Pressure wave: Difference between revisions

Revision as of 14:54, 20 February 2012

pressure wave[edit | edit source]

A short-period oscillation of pressure such as that associated with the propagation of sound through the atmosphere; a type of longitudinal wave.

Pressure waves are usually recorded on sensitive microbarographs capable of measuring pressure changes of amounts down to 10^-4 mb. Typical values for the period and wavelength of pressure waves are ½ to 5 s and 100 to 1500 m, respectively. Pressure waves produced by explosions in the upper atmosphere are of value in determining the high-altitude temperatures and winds.
See sound wave, compression wave, microbarm.

Gutenberg, B. 1951. Compendium of Meteorology. 366–375.

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-<div class="definition"><div class="short_definition">A short-period [[oscillation]] of [[pressure]] such as that associated with the propagation  of [[sound]] through the [[atmosphere]]; a type of [[longitudinal wave]].</div><br/> <div class="paragraph">Pressure waves are usually recorded on sensitive [[microbarographs]] capable of measuring pressure  changes of amounts down to 10<sup>&minus;4</sup> mb. Typical values for the [[period]] and [[wavelength]] of pressure  waves are &frac12; to 5 s and 100 to 1500 m, respectively. Pressure waves produced by explosions in the  [[upper atmosphere]] are of value in determining the high-altitude temperatures and winds. <br/>''See''  [[sound wave]], [[compression wave]], [[microbarm]].</div><br/> </div><div class="reference">Gutenberg, B. 1951. Compendium of Meteorology. 366&ndash;375. </div><br/>
+<div class="definition"><div class="short_definition">A short-period [[oscillation]] of [[pressure]] such as that associated with the propagation  of [[sound]] through the [[atmosphere]]; a type of [[longitudinal wave]].</div><br/> <div class="paragraph">Pressure waves are usually recorded on sensitive [[microbarographs]] capable of measuring pressure  changes of amounts down to 10<sup>-4</sup> mb. Typical values for the [[period]] and [[wavelength]] of pressure  waves are &frac12; to 5 s and 100 to 1500 m, respectively. Pressure waves produced by explosions in the  [[upper atmosphere]] are of value in determining the high-altitude temperatures and winds. <br/>''See''  [[sound wave]], [[compression wave]], [[microbarm]].</div><br/> </div><div class="reference">Gutenberg, B. 1951. Compendium of Meteorology. 366&ndash;375. </div><br/>
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