Source estimation from broadband regional seismograms

Abstract

Recently developed source inversion techniques do not take full advantage of the broadband nature of regional seismograms. The reason is that Green's functions generated from flat-layered models are not correct for the complicated propagational phenomena associated with realistic crustal structure. The inversion is usually performed by removing short periods and inverting only selected portions of the records. This article, introduces a source estimation technique that allows for better use of the entire broadband record when only imperfect Green's functions are available. -from Authors