nammalakes
The numbers behind the map

Insights

Satellite-derived metrics, raw observations, and data-quality checks for every Bengaluru lake we track.

Satellite data:Copernicus Sentinel-2 L2A via Google Earth Engine. 10m resolution, roughly 5-day revisit. Cloud-masked using SCL band (>30% rejected).

EMPRI data:Environmental Management & Policy Research Institute, 2018 field survey. One-time snapshot.

KSPCB data: Karnataka State Pollution Control Board lab measurements. Frequency varies by lake.

Lake boundaries: CSEI-ATREE, Centre for Social and Environmental Innovation. CC BY-SA 4.0.