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Development of a new gas-flaring emission dataset for southern West Africa

Deetz, Konrad; Vogel, Bernhard

Abstract:
A new gas-flaring emission parameterization has been developed, which combines remote sensing observations using Visible Infrared Imaging Radiometer Suite (VIIRS) nighttime data with combustion equations. The parameterization has been applied to southern West Africa, including the Niger Delta as a region that is highly exposed to gas flaring. Two 2-month datasets for June–July 2014 and 2015 were created. The parameterization delivers emissions of CO, CO2, NO, NO2 and SO2. A flaring climatology for both time periods has been derived. The uncertainties owing to cloud cover, parameter selection, natural gas composition and the interannual differences are assessed. The largest uncertainties in the emission estimation are linked to the parameter selection. It can be shown that the flaring emissions in Nigeria have significantly decreased by 25 % from 2014 to 2015. Existing emission inventories were used for validation. CO2 emissions with the estimated uncertainty in parentheses of 2.7 (3. 6∕0. 5) Tg yr−1 for 2014 and 2.0 (2. 7∕0. 4) Tg yr−1 for 2015 were derived. Regarding the uncertainty range, the emission estimate is in the same order ... mehr


Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Forschungsbereich Troposphäre (IMK-TRO)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator DOI: 10.5194/gmd-10-1607-2017
ISSN: 1991-9603, 1991-959X
URN: urn:nbn:de:swb:90-693302
KITopen ID: 1000069330
HGF-Programm 12.01.01; LK 01
Erschienen in Geoscientific model development
Band 10
Heft 4
Seiten 1607–1620
Lizenz CC BY 4.0: Creative Commons Namensnennung 4.0 International
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
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