100 US Cities — Heat & Greenness Disparity

Interactive map of 100 US metropolitan areas showing block-group-level land-surface temperature (LST), NDVI (vegetation greenness), and disparity residuals — how much greener or hotter each block group is than its income would predict.

Click a city to zoom in and see the block-group disparity choropleth.

Data sources

• LST: Landsat 8/9 thermal imagery
• NDVI: Landsat 8/9 surface reflectance
• Block-group boundaries: 2020 US Census (NHGIS)
• City boundaries: 100-cities shapefile (dissolved block segments)