HR: 1340h
AN: AE33A-0947    [Abstracts]
TI: Correlating RHESSI Terrestrial Gamma-Ray Flashes With Meteorological Data
AU: * Rassoul, H K
EM: rassoul@fit.edu
AF: Florida Institute of Technology, Dept. Physics and Space Sciences, 150 West Univ. Blvd, Melbourne, FL 32901 United States
AU: Dwyer, J
EM: jdwyer@fit.edu
AF: Florida Institute of Technology, Dept. Physics and Space Sciences, 150 West Univ. Blvd, Melbourne, FL 32901 United States
AU: Coleman, L
EM: colemanl@fit.edu
AF: Florida Institute of Technology, Dept. Physics and Space Sciences, 150 West Univ. Blvd, Melbourne, FL 32901 United States
AU: Lazarus, S
EM: slazarus@fit.edu
AF: Florida Institute of Technology, Department of Marine and Environmental Systems Meteorology, 150 West Univ. Blvd, Melbourne, FL 32901 United States
AU: Splitt, M
EM: msplitt@fit.edu
AF: Florida Institute of Technology, Department of Marine and Environmental Systems Meteorology, 150 West Univ. Blvd, Melbourne, FL 32901 United States
AU: Tyndall, D
EM: dtyndall@fit.edu
AF: Florida Institute of Technology, Department of Marine and Environmental Systems Meteorology, 150 West Univ. Blvd, Melbourne, FL 32901 United States
AU: Rivera, E
EM: erivera@fit.edu
AF: Florida Institute of Technology, Department of Marine and Environmental Systems Meteorology, 150 West Univ. Blvd, Melbourne, FL 32901 United States
AU: Smith, D
EM: dsmith@scipp.ucsc.edu
AF: University of California Santa Cruz, Physics Department and Santa Cruz Institute for Particle Physics,University of California, Santa Cruz, CA 95064 United States
AB: Over the last three years, the RHESSI spacecraft has made a large number of terrestrial gamma-ray flashes (TGFs) observations, resulting in a data set with over five hundred events that cover a wide range of times and geographic positions. Recent studies of the spectral shape of the TGFs and studies on the correlation of TGFs with lightning flashes indicates that the source altitude are below 30 km and that the events may not be associate with sprites, as has long been assumed. This then opens the question of what atmospheric phenomenon is producing these gamma-ray flashes. In this poster, we will present preliminary results on a statistical study comparing TGF observations with meteorological data. What type of clouds (strataform or convective) are present during TGF events? Are clouds present during TGFs warm clouds or cold clouds? How does the environmental lapse rate affect TGFs? Are specific cloud tops associated with TGFs? Are specific cloud bases associated with TGFs? Is there correlation with the presence of clouds in general and the observed TGF events?
DE: 3300 ATMOSPHERIC PROCESSES
DE: 3304 Atmospheric electricity
DE: 3324 Lightning
DE: 3329 Mesoscale meteorology
SC: Atmospheric and Space Electricity [AE]
MN: Fall Meeting 2005