UBC Theses and Dissertations
Modeling and estimating atmospheric effects in Landsat imagery Lee, Tim Kam
The values recorded by the Landsat series of sensors are influenced by local topography and atmosphere, as well as by ground cover. In order to determine the albedo at a point in the satellite image, effects due to topography and atmosphere must be removed. Topographic effects can be predicted by a reflectance map. Atmospheric effects are modeled mathematically in terms of solar irradiance, sky irradiance, path radiance and optical depth. There are six unknown parameters in the model. These are estimated with the help of a digital elevation data. Finally the albedo map is generated.
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