München 2004 – wissenschaftliches Programm
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UP: Umweltphysik
UP 3: Atmosph
äre und Klima II
UP 3.8: Fachvortrag
Montag, 22. März 2004, 18:15–18:30, HS 118
Carbon Monoxide Variability in the Northern and Southern Hemisphere Measured by High-Resolution Solar Absorption Spectroscopy — •Voltaire Velazco1, Justus Notholt1, Thorsten Warneke1, Astrid Schultz2, and Otto Schrems3 — 1Univesity of Bremen, Otto Hahn Allee 1, 28359 Bremen, Germany — 2Alfred Wegener Institute for Polar and Marine Research, Telegrafenberg A43 D14473 Potsdam, Germany — 3Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, Bremerhaven, Germany
Vertical profiles of atmospheric Carbon Monoxide (CO) have been retrieved from solar absorption FT-IR spectra measured at the NDSC station in Ny-Alesund, Spitsbergen (79N, 12E) and on board the German research vessel Polarstern. Results are presented from seven years of FT-IR measurements in Spitsbergen and from 5 different ship cruises in the Atlantic between 50N and 40S. CO enhancements due to biomass burning have been detected in the equatorial regions as well as in the Arctic. Other trace gases related to biomass burning have also been studied. The characterization of the profiles has been established by an information content analysis and an estimation of the error budgets.