Exploring Earth's boundaries with Donald V.Helmberger

• 作者: Voon Hui Lai
• 来源期刊: 地震学报（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: Special Memorial Issue for Donald Vincent Helmberger
• 页码范围: 63-66
• 页数: 4页
• 语种: 英文

摘要

Seismic waveform modeling is one of the most powerful tools for understanding Earth's structure,since it allows waveforms to be quantitatively predicted using physical source representations and a velocity model.In the late 1960s,Don Helmberger developed the foundations of generalized ray theory(GRT)using the Cagniard-de Hoop method(Helmberger,1968).This advance ushered in a new era of computing synthetic seismograms at local to teleseismic distances in applications ranging from studying strong motions generated by earthquakes to modeling Earth's interiors from basin to core.Over the