HR: 0800h
AN: SA21A-0271    [Abstracts]
TI: Measurements of Meteor Smoke and Ice Particles During the ECOMA-2006 and ECOMA/MASS-2007 Rocket Campaigns
AU: * Rapp, M
EM: rapp@iap-kborn.de
AF: Leibniz Institute for Atmospheric Physics at the University of Rostock, Schlossstr. 6, Kuehlungsborn, 18225, Germany
AU: Strelnikova, I
EM: strelnikova@iap-kborn.de
AF: Leibniz Institute for Atmospheric Physics at the University of Rostock, Schlossstr. 6, Kuehlungsborn, 18225, Germany
AU: Strelnikov, B
EM: strelnikov@iap-kborn.de
AF: Leibniz Institute for Atmospheric Physics at the University of Rostock, Schlossstr. 6, Kuehlungsborn, 18225, Germany
AU: Latteck, R
EM: latteck@iap-kborn.de
AF: Leibniz Institute for Atmospheric Physics at the University of Rostock, Schlossstr. 6, Kuehlungsborn, 18225, Germany
AU: Baumgarten, G
EM: baumgarten@iap-kborn.de
AF: Leibniz Institute for Atmospheric Physics at the University of Rostock, Schlossstr. 6, Kuehlungsborn, 18225, Germany
AU: Hoppe, U
EM: uph@ffi.no
AF: Norwegian Defense Research Establishment, Division for Electronics, Kjeller, 2027, Norway
AU: Brattli, A
EM: alvin.brattli@ffi.no
AF: Norwegian Defense Research Establishment, Division for Electronics, Kjeller, 2027, Norway
AU: Friedrich, M
EM: martin.friedrich@tugraz.at
AF: Technical University Graz, Inffeldgasse 12, Graz, 8010, Austria
AU: Gumbel, J
EM: gumbel@misu.su.se
AF: Department of Meteorology, Stockholm University, 10691, Stockholm, Sweden
AU: Megner, L
EM: linda@misu.su.se
AF: Department of Meteorology, Stockholm University, 10691, Stockholm, Sweden
AU: Fricke, K
EM: fricke@physik.uni-bonn.de
AF: Department of Physics, Bonn University, Bonn, 53112, Germany
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
AU: Holzworth, R H
EM: bobholz@ess.washington.edu
AF: Earth and Space Science, University of Washington, Seattle, WA 98195, United States
AB: In the course of the European ECOMA project (ECOMA = Existence and Charge State of Meteoric Smoke Particles in the Middle Atmosphere) two sounding rocket campaigns were conducted in September 2006 and August 2007 from the North Norwegian Andoya Rocket Range (69N). The latter campaign was closely coordinated with the US-American MASS campaign which also focused on mesospheric aerosol particles and their plasma environment. A core instrument of the ECOMA payload is a Faraday-Cup-based particle detector which is combined with a Xenon-flashlight for the active photo-ionization of mesospheric aerosol particles. The first launch in September 2006 revealed evidence for meteor smoke particles in the entire altitude range from 60 - 110 km, as indicated by detected photo-emission signatures. In August 2007, however, when the ECOMA payload was launched into a weak event of polar mesosphere summer echoes and noctilucent clouds, particle signatures were confined to the altitude region of mesospheric ice layers identified by the ALWIN MST radar and the ALOMAR RMR lidar, i.e., roughly between 82 - 88 km altitude. These results will be discussed in the scope of our current understanding of the seasonal distribution of meteor smoke particles, corresponding implications for the nucleation of mesospheric ice clouds, and the physical mechanisms giving rise to polar mesosphere summer echoes.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0340 Middle atmosphere: composition and chemistry
DE: 2439 Ionospheric irregularities
DE: 2461 Plasma interactions with dust and aerosols (7849)
SC: SPA-Aeronomy [SA]
MN: 2007 Fall Meeting