建设项目资助

摘　　要：【目的】研究悬浮颗粒物的散射特性,用以描述水体固有光学特性。【方法】利用2014年11月黄渤海海区航测数据,分别选取555nm和532nm作为参考波长,建立悬浮颗粒物散射及后向散射的光谱模型,并对模型拟合效果进行检验;此外,还建立了悬浮颗粒物散射参数与水体组分浓度的关系模型。【结果】模型验证结果表明:光谱模型的平均相对误差绝对值(MAPE)分别在60%和35%以内;散射参数与悬浮颗粒物质量浓度模型MAPE的最小值仅为15.0%。【结论】黄渤海颗粒物散射特性主要由非藻类颗粒物主导。【Objective】The scattering properties of suspended particulates were analyzed to describe important inherent optical properties of water.【Methods】In this study,light scattering properties of suspended particulate matter in Yellow Sea and Bohai Sea were investigated in November 2014.Based on these data,spectrum models of the scattering and backscattering coefficient of suspended particulate matter were developed using 555 nm and 532 nm as the reference bands.In addition,estimation models of scattering parameters were developed using concentrations of water constitutes.【Results】The model performance assessments indicated that the mean absolute percentage errors（MAPE）of spectrum models were within 60% and 35%.Among the estimation models of scattering properties using concentrations of water constitutes,those models using concentrations of suspended particulate matter are the best,with the minimum MAPE of 15%.【Conclusion】These results imply that non-algal particles may be the dominant component controlling the scattering properties of suspended particulate matter in this region.

关 键 词：悬浮颗粒物 散射 后向散射 模型建立 

分 类 号：P733.3[天文地球—物理海洋学]