A new global model for P wave speed variations in Earth's mantle

• Published in: Geochemistry, geophysics, geosystems : G3 Vol. 9; no. 5; pp. np - n/a
• Main Authors: Li, Chang, van der Hilst, Robert D., Engdahl, E. Robert, Burdick, Scott
• Format: Journal Article
• Language: English
• Published: Blackwell Publishing Ltd 01.05.2008
• Subjects: mantle; P wave speed; seismic tomography; traveltimes; Asia; ANE, Atlantic, Iceland; USA, Hawaii

We document our tomographic method and present a new global model of three‐dimensional (3‐D) variations in mantle P wave velocity. The model is parameterized by means of rectangular cells in latitude, longitude, and radius, the size of which adapts to sampling density by short‐period (1 Hz) data. Th...