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| Titel |
Ground-based FTIR measurements of CO from the Jungfraujoch: characterisation and comparison with in situ surface and MOPITT data |
| VerfasserIn |
B. Barret, M. Mazière, E. Mahieu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 3, no. 6 ; Nr. 3, no. 6 (2003-12-15), S.2217-2223 |
| Datensatznummer |
250001352
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| Publikation (Nr.) |
 copernicus.org/acp-3-2217-2003.pdf |
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| Zusammenfassung |
| CO vertical profiles have been retrieved from solar
absorption FTIR spectra recorded at the NDSC station of the Jungfraujoch
(46.5º N, 8º E and 3580 m a.s.l.) for the period from January 1997 to May 2001. The characterisation of these profiles has been established
by an information content analysis and an estimation of the error budgets. A
partial validation of the profiles has been performed through comparisons with correlative measurements. The average volume mixing ratios (vmr) in the
3 km layer above the station have been compared with coincident surface measurements. The agreement between monthly means from both measurement
techniques is very good, with a correlation coefficient of 0.87, and no significant bias observed. The FTIR total columns have also been compared to
CO partial columns above 3580 m a.s.l. derived from the MOPITT (Measurement Of
Pollution In The Troposphere) instrument for the period March 2000 to May 2001. Relative to the FTIR columns, the MOPITT partial columns exhibit a
positive bias of 8±8% for daytime and of 4±7% for nighttime measurements. |
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