HR: 13:52h
AN: AE53A-02    [Abstracts]
TI: Balloon Study of the Global Circuit: Spatial Coherence and Correlation with Lightning Observations
AU: Holzworth, R H
EM: bobholz@washington.edu
AF: Earth and Space Sciences, University of Washington, Seattle, WA 98195-1310 United States
AU: * Bering, E A
EM: ebering@mail.uh.edu
AF: Physics Department, University of Houston 617 Science and Research 1, Houston, TX 77204-5005 United States
AU: Kokorowski, M
AF: Earth and Space Sciences, University of Washington, Seattle, WA 98195-1310 United States
AU: Reddell, B
AF: Physics Department, University of Houston 617 Science and Research 1, Houston, TX 77204-5005 United States
AU: Kadokura, A
AF: National Institute of Polar Research, Kaga 1-chome Itabashi-ku, Tokyo, 173-8515 Japan
AU: Yamagishi, H
AF: National Institute of Polar Research, Kaga 1-chome Itabashi-ku, Tokyo, 173-8515 Japan
AU: Sato, N
AF: National Institute of Polar Research, Kaga 1-chome Itabashi-ku, Tokyo, 173-8515 Japan
AU: Ejiri, M
AF: National Institute of Polar Research, Kaga 1-chome Itabashi-ku, Tokyo, 173-8515 Japan
AU: Hirosawa, H
AF: The Institute of Space and Astronautical Science, Sagamihara Kanagawa-ku, Yokohama, 229-8510 Japan
AU: Yamagami, T
AF: The Institute of Space and Astronautical Science, Sagamihara Kanagawa-ku, Yokohama, 229-8510 Japan
AU: Torii, S
AF: Institute of Physics Kanagawa University, Kanagawa-ku, Yokohama, 221-8686 Japan
AU: Tohyama, F
AF: Faculty of Engineering Tokai University, Hiratsuka, Kanagawa, 259-1292 Japan
AU: Nakagawa, M
AF: Faculty of Science Osaka City University, Sumiyoshi-ku, Osaka, 558-8585 Japan
AU: Okada, T
AF: Faculty of Engineering, Toyama Prefectural University, Toyama, 939-0398 Japan
AB: The second campaign of the Polar Patrol Balloon (PPB) experiment (2nd-PPB) was carried out at Syowa Station in Antarctica during 2002-2003. This paper will present the global circuit results from the 2nd-PPB experiment. In that experiment, three balloons were launched for the purpose of upper atmosphere physics observation (3 balloons). Payloads of these 3 flights were identical with each other, and were launched as close together in time as allowed by weather conditions to constitute a cluster of balloons during their flights. Such a ``Balloon Cluster'' is suitable to observe temporal evolution and spatial distribution of phenomena in the ionospheric regions and boundaries that the balloons traversed during their circumpolar trajectory. More than 20 days of simultaneous fair weather 3-axis electric field and stratospheric conductivity data were obtained at geomagnetic latitudes ranging from sub-auroral to the polar cap. Balloon separation varied from $\sim$60 to $\sim$500 km. This paper will present the global circuit observations with emphasis on the times of apparent spatial variation in the vertical fair weather field. This paper will also present stratospheric conductivity observations with emphasis on the temporal and spatial variations that were observed. Finally, the inferred current density will be compared with data from the WWLL (TOGA) lightning monitor experiment.
UR: http://ppb.nipr.ac.jp/
DE: 3324 Lightning
DE: 2411 Electric fields (2712)
DE: 2427 Ionosphere/atmosphere interactions (0335)
DE: 2455 Particle precipitation
DE: 3304 Atmospheric electricity
SC: Atmospheric and Space Electricity [AE]
MN: 2004 AGU Fall Meeting