Title: Atmospheric Correction for ETM+ Imagery Based on High Resolution Aerosol Optical Depth Retrieved from MODIS Data
Abstract:Atmospheric correction is an important step to extract quantitative information from remote sensing data.An atmospheric correction method with the 1-km resolution aerosol optical depth retrieved from ...Atmospheric correction is an important step to extract quantitative information from remote sensing data.An atmospheric correction method with the 1-km resolution aerosol optical depth retrieved from MODIS data is developed,in order to correct the remote sensing image over land.To retrieve aerosol optical depth(AOD) at 1-km resolution over the test site,the sun-photometer observations combining with MODIS data are used to determine the aerosol model,the dark target is selected and the ground surface reflectance is calculated.Comparing the retrieval result with sun-photometer observations,it is found that the relative error of these products is about 10%.Then atmospheric correction has been applied to Landsat ETM+ imagery by using Radiation Transfer Model with the retrieval AOD.The experiments indicate that this method is efficient.Compared with original data,the atmospheric corrected ETM+ spectrum is closer to measured typical objects spectrum,so it is more conducive to extracting ground object spectrum information and target identification.Read More
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 3
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