Sunday, May 22nd, 2005
Sastrugi

Unlike sand dunes, sastrugi’s ridges are often aligned parallel to the wind. They are a very common feature out here along the Bering Sea Coast, where wind, snow and cold form a formidable alliance.

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Saturday, May 21st, 2005
Sastrugi

I came across these dune-like ridges of hard-crusted snow on my daily ski on the sea ice. These patterns form wherever the air is frigid and strong winds blows snow over a relatively flat surface. These sastrugi may look permanent, but they are constantly reshaped by the wind.

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