Astronomy: General

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boundary layer

A Dictionary of Earth Sciences | 1999 | | Copyright

boundary layer
1. At the interface between a solid surface and a fluid, a thin fluid layer that is static because of friction between molecules of the fluid and the solid.

2. General term used to describe the atmospheric layer up to about 100 m above the ground surface, where the air flow is largely conditioned by the frictional effects of the surface. Mean velocities in the boundary layer are typically less than the free-stream values. See also PLANETARY BOUNDARY LAYER.

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AILSA ALLABY and MICHAEL ALLABY. "boundary layer." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "boundary layer." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-boundarylayer.html

AILSA ALLABY and MICHAEL ALLABY. "boundary layer." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-boundarylayer.html

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boundary layer

A Dictionary of Astronomy | 1997 | Copyright

boundary layer In a planetary atmosphere, the level of the atmosphere in direct contact with the planet's surface, in which friction between the surface and the air plays a significant role in determining atmospheric movements. On Earth, the boundary layer lies at the base of the troposphere and varies in depth from a few hundred metres under stable conditions to 1–2 km when convection is strong.

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"boundary layer." A Dictionary of Astronomy. 1997. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"boundary layer." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O80-boundarylayer.html

"boundary layer." A Dictionary of Astronomy. 1997. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-boundarylayer.html

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boundary layer

A Dictionary of Ecology | 2004 | | Copyright

boundary layer The atmospheric layer up to about 100 m above the ground surface, where the air flow is largely conditioned by the frictional effects of the surface. Mean velocities in the boundary layer are typically less than the free-stream values.

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MICHAEL ALLABY. "boundary layer." A Dictionary of Ecology. 2004. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "boundary layer." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O14-boundarylayer.html

MICHAEL ALLABY. "boundary layer." A Dictionary of Ecology. 2004. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-boundarylayer.html

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Free newspaper and magazine articles

	BOUNDARY LAYER CODES.(now available on the Internet)(Brief Article) Magazine article from: Mechanical Engineering-CIME; 12/1/2000
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