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What is NDVI ndbi ndwi?

This curve will visualize the formula of NDVI, NDBI, NDWI. The Normalized Difference Vegetation Index (NDVI) is the most commonly used vegetation index for observe greenery globally. Other commonly used vegetation indices Enhanced Vegetation Index (EVI), Perpendicular Vegetation Index (PVI), Ration Vegetation Index (RVI).

What is NDVI and how is it used to measure vegetation?

When you apply the formula, bright green indicates high NDVI. Whereas red has low NDVI. So it’s quantifying vegetation by measuring the difference between near-infrared (which vegetation strongly reflects) and red light (which vegetation absorbs).

What is NDVI in remote sensing?

NDVI is the most common index that analysts use in remote sensing. But how do you calculate it? What do NDVI values represent? How do Earth scientists use NDVI?

What can you do with NDVI?

This list of 15 free satellite imagery data sources has data that you can download and create NDVI maps in ArcGIS or QGIS. For example, we use NDVI in agriculture, forestry, and the environment. Do you know any applications using NDVI?


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