Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder

Trevor Leonard

Current Research

I am a research scientist in the Solar and Terrestrial Physics group in NOAA's National Centers for Environmental Information at CIRES. My focus is the calibration, validation, and development of scientific algorithms for the measurement of magnetospheric electrons and protons by the Low energy Magnetospheric Particle Sensor (MPS-LO) in the Space Environment In-Situ Suite (SEISS) on the NOAA GOES-R line of spacecraft. 

View Publications

  • Chepuri SNF; Jaynes AN; Baker DN; Mauk BH; Cohen IJ; Leonard T; Turner DL; Blake JB; Fennel JF; Phan TD. (Jun 2022). A Statistical Study of Magnetopause Boundary Layer Energetic Electron Enhancements Using MMS. Frontiers in Astronomy and Space Sciences , 9. 10.3389/fspas.2022.926660
  • Lentz CL; Baker DN; Andersson L; Thaller S; Fowler CM; Leonard TW. (Feb 2021). The Effects of Different Drivers on the Induced Martian Magnetosphere Boundary: A Case Study of September 2017. Journal of Geophysical Research: Space Physics , 126(2). 10.1029/2020JA028105
  • Turner DL; Cohen IJ; Bingham ST; Stephens GK; Sitnov MI; Mauk BH; Denton RE; Leonard TW; Fennell JF; Blake JB. (Jan 2021). Characteristics of Energetic Electrons Near Active Magnetotail Reconnection Sites: Tracers of a Complex Magnetic Topology and Evidence of Localized Acceleration. Geophysical Research Letters , 48(2). 10.1029/2020GL090089
  • Cohen IJ; Mauk BH; Turner DL; Fennell JF; Blake JB; Reeves GD; Leonard TW; Baker DN; Jaynes AN; Spence HE. (Mar 2019). Drift-Dispersed Flux Dropouts of Energetic Electrons Observed in Earth's Middle Magnetosphere by the Magnetospheric Multiscale (MMS) Mission. Geophysical Research Letters , 46(6), 3069-3078. 10.1029/2019GL082008
  • Usanova ME; Ahmadi N; Malaspina DM; Ergun RE; Trattner KJ; Reece Q; Leonard T; Fuselier SA; Torbert RB; Russell CT. (Sep 2018). MMS Observations of Harmonic Electromagnetic Ion Cyclotron Waves. Geophysical Research Letters , 45(17), 8764-8772. 10.1029/2018GL079006
  • Ergun RE; Goodrich KA; Wilder FD; Ahmadi N; Holmes JC; Eriksson S; Stawarz JE; Nakamura R; Genestreti KJ; Hesse M. (Apr 2018). c Magnetic Reconnection, Turbulence, and Particle Acceleration: Observations in the Earth's Magnetotail. Geophysical Research Letters , 45(8), 3338-3347. 10.1002/2018GL076993
  • Le Contel O; Nakamura R; Breuillard H; Argall MR; Graham DB; Fischer D; Retino A; Berthomier M; Pottelette R; Mirioni L. (Dec 2017). Lower Hybrid Drift Waves and Electromagnetic Electron Space-Phase Holes Associated With Dipolarization Fronts and Field-Aligned Currents Observed by the Magnetospheric Multiscale Mission During a Substorm. Journal of Geophysical Research: Space Physics , 122(12), 12236-12257. 10.1002/2017JA024550
  • Zhao, H, DN Baker, S Califf, X Li, AN Jaynes, T Leonard, SG Kanekal, JB Blake, JF Fennell, SG Claudepierre, DL Turner, GD Reeves and HE Spence. (Dec 2017). Van Allen Probes Measurements of Energetic Particle Deep Penetration Into the Low L Region (L < 4) During the Storm on 8 April 2016. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , 122(12). 10.1002/2017JA024558
  • Turner DL; Lee JH; Claudepierre SG; Fennell JF; Blake JB; Jaynes AN; Leonard T; Wilder FD; Ergun RE; Baker DN. (Nov 2017). Examining Coherency Scales, Substructure, and Propagation of Whistler Mode Chorus Elements With Magnetospheric Multiscale (MMS). Journal of Geophysical Research: Space Physics , 122(11), 11201-11226. 10.1002/2017JA024474
  • Turner DL; Fennell JF; Blake JB; Claudepierre SG; Clemmons JH; Jaynes AN; Leonard T; Baker DN; Cohen IJ; Gkioulidou M. (Nov 2017). Multipoint Observations of Energetic Particle Injections and Substorm Activity During a Conjunction Between Magnetospheric Multiscale (MMS) and Van Allen Probes. Journal of Geophysical Research: Space Physics , 122(11), 11481-11504. 10.1002/2017JA024554
  • Cohen IJ; Mauk BH; Anderson BJ; Westlake JH; Sibeck DG; Turner DL; Fennell JF; Blake JB; Jaynes AN; Leonard TW. (Sep 2017). Statistical analysis of MMS observations of energetic electron escape observed at/beyond the dayside magnetopause. Journal of Geophysical Research: Space Physics , 122(9), 9440-9463. 10.1002/2017JA024401
  • Cohen IJ; Mitchell DG; Kistler LM; Mauk BH; Anderson BJ; Westlake JH; Ohtani S; Hamilton DC; Turner DL; Blake JB. (Sep 2017). Dominance of high-energy (> 150keV) heavy ion intensities in Earth's middle to outer magnetosphere. Journal of Geophysical Research: Space Physics , 122(9), 9282-9293. 10.1002/2017JA024351
  • Wilder FD; Ergun RE; Newman DL; Goodrich KA; Trattner KJ; Goldman MV; Eriksson S; Jaynes AN; Leonard T; Malaspina DM. (May 2017). The nonlinear behavior of whistler waves at the reconnecting dayside magnetopause as observed by the Magnetospheric Multiscale mission: A case study. Journal of Geophysical Research: Space Physics , 122(5), 5487-5501. 10.1002/2017JA024062