What is a simple way to atmospherically correct Landsat 8 data using Erdas 9.3 or ArcGIS 9.3?
I would advise using the dark object subtraction (DOS) method for atmospheric correction. Essentially, you find a dark object in your scene--such as a deep, dark water body--where you know there is no reflectance. Any brightness values associated with the dark object in your scene are therefore likely the result of atmospheric effects. These values can then be subtracted from the other pixel values.
- Classification and Change Detection Using Landsat TM Data: When and How to Correct Atmospheric Effects?.
- DOS in Erdas Imagine (Youtube)