Jena 2013 – wissenschaftliches Programm

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UP: Fachverband Umweltphysik

UP 4: Postersession

UP 4.14: Poster

Dienstag, 26. Februar 2013, 17:15–18:30, Poster EG

Consistency of CO retrievals between the global networks NDACC and TCCON — •Christof Petri, Thorsten Warnecke, Mathias Palm, Nick Deutscher, and Justus Notholt — Institute of Environmental Physics, University of Bremen, Bremen, 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. NDACC was established to ob- serve stratospheric tracegases, later the activities were extended to the complete atmosphere. TCCON is specialised in the observation of greenhouse gases. 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. The retrieval programs gfit and sfit are used.

The measurements have been performed in Bremen using a Bruker 125HR interferometer which is part of both, the TCCON and the NDACC network.

This study is performed within the Demonstration Network Of ground-based Remote Sensing Observations (NORS), support by the European Commission within the 7th Framework Program.