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Large-scale upper tropospheric pollution observed by MIPAS HCN and C₂H₆ global distributions

Glatthor, N.; Von Clarmann, T.; Stiller, G.P.; Funke, B.; Koukouli, M.E.; Fischer, H.; Grabowski, U.; Höpfner, M.; Kellmann, S.; Linden, A.

We present global upper tropospheric HCN and C2H6 amounts derived from MIPAS/ENVISAT limb emission spectra. HCN and C2H6 are retrieved in the spectral regions 715.5–782.7 cm−1 and 811.5–835.7 cm−1, respectively. The datasets consist of 54 days between September 2003 and March 2004. This period covers the peak and decline of the southern hemispheric biomass burning period and some months thereafter. HCN is a nearly unambiguous tracer of biomass burning with an assumed tropospheric lifetime of several months. Indeed, the most significant feature in the MIPAS HCN dataset is an upper tropospheric plume of enhanced values caused by southern hemispheric biomass burning, which in September and October 2003 extended from tropical South America over Africa, Australia to the Southern Pacific. The spatial extent of this plume agrees well with the MOPITT CO distribution of September 2003. Further there is good agreement with the shapes and mixing ratios of the southern hemispheric HCN and C2H6 fields measured by the ACE experiment between September and November 2005. The MIPAS HCN plume extended from the lowermost observation height of 8 km up to about 16 km altitude, with maximum values of 500–600 pptv in October 2003. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000041666
Veröffentlicht am 24.05.2018
DOI: 10.5194/acp-9-9619-2009
Zitationen: 21
Web of Science
Zitationen: 21
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung (IMK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2009
Sprache Englisch
Identifikator ISSN: 1680-7316, 1680-7324
KITopen-ID: 1000041666
HGF-Programm 12.04.02 (POF II, LK 01)
Wasserdampf und Wolken
Erschienen in Atmospheric chemistry and physics
Band 9
Heft 24
Seiten 9619-9634
Externe Relationen Abstract/Volltext
Nachgewiesen in Web of Science
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