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Kolyma's Annual Purge (cropped)

Kolyma's Annual Purge (cropped)

Norman Kuring/NASA's Ocean Color Web, NASA

For about eight months of the year, the Kolyma River is frozen to depths of several meters. But every June, the river thaws and carries vast amounts of suspended sediment and organic material into the Arctic Ocean. That surge of fresh, soil-ridden waters colors the Kolyma Gulf (Kolymskiy Zaliv) dark brown and black.

Credit
NASA / USGS Landsat
Licence
Public domain
Original
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