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|Title:||Estimating Sources and Sinks of Methane: An Atmospheric View|
|Authors:||BERGAMASCHI PETER; BOUSQUET Philippe|
|Citation:||The Continental-Scale Greenhouse Gas Balance of Europe vol. 203 p. 113-133|
|JRC Publication N°:||JRC34312|
|Type:||Contributions to Conferences|
|Abstract:||Several inverse modelling investigated global CH4 sources. These studies optimized emissions from larger global regions or from different source categories, and focussed on shorter timescales (1-2 years) or climatological averages. In this article we summarize some recent inverse modelling studies which further extend our view on the global and regional CH4 budget: (1) Based on the atmospheric zoom model TM5, Bergamaschi et al.  presented a coupled global-European inversion to derive CH4 emission estimates for individual European countries. (2) Recent satellite measurements from SCIAMACHY now provide comprehensive views on the global CH4 distribution [Frankenberg, et al., 2006; Frankenberg, et al., 2005]. We discuss some key results from a recent analysis based on TM5 inverse simulations [Bergamaschi, et al., 2006]. (3) The inter-annual variablity of CH4 sources and sink during 1984-2003 has been investigated in a recent study by Bousquet et al. . Key results of this study will be summarized.|
|JRC Institute:||Institute for Environment and Sustainability|
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