Greg Riggs
Graduate Research Assistant
Categorized As
Research Area: Plasma and Space Physics,
Plasma & Space Physics
Greg works with Professor Weichao Tu to better understand the interplay of energetic particles and ultra-low frequency (ULF) waves in the outer radiation belt. To these ends, he has developed an efficient code to analyze magnetometer data from the THEMIS and Arase missions, from which the ULF wave power dependence on magnetic local time (MLT), magnetic latitude (MLat), radial location (L shell), geomagnetic activity index Kp, and frequency may be modeled. By utilizing these models in test particle codes, pitch-angle dependent radial diffusion coefficients will be derived and incorporated into future simulations of the magnetosphere.
In the past, Greg's work identified and characterized nonlinear interactions in magnetically-confined fusion experiments using a novel, time-resolved bispectral analysis. Broadly speaking, his research interests include nonlinear wave-wave and wave-particle interactions, higher-order spectral analysis, and the interrelationship between space and laboratory plasmas.
In the past, Greg's work identified and characterized nonlinear interactions in magnetically-confined fusion experiments using a novel, time-resolved bispectral analysis. Broadly speaking, his research interests include nonlinear wave-wave and wave-particle interactions, higher-order spectral analysis, and the interrelationship between space and laboratory plasmas.
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