This research deals with the earth's inner core. Many properties of the earth's inner core are not well determined, with seismic studies often giving ambiguous or contradictory results. Some of these features include inner core density and Q structure, and the recent suggestions of heterogeneity and/or anisotropy. For all of these properties, there are discrepancies between models obtained from body wave studies and those from normal modes. This research will address these issues by systematically examining a variety of data sets which constrain inner core structure, including ISC travel times, GDSN waveforms, and normal modes. The aim is to find the simplest inner core models consistent with the data, and estimate the resolution associated with these models. This research has direct application to models of the structure and convection of the earth's core and secondary effects such as the variability of the earth's magnetic field.

Agency
National Science Foundation (NSF)
Institute
Division of Earth Sciences (EAR)
Type
Standard Grant (Standard)
Application #
8915821
Program Officer
Michael A. Mayhew
Project Start
Project End
Budget Start
1990-02-01
Budget End
1991-01-31
Support Year
Fiscal Year
1989
Total Cost
$88,632
Indirect Cost
Name
University of California-San Diego Scripps Inst of Oceanography
Department
Type
DUNS #
City
La Jolla
State
CA
Country
United States
Zip Code
92093