Ganges Delta: Gorgeous, Wild and Deadly

This Envisat image highlights the Ganges Delta, the world’s largest delta, in the south Asia area of Bangladesh (visible) and India. This image was created by combining three Envisat Advanced Synthetic Aperture Radar acquisitions taken over the same area. The colours in the image result from variations in the surface that occurred between acquisitions.

(Image credit: ESA)

Satellites have captured a snapshot of the Ganges delta, the world’s largest river delta and one of the most geographically turbulent spots in the world.

The interweaving network of streams that make up the Ganges Delta in South Asia is formed by the joining of three rivers – the Padma, Jamuna, and Meghna rivers. More than 100 million people (mostly Bangladeshi) call the delta home, relying mostly on rice, tea and other crops for subsistence. The region is also inhabited by around 1,000 endangered Bengal tigers.

Since the turn of the century, the delta has become ground zero for a host of devastating natural disasters. In 1970, the region was ravaged by the Bhola cyclone — one of the deadliest on record, with a death toll estimated at between 500,000 and 1 million people. In 1991, the Bangladesh cyclone killed an estimated 138,000 people. Just seven years later, the Ganges flooded the delta, leaving more than 30 million people homeless and wiping out rice crops and threatening the entire nation’s food supply.

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