Yamuna Flood Mapper

Sentinel-1 SAR change detection · Delhi corridor
77.04–77.39°E, 28.42–28.74°N

Flood event

Inundation

—new flood km²

—permanent water km²

—flood polygons

—people exposed

Passes used

Layers

Flood extent (new inundation) Permanent water

new flood water

permanent water (dry season)

Data & method

Copernicus Sentinel-1 RTC gamma-0 via Microsoft Planetary Computer. VH backscatter, same-orbit dB change vs Feb–Mar baseline, Otsu-thresholded + darkness cap. Population: Meta HRSL population. Not an official warning product.

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