Urban Atlas Nepal

Methodology

Urban Atlas Nepal structures existing research and government data into a single, ward-level risk format for Kathmandu Valley's 247 wards.

Current data sources

  • Earthquake risk — derived from JICA's Earthquake Disaster Risk Assessment for Kathmandu Valley (2018), a government-commissioned study covering peak ground acceleration, seismic intensity, and liquefaction susceptibility.

  • Flood risk — DEM-derived flood hazard modeling.

  • Air quality — live monitoring data via the World Air Quality Index (WAQI) network, refreshed every 30 minutes.

  • Ward boundaries — official administrative boundaries covering Kathmandu, Lalitpur, and Bhaktapur districts.

A note on confidence

Data confidence varies by ward and by hazard type. Some wards draw on detailed, recent assessments; others rely on broader regional estimates interpolated to ward level. We're working toward surfacing this confidence transparently for each ward and layer, rather than presenting all data as equally certain.

This is v1 of the atlas. As better local data becomes available — through municipal partnerships, new surveys, or research collaborations — individual wards and layers will be updated and the confidence behind them will improve.

Have better data for a specific ward or hazard layer? Partner with us →