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In this letter, an improved algorithm for aerosol retrieval is presented by employing the non-Lambertian forward model (forward model) (NL_FM) in the Moderate Resolution Imaging Spectroradiometer (MODIS) dark target (DT) algorithm to reduce the uncertainties induced when using the Lambertian FM (L_FM). This new algorithm was applied to MODIS measurements of the whole year of 2008 over Eastern China...
The field spectroradiometer was used to measure spectra of different snow and snow-covered land surface objects in Beijing area. For a pure snow spectrum, the snow reflectance peaks appeared from visible to 800 nm band; there was an obvious absorption valley near the 1030 nm wavelength. Comparing with fresh snow, the reflection peaks of the old snow and melting snow showed decline to varying degrees...
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