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Titel |
Global distributions of C2H6, C2H2, HCN, and PAN retrieved from MIPAS reduced spectral resolution measurements |
VerfasserIn |
A. Wiegele, N. Glatthor, M. Höpfner, U. Grabowski, S. Kellmann, A. Linden, G. Stiller, T. Clarmann |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1867-1381
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Digitales Dokument |
URL |
Erschienen |
In: Atmospheric Measurement Techniques ; 5, no. 4 ; Nr. 5, no. 4 (2012-04-13), S.723-734 |
Datensatznummer |
250002775
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Publikation (Nr.) |
copernicus.org/amt-5-723-2012.pdf |
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Zusammenfassung |
Vertical profiles of mixing ratios of C2H6, C2H2, HCN, and
PAN were retrieved from MIPAS reduced spectral resolution nominal
mode limb emission measurements. The retrieval strategy follows that of the
analysis of MIPAS high resolution measurements, with occasional adjustments
to cope with the reduced spectral resolution under which MIPAS is operated
since 2005. MIPAS measurements from January 2005 to January 2010 have been
analyzed with special emphasis on October 2007. Largest mixing
ratios are found in the troposphere, and reach
1.2 ppbv for C2H6, 1 ppbv for HCN, 600 pptv for PAN, and 450 pptv for
C2H2. The estimated precisions in case of significantly enhanced mixing
ratios (including measurement noise and
propagation of uncertain parameters randomly varying in the time domain) and
altitude resolution are typically
10%, 3–4.5 km for C2H6,
15%, 4–6 km for HCN,
6%, 2.5–3.5 km for PAN, and
7%, 2.5–4 km for C2H2. |
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