topic Problems calculating NDVI from Landsat in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/problems-calculating-ndvi-from-landsat/m-p/455766#M15319 <HTML><HEAD></HEAD><BODY><P>I am working on a multiyear vegetation monitoring project in Kenya and was asked to calculate the NDVI. I have processed 8 years of Landsat data but for some reason, the NDVI formula using these two rasters generates a bizarre range and very odd values. I am failing to understand what is special here, would you be able to figure it out?</P><P>The zip file contains the Red Band (3) and NIR (4) bands, reflectance and sun elevation corrected. NDVI1.zip is the result I get by using the standard formula: (NIR-Red)/(NIR+Red)</P><P></P><P>Let me know what you think.</P></BODY></HTML> Tue, 25 Jun 2019 21:58:01 GMT EduardoMachicado 2019-06-25T21:58:01Z Problems calculating NDVI from Landsat https://community.esri.com/t5/geoprocessing-questions/problems-calculating-ndvi-from-landsat/m-p/455766#M15319 <HTML><HEAD></HEAD><BODY><P>I am working on a multiyear vegetation monitoring project in Kenya and was asked to calculate the NDVI. I have processed 8 years of Landsat data but for some reason, the NDVI formula using these two rasters generates a bizarre range and very odd values. I am failing to understand what is special here, would you be able to figure it out?</P><P>The zip file contains the Red Band (3) and NIR (4) bands, reflectance and sun elevation corrected. NDVI1.zip is the result I get by using the standard formula: (NIR-Red)/(NIR+Red)</P><P></P><P>Let me know what you think.</P></BODY></HTML> Tue, 25 Jun 2019 21:58:01 GMT https://community.esri.com/t5/geoprocessing-questions/problems-calculating-ndvi-from-landsat/m-p/455766#M15319 EduardoMachicado 2019-06-25T21:58:01Z