Ground-Based Observations of Terrestrial Gamma Ray Flashes Associated with Downward-Directed Lightning Leaders

John Belz1, Rasha Abbasi2, Paul R Krehbiel3, Ryan LeVon1, Jackson Remington4, William Rison5 and Ronald J Thomas5, (1)University of Utah, Physics Department, Salt Lake City, UT, United States, (2)University of Utah, Physics Department, Salt Lake City, United States, (3)New Mexico Tech, Socorro, United States, (4)University of Utah, Physics, Salt Lake City, UT, United States, (5)New Mexico Inst Mining & Tech, Socorro, United States