City Science

Interactive Map — Data Pathways

Use the layers and popups to explore urban indicators derived from Earth observation data.

Composite index
Computation: weighted mean of indicators, normalized with the hyperbolic tangent (tanh). Weights — heat: 3, air: 2.2, UV: 2.5, comfort: 1.2. Higher values → greener markers (better urban health).
Recommendations for urban planners
  • Prioritize urban greening in areas with high heat index.
  • Integrate NASA time series (Landsat/MODIS) for continuous monitoring.
  • Plan green corridors, shade infrastructure and permeable surfaces to reduce urban heat islands and UV exposure.

Local data: preloaded regions (JSON). Synthetic example data for hackathon purposes.