Is there a thundercloud electric field threshold for terrestrial gamma-ray flash production?
David Miles Smith, University of California, Department of Physics and Santa Cruz Institute for Particle Physics, Santa Cruz, United States, Gregory S Bowers, Los Alamos National Laboratory, Los Alamos, NM, United States, Masashi Kamogawa, Tokyo Gakugei Univ, Tokyo, Japan, Daohong Wang, Gifu University, Gifu, Japan, Joseph Dwyer, University of New Hampshire, Department of Physics and Space Science Center, Durham, United States and J Eric Grove, Naval Research Lab DC, Washington, United States
