HR: 1340h
AN: AE33A-0186    [Abstracts]
TI: Relationship Between Cloud Dynamics and Electrification for a Mid-Latitude Squall Line
AU: * Biggerstaff, M I
EM: drdoppler@ou.edu
AF: University of Oklahoma, School of Meteorology 100 E. Boyd Street, Rm 1310, Norman, OK 73019 United States
AU: Carey, L
EM: carey@ariel.met.tamu.edu
AF: Texas A&M University, Dept. of Atmospheric Sciences TAMU, College Station, TX 77843 United States
AU: MacGorman, D R
EM: don.macgorman@noaa.gov
AF: CIMMS, University of Oklahoma, Norman, OK 73019 United States
AU: Rust, W D
EM: dave.rust@noaa.gov
AF: NSSL, 1313 Halley Circle, Norman, OK 73019 United States
AB: During the 2004 TELEX field program, simultaneous electric field soundings, three-dimensional lightning mapping observations, high- resolution dual-Doppler radar data, polarimetric radar data, and environmental soundings were acquired for several mesoscale convective systems, supercell storms, and non-severe thunderstorms. The overall data set was of particularly high quality for a squall line that produced frequent lightning in southern and central Oklahoma on 19 June 2004. A total of five balloon-borne electric field soundings were launched into the leading line of convection and into the trailing stratiform region. Two mobile 5-cm wavelength Doppler radars collected coordinated volume scans every 3 min throughout the period of operations. These data provide near continuous coverage of the flow through the convective system. Furthermore, all operations were well within range of a 10-cm wavelength, polarimetric radar and a three-dimensional lightning mapping array throughout the period. This presentation will emphasize the evolution of the airflow through the convective system and relate that to the structure of electriic fields and frequency of in-cloud and cloud-to-ground lightning.
DE: 3304 Atmospheric electricity
SC: Atmospheric and Space Electricity [AE]
MN: 2004 AGU Fall Meeting