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UP: Fachverband Umweltphysik

UP 5: Postersession

UP 5.10: Poster

Dienstag, 14. März 2017, 16:40–18:10, GW2 B3010

Measurement of atmospheric trace gases using solar absorption spectroscopy in the Inner Tropics — •Mathias Palm¹, Cornelius Becker², Thorsten Warneke¹, Christof Petri¹, and Justus Notholt¹ — ¹Universität Bremen — ²Meterologische Dienst Suriname

Measurements of atmospheric trace gas distributions in the inner tropics are sparse. The AG Notholt of the Universität Bremen has been active since 2004 in Paramaribo, Suriname, 6N. Until 2012 measurements were only conducted on campaigns during the dry periods in spring and autumn.

Since 2012 measurements could be extended to cover the whole year. We show the first results of whole year measurements above Paramaribo and compare them to independent measurements from satellite and some first model results. This is of interest because the inner tropical convergence zone (ITCZ) sweeps over Paramaribo and allows measurements of the southern and northern atmosphere and the transition thereof.

One trace gas, HCl, which is linked to Ozone depletion, shows since a few years a very distinct seasonal cycle. First attempts of the interpretation of those measurements will be shown and discussed.