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Titel |
Civil Aircraft for the regular investigation of the atmosphere based on an instrumented container: The new CARIBIC system |
VerfasserIn |
C. A. M. Brenninkmeijer, P. Crutzen , F. Boumard, T. Dauer, B. Dix, R. Ebinghaus, D. Filippi, H. Fischer, H. Franke, U. Frieß, J. Heintzenberg, F. Helleis, M. Hermann, H. H. Kock, C. Koeppel, J. Lelieveld , M. Leuenberger, B. G. Martinsson, S. Miemczyk, H. P. Moret, H. N. Nguyen, P. Nyfeler, D. Oram, D. O'Sullivan, S. Penkett, U. Platt, M. Pupek, M. Ramonet, B. Randa, M. Reichelt, T. S. Rhee, J. Rohwer, K. Rosenfeld, D. Scharffe, H. Schlager, U. Schumann, F. Slemr, D. Sprung, P. Stock, R. Thaler, F. Valentino, P. Velthoven, A. Waibel, A. Wandel, K. Waschitschek, A. Wiedensohler, I. Xueref-Remy, A. Zahn, U. Zech, H. Ziereis |
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 ; 7, no. 18 ; Nr. 7, no. 18 (2007-09-27), S.4953-4976 |
Datensatznummer |
250005205
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Publikation (Nr.) |
copernicus.org/acp-7-4953-2007.pdf |
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Zusammenfassung |
An airfreight container with automated instruments for measurement of
atmospheric gases and trace compounds was operated on a monthly basis
onboard a Boeing 767-300 ER of LTU International Airways during
long-distance flights from 1997 to 2002 (CARIBIC, Civil Aircraft for Regular
Investigation of the Atmosphere Based on an Instrument Container,
http://www.caribic-atmospheric.com). Subsequently a more advanced system has
been developed, using a larger capacity container with additional equipment
and an improved inlet system. CARIBIC phase #2 was implemented on a new
long-range aircraft type Airbus A340-600 of the Lufthansa German Airlines
(Star Alliance) in December 2004, creating a powerful flying observatory.
The instrument package comprises detectors for the measurement of O3,
total and gaseous H2O, NO and NOy, CO, CO2, O2, Hg, and
number concentrations of sub-micrometer particles (>4 nm, >12 nm, and
>18 nm diameter). Furthermore, an optical particle counter (OPC) and a
proton transfer mass spectrometer (PTR-MS) are incorporated. Aerosol samples
are collected for analysis of elemental composition and particle morphology
after flight. Air samples are taken in glass containers for laboratory
analyses of hydrocarbons, halocarbons and greenhouse gases (including
isotopic composition of CO2) in several laboratories. Absorption tubes
collect oxygenated volatile organic compounds. Three differential optical
absorption spectrometers (DOAS) with their telescopes mounted in the inlet
system measure atmospheric trace gases such as BrO, HONO, and NO2. A
video camera mounted in the inlet provides information about clouds along
the flight track. The flying observatory, its equipment and examples of
measurement results are reported. |
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