HR: 0800h
AN: SA21A-0249    [Abstracts]
TI: VLF and transient electric fields in NLC and PMSE
AU: * Shimogawa, M
EM: shimo@u.washington.edu
AF: Earth and Space Sciences, University of Washington, Seattle, WA 98195, United States
AU: Holzworth, R H
EM: bobholz@ess.washington.edu
AF: Earth and Space Sciences, University of Washington, Seattle, WA 98195, United States
AU: Robertson, S H
EM: Scott.Robertson@colorado.edu
AF: Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80309, United States
AU: Sternovsky, Z
EM: Zoltan.Sternovsky@colorado.edu
AF: Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80309, United States
AB: Two rocket payloads were launched in August 2007 to study noctilucent cloud (NLC) and polar mesospheric summer echo (PMSE) conditions from Andøya, Norway. The payloads carried a set of instruments to measure the electric field, fluctuations and the distribution of nanometer sized charged aerosol particles. The electric field measurements were performed by two pairs of electric field booms supporting two high impedance spherical probes each. Electric field variations, on the order of tens of millivolts, are seen coincident with the detection of charged particles and the observation of the NLC and PMSE events. The electric field fluctuations extend up to 1~kHz in frequency. The measurements are used to test the atmospheric turbulence origin of PMSE events.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 3332 Mesospheric dynamics
DE: 3379 Turbulence (4490)
DE: 3394 Instruments and techniques
SC: SPA-Aeronomy [SA]
MN: 2007 Fall Meeting