Open AccessScattered Surface Waves from a Surface Obstacle
Author(s) -
Hudson J. A.
Publication year - 1967
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.1967.tb03143.x
Subject(s) - obstacle , scattering , surface (topology) , geology , surface wave , plane (geometry) , geometry , physics , optics , mathematics , geography , archaeology
Summary This paper is concerned with the interpretation of a surface wave arrival at the Eskdalemuir seismological array which is apparently generated by the scattering of the initial P wave. The theory of scattering of a plane wave by a surface obstacle is developed in order to apply to a three‐dimensional surface inclusion of any shape. Results are approximate, depending on the depth of the obstacle and the slope of all boundaries being small. Comparison of theory with data from four events leads to an estimate of the breadth of the scatterer. A studyof the relief in the area of the neighbourhood of the array strongly suggests that scattering is due to irregularities of surface topography.