Image-Based Atmospheric Correction Background & Current Recommended Methods
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Atmospheric Correction Background Information Pages (all on this website):
2) Chavez (1988) Original Landsat TM Base of Histogram DOS Scatter Reflectance Method
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IMPORTANT: FREE QGIS (VERSION 3) NOW HAS THE CAPABILITY OF DEVELOPING A RASTER ATTRIBUTE TABLE, SO THE FREQUENCY 50 ATTRIBUTE TABLE ATMOSPHERIC CORRECTION METHOD CAN BE USED WITH QGIS. QGIS VERSIOIN 3.4.14-1 CAN BE DOWNLOADED FROM THIS WEBSITE HERE.
RECOMMENDED Landsat 8 & Sentinel-2 Atmospheric Scatter Establishment in ArcGIS & QGIS
1) ArcGIS Users for Landsat 8: Lowest Valid Value or Frequency 50 - .008 Attribute Table Method
2) ArcGIS Users for Sentinel-2: Frequency 50 - .008 Attribute Table Method
3) QGIS (free; use Version 3.4.14-1) Users for Landsat 8: Lowest Valid Value or Frequency 50 - .008 Attribute Table Method
4) QGIS (free; use Version 3.4.14-1) Users for Sentinel-2: Frequency 50 - .008 Attribute Table Method
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SCATTER CALCULATORS & LOOKUP TABLES
Landsat 8 & Sentinel-2 Relative Scatter Calculator & Lookup Table
Landsat 4, 5, and 7 Relative Scatter Table
References
Chavez, P.S., Jr. 1996. Image-based atmospheric corrections–revisited and improved. Photogrammetric Engineering and Remote Sensing 62(9): pp.1025-1036.
Chavez, P.S., Jr. 1988. An improved dark-object subtraction technique for atmospheric scattering correction of multispectral data. Remote Sensing of Environment 24: pp.459-479.