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Wind is the roughly horizontal movement of air (as opposed to an air current) caused by uneven heating of the Earth's surface. It occurs at all scales, from local breezes generated by heating of land surfaces and lasting tens of minutes to global winds resulting from solar heating of the Earth. The two major influences on the atmospheric circulation are the differential heating between the equator and the poles, and the rotation of the planet (Coriolis effect).
Given a difference in barometric pressure between two air masses, a wind will arise between the two which tends to flow from the area of high pressure area of low pressure until the two air masses are at the same pressure, although these flows will be modified by the Coriolis effect in the extratropics.
Winds can be classified either by their scale, the kinds of forces which cause them (according to the atmospheric equations of motion), or the geographic regions in which they exist. There are global winds, such as the wind belts which exist between the atmospheric circulation cells. There are upper-level winds, such as the jet streams. There are synoptic-scale winds that result from pressure differences in surface air masses in the middle latitudes, and there are winds that come about as a consequence of geographic features such as the sea breeze. Mesoscale winds are those which act on a local scale, such as gust fronts. At the smallest scale are the microscale winds which blow on a scale of only tens to hundreds of metres and are essentially unpredictable, such as dust devils and microbursts.
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PH: A Few Clouds and 24 F at Plattsburgh International Airport, NY Winds are Calm. The pressure is 1023.7 mb and the hu http://s1z.us/mw.htm
Plattsburgh_WX (Plattsburgh Weather) Sat, 07 Nov 2009 12:40:03 -0000
PH: A Few Clouds and 24 F at Plattsburgh International Airport, NY Winds are Calm. The pressure is 1023.7 mb and the hu http://s1z.us/mw.htm
MO: Fair and 46 F at Mankato Automatic Weather Observing / Reporting, MN Winds are Northwest at 8.1 MPH (7 KT). The hum http://s1z.us/mt.htm
Mankato_Weather (Mankato Weather) Sat, 07 Nov 2009 12:40:02 -0000
MO: Fair and 46 F at Mankato Automatic Weather Observing / Reporting, MN Winds are Northwest at 8.1 MPH (7 KT). The hum http://s1z.us/mt.htm
Pine Bush, NY Weather data Time 04:00 , Temp 27.5, Hum 46 ,Winds 0.0, Direction SE #wdisplay
Onesty (Patrick Onesty) Sat, 07 Nov 2009 09:06:18 -0000
Pine Bush, NY Weather data Time 04:00 , Temp 27.5, Hum 46 ,Winds 0.0, Direction SE #wdisplay
SN: Rain and 78 F at St Thomas-Charlotte Amalie/CyrilE King Int Airport, VI Winds are Calm. The pressure is 1011.8 mb a http://s1z.us/ex.htm
StTomStJonAlert (St Thomas St John VI) Sat, 07 Nov 2009 08:16:50 -0000
SN: Rain and 78 F at St Thomas-Charlotte Amalie/CyrilE King Int Airport, VI Winds are Calm. The pressure is 1011.8 mb a http://s1z.us/ex.htm
HD: A Few Clouds and 36 F at New York/John F. Kennedy Intl Airport, NY Winds are Calm. The pressure is 1026.8 mb and th http://s1z.us/if.htm
Hempstead_WX (Hempstead Weather) Sat, 07 Nov 2009 08:16:49 -0000
HD: A Few Clouds and 36 F at New York/John F. Kennedy Intl Airport, NY Winds are Calm. The pressure is 1026.8 mb and th http://s1z.us/if.htm
HG: A Few Clouds and 28 F at Harrisburg, Capital City Airport, PA Winds are Calm. The pressure is 1027.2 mb and the hum http://s1z.us/dh.htm
Harrisburg_WX (Harrisburg Weather) Sat, 07 Nov 2009 08:16:48 -0000
HG: A Few Clouds and 28 F at Harrisburg, Capital City Airport, PA Winds are Calm. The pressure is 1027.2 mb and the hum http://s1z.us/dh.htm
A Physical Approach to Playing the Trumpet - This book teaches how to use the body's reflexes to enhance trumpet performance.
Meta Description: [ The ideal trumpet method book for high school, collegiate and advanced trumpet students and teachers. A unique new trumpet method book that reflects the author's 40 years as an educator. Trumpet. ]
Be A Fifer! - Tutorial Book with audio CD, and information on the Model F Fife, tune books, fife racks, and cases.
Meta Description: [ Music Book and CD used to learn to play the fife. 75 lessons keyed to tracks on an audio CD. Model F Fifes ]
Horn Place - Books, CDs, videos and software for saxophone, flute, trombone, and trumpet.
Meta Description: [ Horn Place - Books, CD's, Videos, DVD's, Software for Brass and Reeds ]
Learn2pipe.com - Online bagpipe instruction with audio samples, exercises and music as well as staff notation and theory.
Nine-Note Recorder Method - A book and CD that can help to teach children to read music and play the recorder. Duets and trios for classroom instruction.
Two Measures at a Time - Offering some instructional programs to learn how to play the Dizi (Chinese Bamboo Flute).
Meta Description: [ Two Measures at a Time has a music instruction program to teach you how to play the Dizi (Chinese Bamboo Flute) like a master. ]
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