From AMS Glossary
"One of a series of small ridges on a snow surface formed by the corrasive action of wind-blown snow.
"Erosion ridges may be formed either at right angles to the wind or aligned with the wind." (Glossary of Arctic and Subarctic Terms 1955.)
Arctic, Desert, Tropic Information Center (ADTIC) Research Studies Institute 1955. Glossary of Arctic and Subarctic Terms. ADTIC Pub. A-105, Maxwell AFB, AL.