Characteristics of the Pulse Luminosity in the Initial Breakdown Stage of Cloud-to-Ground and Intracloud Lightning

Robert A Wilkes1, Martin A Uman2, John Turk Pilkey3 and Douglas Jordan1, (1)University of Florida, Ft Walton Beach, FL, United States, (2)University of Florida, Gainesville, FL, United States, (3)University of Florida, Winter Haven, FL, United States