LEC_26_Remotely+Sensed+Data+in+GIS+4 (2).pdf - Outline Remotely sensed data in GIS 4 Santosh Rijal Department of Geography Virginia Tech 1 Vegetation

LEC_26_Remotely+Sensed+Data+in+GIS+4 (2).pdf - Outline...

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Outline Remotely sensed data in GIS 4 1 Santosh Rijal Department of Geography Virginia Tech
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Vegetation Indices Normalized Difference Vegetation Index (NDVI) is the most well-known and most frequently used index. NDVI = (NIR-RED)/(NIR+RED) Theoretical range: -1 to 1 High values indicate denser vegetation NDVI provides a coarse estimate of vegetation health and allows for the monitoring of vegetation changes over time. 2
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