Translations:Coherence - book/8/en

What distinguishes a reflection event? Coherence measures the degree of similarity among more than two signals. Coherence generally is used in a qualitative sense when we are picking seismic records by eye. Quantitative measures of coherence are used in automatic picking schemes. Seismic reflection events can be linearly coherent with respect to a straight-line seismic-record dip. Seismic reflection events can be hyperbolically coherent with respect to a normal-moveout curve.