Open AccessInversion of a refraction wavefield by imaging in the p‐x and v‐z planes
Author(s) -
McMedian George A.
Publication year - 1984
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1984.tb05067.x
Subject(s) - slowness , inversion (geology) , refraction , geology , plane (geometry) , seismic refraction , seismology , geodesy , geometry , optics , mathematics , physics , tectonics
Summary. The slowness‐distance ( p, x ) plane is an alternative to the slowness‐time intercept ( p, τ ) plane as the intermediate image space in inversion of seismic refraction data. The production of a ( p, x ) image from travel time‐distance ( T, x ) data has been presented elsewhere so emphasis here is on ( p, x ) to velocity‐depth ( v, z ) transformation. Iterative downward continuation of a ( p, x ) image converges to the correct ( v, z ) image in a manner similar to that in the widely used ( p, τ ) to ( v, z ) process. Application to a real refraction data set from the Imperial Valley of southern California gives a similar ( v, z ) solution via both ( p, x ) and ( p, τ ) images.