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Jena 2013 – wissenschaftliches Programm

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UP: Fachverband Umweltphysik

UP 4: Postersession

UP 4.16: Poster

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

Greenhouse gas measurements with Fourier Transform Spectroscopy on Ascension Island — •Dietrich G. Feist and Sabrina Niebling — Max Planck Institute for Biogeochemistry, Jena, Germany

The Total Carbon Column Observing Network (TCCON) consists of several sites that measure greenhouse gases like CO2, CH4, CO, and N2O across the globe. Each site has a Fourier Transform Spectrometer (FTS) that combines a large bandwith with a high spectral resolution. The instruments use the sun as a light source and retrieve the total column concentrations of the greenhouse gases. They augment the existing network of ground based in-situ measurements and provide a valuable reference for satellite measurements.

The latest TCCON station is the FTS operated by the Max Planck Institute for Biogeochemistry in Jena, Germany, on the remote Ascension Island. It is the only equatorial station so far.

The poster provides details on the many challenges that have to be overcome to operate an automatic instrument in such a remote place. It also shows comparisons with existing data from in-situ observations, satellite measurements and global transport model calculations.

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