A novel approach for independent budgeting of fossil fuel CO2 over Europe by 14CO2 observations

Levin, Ingeborg ; Kromer, Bernd ; Schmidt, Martina ; Sartorius, Hartmut

In: Geophys. Res. Lett., 30 (2003), Nr. 23.

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DOI: 10.11588/heidok.00006727
URN: urn:nbn:de:bsz:16-opus-67274
URL: http://www.ub.uni-heidelberg.de/archiv/6727

Abstract

Long-term atmospheric 14CO2 observations are deployed to quantify fossil fuel derived CO2 concentrations at a regional polluted site, and at a continental mountain station in south-west Germany. Fossil fuel CO2 emission rates for the relevant catchment areas are obtained by applying the Radon-Tracer-Method. They are shown to compare well with statistical emissions inventories but reveal a larger seasonality than assumed earlier, thus contributing significantly to the observed CO2 seasonal cycle over Europe. Based on the present approach, emissions reductions on the order of 5-10% are detectable for catchment areas of several hundred kilometres radius, as anticipated within a five-years commitment period of the Kyoto Protocol. Still no significant change of fossil fuel CO2 emissions is observed at the two sites over the last 16 years.

Document type:	Article
Journal or Publication Title:	Geophys. Res. Lett.
Volume:	30
Number:	23
Date Deposited:	08 Aug 2006 14:24
Date:	2003
Faculties / Institutes:	The Faculty of Physics and Astronomy > Institute of Environmental Physics
DDC-classification:	530 Physics
Controlled Keywords:	Kohlenstoffkreislauf, Kohlendioxidemission
Uncontrolled Keywords:	fossile Brennstoffe , C14 , Radiokohlenstofffossil fuel , carbon cycle , CO2 emissions , radiocarbon , C14
Additional Information:	2194 doi. 10.1029/2003GL018477