Difference between revisions of "Dictionary:Apparent velocity"

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<b>1</b>. The phase velocity that a wavefront appears to have along a line of geophones. If the wavefront makes the angle &#x03B8; with the spread and the true velocity of the wavefront is ''V'', then the apparent velocity is ''V''/sin&#x03B8;. See Figure [[Dictionary:Fig_W-2|W-2]]. <b>2</b>. The inverse of the slope of a refraction time-distance curve.
 
<b>1</b>. The phase velocity that a wavefront appears to have along a line of geophones. If the wavefront makes the angle &#x03B8; with the spread and the true velocity of the wavefront is ''V'', then the apparent velocity is ''V''/sin&#x03B8;. See Figure [[Dictionary:Fig_W-2|W-2]]. <b>2</b>. The inverse of the slope of a refraction time-distance curve.
 
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Revision as of 12:58, 17 October 2016

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1. The phase velocity that a wavefront appears to have along a line of geophones. If the wavefront makes the angle θ with the spread and the true velocity of the wavefront is V, then the apparent velocity is V/sinθ. See Figure W-2. 2. The inverse of the slope of a refraction time-distance curve.