You searched for: “friction layer
atmospheric boundary layer (s) (noun), surface boundary layer, surface layer, friction layer, ground layer; atmospheric boundary layers (pl)
1. In the earth's atmosphere, the planetary boundary layer is the air layer near the ground affected by diurnal heat, moisture, or momentum transfer to or from the surface.
2. The thin layer of air adjacent to the earth's surface, usually considered to be less than 300 feet (91 meters) high.
3. The thin layer of air adjacent to the earth's surface, extending up to the so-called anemometer level (the base of the Ekman layer [thin top layer of the sea]); within this layer the wind distribution is determined largely by the vertical temperature gradient and the nature and contours of the underlying surface, and shearing stresses are approximately constant.
This entry is located in the following units: atmo-, atm- + (page 2) sphero-, spher-, -sphere- (page 2)
friction layer
The thin layer of the atmosphere adjacent to the earth's surface.
This entry is located in the following unit: frica-, frict-, -frice + (page 1)