HR: 10:45h
AN: AE41B-02    [PDF]
TI: Geo-location of Sprites Observed from the Space Shuttle Columbia during STS-107 using ELF methods
AU: Greenberg, E
EM: erangree@post.tau.ac.il
AF: Department of Geophysics and Planetary Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978 Israel
AU: * Price, C
EM: cprice@flash.tau.ac.il
AF: Department of Geophysics and Planetary Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978 Israel
AU: Yair, Y
EM: yoavya@oumail.openu.ac.il
AF: Department of Natural Science, The Open University, Ramat Aviv, Tel Aviv, 69978 Israel
AU: Levin, Z
EM: zev@hail.tau.ac.il
AF: Department of Geophysics and Planetary Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978 Israel
AU: Israelevitch, P
EM: peter@luna.tau.ac.il
AF: Department of Geophysics and Planetary Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978 Israel
AU: Dvir, A
EM: adam@post.tau.ac.il
AF: Department of Geophysics and Planetary Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978 Israel
AU: Moalem, M
EM: meir@yahoo.com
AF: Israel Air Force, Somewhere in Israel, Tel Aviv, 66666 Israel
AU: Satori, G
EM: satori@ggki.hu
AF: Hungarian Geodetic Institute, Somewhere in Sopron, Sopron, 77777 Hungary
AU: Sato, M
EM: msato@pat.geophys.tohoku.ac.jp
AF: Tohoku University, Somewhere in Sendai, Sendai, 88888 Japan
AU: Takahashi, Y
EM: yukihiro@pat.geophys.tohoku.ac.jp
AF: Tohoku University, Somewhere in Sendai, Sendai, 88888 Japan
AU: Fuellekrug, M
EM: fuellekr@geophysik.uni-frankfurt.de
AF: Institut fur Meteorologie und Geophysik, University of Frankfurt/Main, Somewhere in Frankfurt, Frankfurt, 99999 Germany
AB: During the Mediterranean Israeli Dust Experiment (MEIDEX) on board the Columbia space shuttle, sprites, elves and other TLEs were observed by the astronauts using a multispectral CCD video camera. Simultaneously on the ground a number of groups collected extremely low frequency (ELF) electromagnetic data to try to identify, locate, and quantify parameters related to the parent lightning that triggered the TLEs. Using 5 ELF stations (Israel, Hungary, Japan, Antarctica and California) we were able to triangulate on numerous common events. In addition, we have developed a new method of determining the geo-location of the transient ELF sources using both horizontal-magnetic and vertical-electric field data at a single station (Israel). This method involves fitting the observed magnetic and electric field spectra to theoretical spectra with known source-receiver distances. Furthermore, we have found that it is possible to dramatically improve the bearing accuracy of the ELF transient signals by using the ratio of the Poynting vector components. We have initially focused on the TLEs observed over central Africa during the night of 22 January, 2003. The majority of transients on this night are related to positive CG flashes within these thunderstorms, though some events had no clear parent-lightning signatures in the ELF domain.
DE: 0619 Electromagnetic theory
DE: 3304 Atmospheric electricity
DE: 3324 Lightning
DE: 6904 Atmospheric propagation
DE: 6964 Radio wave propagation
SC: Atmospheric and Space Electricity [AE]
MN: 2003 Fall Meeting