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Local air pollution from oil rig emissions observed during the airborne DACCIWA campaign

Brocchi, V.; Krysztofiak, G.; Deroubaix, A.; Stratmann, G.; Sauer, D.; Schlager, H.; Deetz, K.; Dayma, G.; Robert, C.; Chevrier, S.; Catoire, V.

Abstract (englisch):
In the framework of the European DACCIWA (Dynamics–Aerosol–Chemistry–Cloud Interactions in West Africa) project, the airborne study APSOWA (Atmospheric Pollution from Shipping and Oil platforms of West Africa) was conducted in July 2016 to study oil rig emissions off the Gulf of Guinea. Two flights in the marine boundary layer were focused on the floating production storage and offloading (FPSO) vessel operating off the coast of Ghana. Those flights present simultaneous sudden increases in NO2 and aerosol concentrations. Unlike what can be found in flaring emission inventories, no increase in SO2 was detected, and an increase in CO is observed only during one of the two flights. Using FLEXPART (FLEXible PARTicle dispersion model) simulations with a regional NO2 satellite flaring inventory in forward-trajectory mode, our study reproduces the timing of the aircraft NO2 enhancements. Several sensitivity tests on the flux and the injection height are also performed, leading to the conclusion that a lower NO2 flux helps in better reproducing the measurements and that the modification of the injection height does not impact the results of the simulations significantly.

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Verlagsausgabe §
DOI: 10.5445/IR/1000098556
Veröffentlicht am 30.09.2019
Originalveröffentlichung
DOI: 10.5194/acp-19-11401-2019
Coverbild
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Forschungsbereich Troposphäre (IMK-TRO)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 1680-7316, 1680-7324
KITopen-ID: 1000098556
Erschienen in Atmospheric chemistry and physics
Band 19
Heft 17
Seiten 11401-11411
Vorab online veröffentlicht am 10.09.2019
Nachgewiesen in Scopus
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