Smyth Timothy J, Moore Gerald F, Hirata Takafumi, Aiken James
Plymouth Marine Laboratory, Prospect Place, Plymouth, UK.
Appl Opt. 2006 Nov 1;45(31):8116-31. doi: 10.1364/ao.45.008116.
A semianalytical approach to the problem of determining inherent optical properties from satellite and in situ ocean color data is presented. The model uses empirically derived spectral slopes between neighboring wavebands in combination with radiative transfer modeling to determine the spectral absorption (alpha) and backscatter (b(b)); these values are then further decomposed into absorption due to phytoplankton, detrital, and colored dissolved organic matter components. When compared with over 400 in situ data points the model makes good retrievals of the total absorption and backscatter across the entire spectrum, with regression slopes close to unity, little or no bias, high percentage of variance explained, and low rms errors.
本文提出了一种半解析方法，用于从卫星和现场海洋颜色数据中确定固有光学特性的问题。该模型利用经验推导的相邻波段之间的光谱斜率，并结合辐射传输模型来确定光谱吸收系数（α）和后向散射系数（b(b)）；然后将这些值进一步分解为浮游植物、碎屑和有色溶解有机物成分的吸收。与400多个现场数据点相比，该模型能够很好地反演整个光谱范围内的总吸收和后向散射，回归斜率接近1，偏差很小或没有偏差，可解释的方差百分比很高，均方根误差很低。
