Calculating NDVI from Landsat Imagery Using EarthExplorer and QGIS

NDVI is a widely used remote sensing metric that quantifies vegetation health and density by analyzing the difference between near-infrared (NIR) and red visible light reflected by vegetation. Landsat 8 and 9 satellite imagery provides high-quality data with 30-meter spatial resolution, covering red and near-infrared (NIR) bands essential for NDVI calculations. Managed by the U.S. Geological Survey, Earth Explorer offers access to all Landsat data. It provides various filtering options for time, location, cloud cover, and more. Landsat data must be loaded into a GIS application for calculation of NDVI from satellite imagery. This video shows how to calculate NDVI from Landsat Imagery Using EarthExplorer and the QGIS app