Wang M, Franz B A, Barnes R A, McClain C R
Appl Opt. 2001 Jan 20;40(3):343-8. doi: 10.1364/ao.40.000343.
A simple correction method to remove the spectral bandpass effects of the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) on the derived normalized water-leaving radiances and ocean-near-surface chlorophyll concentration is developed and implemented in the SeaWiFS data-processing system. SeaWiFS has not only in-band response structures but also significant sensor out-of-band contributions. The effects of the SeaWiFS out-of-band contribution at the green bands is particularly significant for the derived normalized water-leaving radiances and therefore for the retrieved ocean-near-surface chlorophyll concentration. With the sensor spectral bandpass corrections, the low chlorophyll concentration is even lower in the clear ocean regions, whereas there are almost no changes for the oceans with a chlorophyll concentration of >0.2 mg/m(3).
一种简单的校正方法被开发出来,并应用于宽视场海洋观测传感器(SeaWiFS)数据处理系统中,用于消除该传感器对推导得到的归一化离水辐射率和海洋近表层叶绿素浓度的光谱带通效应。SeaWiFS不仅具有带内响应结构,还存在显著的传感器带外贡献。对于推导得到的归一化离水辐射率,进而对于反演得到的海洋近表层叶绿素浓度而言,SeaWiFS在绿波段的带外贡献影响尤为显著。经过传感器光谱带通校正后,在清澈海洋区域,低叶绿素浓度变得更低,而对于叶绿素浓度大于0.2mg/m³的海洋,几乎没有变化。