Berlin 2014 – wissenschaftliches Programm
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EP: Fachverband Extraterrestrische Physik
EP 3: Erdnaher Weltraum / Planeten
EP 3.3: Vortrag
Dienstag, 18. März 2014, 11:15–11:30, DO24 1.103
Metal atom and ion number densities retrieval from SCIAMACHY/Envisat Limb mesophere and lower thermosphere states — •Martin Langowski1, Christian von Savigny2, Miriam Sinnhuber3, Art C. Aikin4, and John P. Burrows1 — 1University of Bremen, Bremen, Germany — 2University of Greifswald, Greifswald, Germany — 3Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany — 4Catholic University of Maryland, Maryland, US
A very uncertain amount of meteoric material ranging between 2 to 300 tons per day enters the earth's atmosphere every day. The meteoric material partly ablates in the upper atmosphere between 80 and 120 km altitude, which leads to the formation of metal atom layers. Furthermore metal ion layers are formed at the top of the metal layers through charge exchange with the mayor species. The metal atoms and ions show very strong resonance fluorescence signals. This emission is used to retrieve the densities of theses species.