I am a Research Geophysicist in the Geomagnetism Program of the U.S. Geological Survey (USGS). My research has encompassed a variety of subjects related to the Earth’s magnetic field.
These days, I work in collaboration with colleagues on three subjects: 1. Using geomagnetic monitoring data and magnetotelluric survey data to evaluate geoelectric hazards of concern to the electric-power grid industry. 2. Statistical analysis of the rare occurrences of extremely intense magnetic storms. 3. Analysis of historical records of past space-weather events and their impacts.
Research theme: Geomagnetic Hazards
Magnetic storms; Solar-terrestrial interaction; Magnetotellurics; Induced geoelectric fields; Space climatology; Geophysical monitoring; Rare, extreme, historical geophysical events; Earthquake prediction; Hypothesis testing; Time series analysis; Statistical analysis
USGS, Golden, CO, Research Geophysicist, Advisor for Geomagnetic Research, 2006 - Present
Institut de Physique du Globe de Paris, Universite Paris Diderot, France, Visiting Professor, September 2015
Institut de Physique du Globe de Paris, Universite Paris Diderot, France, Visiting Research Scientist, October 2012
USGS, Golden, CO, Supervisory Research Geophysicist, Geomagnetism Group Leader, 20
Education and Certifications
Harvard University, Geophysics, Ph.D. 1993
University of California, Berkeley, Physics and Applied Mathematics, A.B. 1985
Affiliations and Memberships*
Space Weather Operations Response and Mitigation (SWORM) of the National Science and Technology Council, 2015 - Present
Electromagnetic Pulse Research and Development (EMPRAD) of the National Science
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government