ground-layer

ground layer

Dictionary.com Unabridged

surface boundary layer

noun Meteorology.
the thin layer of air adjacent to the earth's surface, usually considered to be less than 300 feet (91 meters) high.
Also called surface layer, atmospheric boundary layer, friction layer, ground layer.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
ground layer
 
n
See layer

Collins English Dictionary - Complete & Unabridged 10th Edition
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