Create Urban Density Index using Spectral Indices and Convolution in Google Earth Engine
Do you want to map how urban your project area is? This video will tell you exactly how to achieve that using the urban density index.
Script: https://code.earthengine.google.com/8...
So I am using Landsat 9 surface reflectance cloud-less yearly median composite in year 2023 for the base data. After that, I will generate NDBI (Normalized Difference Built-up Index) and NBR2 (Normalized Burn Ratio 2) to help mask the built-up area. The built-up area is generated using a relational operation threshold using NBDI and NBR2. Finally, to generate urban density, I will apply focal or convolution operation for 3 neighborhood pixels to calculate the mean value. The result is the urban density index.
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