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| Titel |
MAX-DOAS measurements of shipping emissions |
| VerfasserIn |
André Seyler, Folkard Wittrock, Lisa Kattner, Barbara Mathieu-Üffing, Enno Peters, Andreas Richter, Stefan Schmolke, Norbert Theobald, John P. Burrows |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250107049
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| Publikation (Nr.) |
 EGU/EGU2015-6737.pdf |
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| Zusammenfassung |
| Air pollution from ships contributes to overall air quality problems and it has direct health
effects on the population in particular in coastal regions, and in harbor cities. In order to
reduce the emissions the International Maritime Organisation (IMO) have tightened the
regulations for air pollution. E.g. Sulfur Emission Control Areas (SECA) have been
introduced where the sulfur content of marine fuel is limited. Recently, on the 1st of January
2015, the allowed sulfur content of marine fuels inside Sulfur Emission Control Areas has
been significantly decreased from 1.0% to 0.1%. However, up to now there is no regular
monitoring system available to verify that ships are complying with the new regulations.
Furthermore measurements of reactive trace gases in marine environments are in general
sparse.
The project MeSMarT (Measurements of shipping emissions in the marine
troposphere, www.mesmart.de) has been established as a cooperation between the
University of Bremen and the German Bundesamt für Seeschifffahrt und Hydrographie
(Federal Maritime and Hydrographic Agency) with support of the Helmholtz Research
Centre Geesthacht to estimate the influence of ship emissions on the chemistry of the
atmospheric boundary layer and to establish a monitoring system for main shipping
routes.
Here we present MAX-DOAS observations of NO2 and SO2 carried out from two
permanent sites close to the Elbe river (Wedel, Germany) and on the island Neuwerk close to
the mouths of Elbe and Weser river since the year 2013. Mixing ratios of both trace gases
have been retrieved using different approaches (pure geometric and taking into account the
radiative transfer) and compared to in situ observations (see Kattner et al., Monitoring
shipping fuel sulfur content regulations with in-situ measurements of shipping emissions).
Furthermore, simple approaches have been used to calculate emission factors of NOx and
SO2 for single ships. |
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