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Crop Agriculture

Image-Based Atmospheric Correction Background & Current Recommended Methods

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Atmospheric Correction Background Information Pages (all on this website):

1) About Atmospheric Scatter

2) Chavez (1988) Original Landsat TM Base of Histogram DOS Scatter Reflectance Method

3) Dark Object Examples

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RECOMMENDED Landsat 8 & Sentinel-2 Atmospheric Scatter Establishment in ArcGIS & QGIS

1) ArcGIS Users for Landsat 8: Lowest Valid Value or Frequency 50 Attribute Table Methods

2) ArcGIS Users for Sentinel-2: Frequency 50 Attribute Table Method 

3) QGIS (free software) Users for Landsat 8: Bin 5 Histogram Method

4) QGIS (free software) Users for Sentinel-2: QGIS Base of Histogram 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.