HR: 0800h
AN: AE21A-0973    [Abstracts]
TI: A Numerical Simulation of the 12 July 1996 STERAO Thunderstorm
AU: * Zimmerman, A J
EM: Andrew.Zimmerman@gold.sdsmt.edu
AF: Institute of Atmospheric Sciences, South Dakota School of Mines and Technology, 501 East Saint Joseph St., Rapid City, SD 57701 United States
AU: Helsdon, J H
EM: John.Helsdon@sdsmt.edu
AF: Institute of Atmospheric Sciences, South Dakota School of Mines and Technology, 501 East Saint Joseph St., Rapid City, SD 57701 United States
AU: Farley, R D
EM: Richard.Farley@sdsmt.edu
AF: Institute of Atmospheric Sciences, South Dakota School of Mines and Technology, 501 East Saint Joseph St., Rapid City, SD 57701 United States
AB: We utilize our three-dimensional Storm Electrification Model with an explicit lightning scheme and chemistry to simulate the 12 July 1996 thunderstorm that occurred in northeastern Colorado during the Stratospheric-Tropospheric Experiment: Radiation, Aerosols and Ozone (STERAO) Deep Convection Field Project. The NO production is based on the energy dissipation of the lightning discharge with a pressure dependence included. The chemistry module has nine species, including NO, NO₂, O₃, and CH₄, but does not include non-methane hydrocarbons. There are eighteen reactions among the nine species, three of which are photolytic. We focus on the production of NO_x (NO + NO₂) by lightning within the model and compare our results to airborne measurements obtained during the thunderstorm.
DE: 0320 Cloud physics and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
DE: 3304 Atmospheric electricity
DE: 3324 Lightning
SC: Atmospheric and Space Electricity [AE]
MN: Fall Meeting 2005