Updraft - Revision history

DavidB4-bot: /* top */HTTP --> HTTPS [#1], replaced: http://books.google.com → https://books.google.com

2018-09-26T21:13:42Z

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DavidB4-bot: clean up & uniformity

2016-07-12T07:21:49Z

clean up & uniformity

Michael4: added reference

2011-01-28T04:48:30Z

added reference

JacobB at 21:05, December 14, 2009

2009-12-14T21:05:15Z

MarkGall: revert plagiarism

2009-10-07T00:25:52Z

revert plagiarism

HeyThere at 00:18, October 7, 2009

2009-10-07T00:18:47Z

Mitch at 14:31, December 28, 2008

2008-12-28T14:31:25Z

GregLarson: und

2007-11-04T00:46:14Z

und

Aziraphale: categorize

2007-07-16T22:53:01Z

categorize

TK: Undo revision 74089 by Special:Contributions/RLee (User talk:RLee)

2007-03-30T02:16:50Z

Undo revision 74089 by Special:Contributions/RLee (User talk:RLee)

← Older revision		Revision as of 21:13, September 26, 2018
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−	An '''updraft''' is a current of rising [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> Updrafts can vary in speed, from a few feet per second to 6000 feet per minute.<ref>U.S. Department of Transportation, Federal Aviation Administration. ''Balloon Flying Handbook''; p. 4-25, (2008) [~~http~~://books.google.com/books?id=khgsAq5voHMC&lpg=SA4-PA25&dq=updraft%20balloons&pg=PR2#v=onepage&q=updraft&f=false]</ref>	+	An '''updraft''' is a current of rising [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> Updrafts can vary in speed, from a few feet per second to 6000 feet per minute.<ref>U.S. Department of Transportation, Federal Aviation Administration. ''Balloon Flying Handbook''; p. 4-25, (2008) [https://books.google.com/books?id=khgsAq5voHMC&lpg=SA4-PA25&dq=updraft%20balloons&pg=PR2#v=onepage&q=updraft&f=false]</ref>

	==References==		==References==

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-An '''updraft''' is a current of rising [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>. Updrafts can vary in speed, from a few feet per second to 6000 feet per minute.<ref>U.S. Department of Transportation, Federal Aviation Administration. ''Balloon Flying Handbook''; p. 4-25, (2008) [http://books.google.com/books?id=khgsAq5voHMC&lpg=SA4-PA25&dq=updraft%20balloons&pg=PR2#v=onepage&q=updraft&f=false]</ref>
+An '''updraft''' is a current of rising [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> Updrafts can vary in speed, from a few feet per second to 6000 feet per minute.<ref>U.S. Department of Transportation, Federal Aviation Administration. ''Balloon Flying Handbook''; p. 4-25, (2008) [http://books.google.com/books?id=khgsAq5voHMC&lpg=SA4-PA25&dq=updraft%20balloons&pg=PR2#v=onepage&q=updraft&f=false]</ref>
 ==References==
 <references/>
-[[category:meteorology]]
+[[Category:Meteorology]]

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-An '''updraft''' is a current of rising [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>
+An '''updraft''' is a current of rising [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>. Updrafts can vary in speed, from a few feet per second to 6000 feet per minute.<ref>U.S. Department of Transportation, Federal Aviation Administration. ''Balloon Flying Handbook''; p. 4-25, (2008) [http://books.google.com/books?id=khgsAq5voHMC&lpg=SA4-PA25&dq=updraft%20balloons&pg=PR2#v=onepage&q=updraft&f=false]</ref>
 ==References==
 <references/>
 [[category:meteorology]]

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 <references/>
-{{stub}}
 [[category:meteorology]]

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-An '''updraft''' or '''downdraft''' ('''air pocket''') is the vertical movement of [[air]] as a [[weather]] related phenomenon. Commonly, one of two forces causes the air to move. Localized regions of warm or cool air will exhibit vertical movement. A pocket of warm air will typically be less dense than the surrounding region, and so will rise until it reaches air that is either warmer or less dense than itself. The converse will occur for a mass of cool air, and is known as [[Subsidence (atmosphere)|subsidence]]. This movement of large volumes of air, especially when regions of hot, wet air rise, can create large clouds, and is the main cause of [[thunderstorms]]. Drafts can also be created by low or high pressure regions. A low pressure region will attract air from the surrounding area, which will move towards the center and then rise, creating an updraft. The reverse will naturally occur in a high pressure region, as air moves away from the high pressure center.
+An '''updraft''' is a current of rising [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>
-== Notable effects ==
+==References==
-Updrafts and downdrafts are some of the main causes of in-flight turbulence in planes, and are one reason airlines try to avoid regions of bad weather. Extreme cases, known as [[downburst]]s and [[microburst]]s are responsible for many airplane crashes. The crash of [[Delta Air Lines Flight 191]] on its final approach leg before landing in 1985 was presumably caused by a microburst, and prompted the [[Federal Aviation Administration]] to research and deploy new storm detection radar stations at some of the major airports.
+<references/>
-Downbursts can cause extensive localized damage, similar to that caused by [[tornado]]es.  Downburst damage can be differentiated from that of a tornado because the resulting destruction is circular and radiates away from the center.  Tornado damage radiates inward, towards the center of the damage.
+{{stub}}
 [[category:meteorology]]

← Older revision		Revision as of 00:46, November 4, 2007
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−	A current of rising air.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>	+	An '''updraft''' is a current of rising [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>

	==References==		==References==

← Older revision		Revision as of 22:53, July 16, 2007
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	==References==		==References==
	<references/>		<references/>
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		+	[[category:meteorology]]