Optical closure of parameterized bio-optical relationships
Optical closure of parameterized bio-optical relationships
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DOI：
10.1007/s00343-014-3177-4
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发表时间：
2014-03
影响因子：
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通讯作者：
Shuangyan He;J. Fischer;M. Schaale;M. He
中科院分区：
文献类型：
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作者：
Shuangyan He;J. Fischer;M. Schaale;M. He
利用柏林自由大学提出的辐射传输模型矩阵算子方法，对生物光学关系进行了光学闭合研究。作为一个案例研究，光学关闭的生物光学关系的经验参数化与现场数据的东海进行了检查。遥感反射率（Rrs）计算的固有光学特性预测这些生物光学关系，并与发表的原位数据进行比较。结果发现，模拟Rrs是高估了混浊的水。为了实现光学闭合，调整了悬浮颗粒物的吸收和散射系数的生物光学关系。此外，结果表明，Fournier和Forand相位函数得到的调整后的关系比Petzold相位函数性能更好。因此，在将生物光学关系用于局部海域之前，应检查光学闭合度。
An optical closure study on bio-optical relationships was carried out using radiative transfer model matrix operator method developed by Freie Universität Berlin. As a case study, the optical closure of bio-optical relationships empirically parameterized with in situ data for the East China Sea was examined. Remote-sensing reflectance (Rrs) was computed from the inherent optical properties predicted by these biooptical relationships and compared with published in situ data. It was found that the simulatedRrswas overestimated for turbid water. To achieve optical closure, bio-optical relationships for absorption and scattering coefficients for suspended particulate matter were adjusted. Furthermore, the results show that the Fournier and Forand phase functions obtained from the adjusted relationships perform better than the Petzold phase function. Therefore, before bio-optical relationships are used for a local sea area, the optical closure should be examined.