首页> 外文会议>Conference on Ocean Remote Sensing and Imaging II; Aug 5-6, 2003; San Diego, California, USA >Atmospheric correction of satellite observations of ocean colour with the Navy aerosol model
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Atmospheric correction of satellite observations of ocean colour with the Navy aerosol model

机译:海军气溶胶模型对卫星对海洋颜色的观测的大气校正

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Atmospheric correction of ocean colour is routinely achieved by fitting radiometric observations at near-infrared wavelengths to radiances predicted for a range of aerosol types. The best-fitting candidate aerosol model can then be used to compute radiances in the visible part of the spectrum, enabling an atmospheric correction to be applied there. The Navy Aerosol Model (NAM) is a multi-component aerosol model which may be suitable for this purpose. The components of NAM are closely tied to the physical processes which generate them and this allows for some expectation on the spatial homogeneity of the component optical depths. Presented is an atmospheric correction scheme based upon NAM and implemented for SeaWiFS. Some conclusions are drawn about the efficacy of extrapolating to visible wavelengths those estimates of aerosol type and amount made at near-infrared wavelengths.
机译:通常通过将近红外波长处的辐射观测值与针对各种气溶胶类型预测的辐射率拟合来对海洋颜色进行大气校正。然后,可以使用最合适的候选气溶胶模型来计算光谱可见部分的辐射,从而在此处进行大气校正。海军气溶胶模型(NAM)是一种多组分气溶胶模型,可能适用于此目的。 NAM的组件与生成它们的物理过程紧密相关,因此可以对组件光学深度的空间均匀性有所期望。提出了一种基于NAM并针对SeaWiFS实施的大气校正方案。关于将可见光波长和那些在近红外波长处的气溶胶类型和数量的估计外推到可见波长的功效,得出了一些结论。

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