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In this short note I presented a methodology to estimate 3-D reflector dip from
seismic traces with arbitrary geometry. While the resultant dip estimates are
imperfect, I show that they nontheless represent a significant improvement over
a zero dip assuption in the desired application: inverse interpolation.
I foresee this method as having some value as a first-order starting guess for
nonlinear implementations of Claerbout's ``two-stage'' inverse interpolation
method Claerbout (1999), as tested by Curry and Brown (2001). Significant
improvements are likely possible, particularly in the method for estimating the
initial reflector dip between two arbitrary traces.

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** Up:** Brown: Irregular data dip
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Stanford Exploration Project

10/14/2003