Propagation of the seismic wave Propagation of the seismic wave
Propagation of the seismic wave Propagation of the seismic wave
Propagation of the seismic wave Propagation of the seismic wave
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- Intrinsic attenuation: loss <strong>of</strong> amplitude taken place due to dissipation <strong>of</strong><br />
energy into heat by friction<br />
Io<br />
e -œr<br />
Distance<br />
Note:<br />
Higher frequencies attenuate over shorter distances due to <strong>the</strong>ir shorter <strong>wave</strong>lengths.<br />
Therefore, high frequencies decay first leaving a low frequency signal remaining.<br />
2- Reflection:<br />
It is take place when a <strong>seismic</strong> <strong>wave</strong> hits an interface separating two media <strong>of</strong><br />
different elastic Properties (or different acoustic impedance, z)<br />
Acoustic impedance: define as <strong>the</strong> product <strong>of</strong> velocity with density<br />
Z = p * V
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