Normalized Satellite Indexes
| Index | Name | Definition (pre-Landsat 8) | Landsat 8 | Sentinel-2 | Results | Reference |
| NDWI | Normalized Difference Water Index |
Water will be white (large values); shows coastlines well. |
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| NDVI | Normalized Difference Vegetation Index | Vegetation will be white. Red is 0.63 to 0.69, and NIR is 0.76 to 0.90. | ||||
| GDVI | Generalized Difference Vegetation Index | (NIR-Green)/(NIR+Green) | Wu, W. The Generalized Difference Vegetation Index (GDVI) for Dryland Characterization. Remote Sens. 2014, 6, 1211-1233. https://doi.org/10.3390/rs6021211 . | |||
| NDSI | Normalized Difference Snow Index | (TM2-TM5) / (TM2+TM5) | (TM3-TM6) / (TM3+TM6) | (B03 - B11) / (B03 + B11) | Dozier, 1989, Remote Sensing Environment | |
| NDSI | Normalized Difference Soil Index | (TM5-TM4) / (TM5+TM4) | (TM6-TM5) / (TM5+TM6) | (B11 - B08) / (B08 + B11) | ||
| NDMI | Normalized Difference Moisture Index | (B04 - B05) / (B04 + B05) | (B05 - B06) / (B05 + B06) | (B08 - B11) / (B08 + B11) |
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| NDCI | Normalized Difference chlorophyll index | (band 5 - band 4) / (Band 5 + Band 4) | (708-655)/*708+665) | Mishra and Mishra, Remote Sens. Environ., 117 (2012), pp.394-406 | ||
| NBR | Normalized Burn Ratio | Needs a longer wavelength SWIR band not included with 4 band sensors. | ||||
| VARI | Visible Atmospherically Resistant Index | (green-red)/ (green+red-blue) | Gitelson and others, 2002 |
Compute indexes on Imagery analysis menu for satellite imagery Create difference index, band ratio, new band menu option. These are all ratios, and require two bands, except for the VARI which uses three.
Values are stored as floating point.
USGS on Landsat Surface Reflectance-Derived Spectral Indices
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https://www.usgs.gov/faqs/ |
References:
Last revision 3/9/2023