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NDVI Map in ArcGIS Pro | How to Calculate NDVI using ArcGIS Pro

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NDVI, which stands for Normalized Difference Vegetation Index, is a numerical indicator that assesses the health and density of vegetation based on satellite data. It's calculated using the difference between nearinfrared (NIR) and red light reflectance. High NDVI values suggest healthy vegetation, while low values indicate bare soil or nonvegetated surfaces.

In ArcGIS Pro, you can calculate NDVI using the following steps:
Import Satellite Imagery:
Load the satellite imagery with bands representing red and nearinfrared (NIR) into ArcGIS.

Access the Raster Calculator:
Open the "Raster Calculator" tool in ArcGIS Pro. You can find it in the "Spatial Analyst" toolbox.

Input NDVI Formula:
Enter the NDVI formula in the Raster Calculator expression:
(Float("NIR_band") Float("Red_band")) / (Float("NIR_band") + Float("Red_band"))
Replace "NIR_band" and "Red_band" with the actual names of the NIR and red bands in your dataset.

Set Output Parameters:
Specify the output raster name, location, and data type. Ensure the output format supports floatingpoint values.

Run the Raster Calculator:
Run/Execute the Raster Calculator to generate the NDVI raster.

Visualize Results:
Load the resulting NDVI raster into the map. Use a color ramp that highlights variations in vegetation health.
ArcGIS Pro provides a userfriendly environment for processing and visualizing remote sensing data. Make sure you have the Spatial Analyst extension enabled to access tools like the Raster Calculator.

posted by villigata8p