Berlin 2014 – wissenschaftliches Programm

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UP: Fachverband Umweltphysik

UP 5: Atmosphäre - Spurengase

UP 5.3: Vortrag

Mittwoch, 19. März 2014, 10:15–10:30, MAG 100

Carbon monoxide retrieved from ground based FTIR remote sensing in the mid- and near infra-red spectral reagion — •Christof Petri1, Thorsten Warneke1, Bavo Langerock2, Emmanuel Mahieu3, Bruno Franco3, Frank Hase4, and Justus Notholt11Institute of Environmental Physics, University of Bremen, Bremen, Germany — 2IASB-BIRA, Brussel, Belgium — 3Université de Liège, Liège, Belgium — 4KIT, University of Karlsruhe, Karlsruhe, Germany

The Network for the Detection of Atmospheric Composition Change ( NDACC ) and the Total Carbon Column Observing Network ( TCCON ) are the two leading networks for groundbased atmospheric FTIR measurements of tracegases.While NDACC is measuring in the middle infrared with a resolution of 0.005 wavenumbers, TCCON uses the near infrared spectral region and a resolution of 0.02 wavenumbers. The retrieval strategies in these different spectral regions are examined for interfering gases and compared in precision. Systematic deviations where found and refered to different sensitivity in the lower troposphere retrieval.

The contributing sites for this study are La Reunion, Jungfraujoch, Izana and Bremen. Bruker 125 HR interferometer have been used which are part of both, the TCCON and the NDACC network. At the Jungfraujoch site a Bruker 120 HR has been used.

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