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| Titel |
Tracking and verifying anthropogenic CO2 emissions over the Swiss Plateau |
| VerfasserIn |
Brian Oney, Dominik Brunner, Stephan Henne, Markus Leuenberger |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250076891
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| Zusammenfassung |
| The Swiss Plateau is the densely populated and industrialized part of Switzerland producing
more than 90% of the country’s total greenhouse gas emissions. Verification of the efficacy of
emission mitigation measures in a post Kyoto Protocol era will require several levels of
scrutiny at local and regional scales. We present a measurement and modeling system, which
quantifies anthropogenic CO2 emissions at a regional scale using the Lagrangian particle
dispersion model FLEXPART driven by output from a high-resolution regional scale
atmospheric model (COSMO) and observations from two tall tower sites. These rural
measurement sites are situated between the largest cities of Switzerland (Zürich, Geneva,
Basel and Bern). We present methods used to discretize the anthropogenic CO2 signal from
atmospheric CO2 measurements. First, we perform high resolution, time-inverted simulations
of air transport combined with a new high quality Swiss CO2 emissions inventory to
determine a model-estimated anthropogenic portion of the measured CO2. Second, we assess
the utility of CO measurements and the relationship between CO2 and CO in combustion
processes as a proxy to quantify the anthropogenic CO2 fraction directly from the
measurements. We then compare these two methods in their ability to determine the
anthropogenic portion of CO2 measurements at a high temporal resolution (hours). Finally,
we assess the quality of the simulated atmospheric transport by comparing CO
concentrations obtained with the same atmospheric transport model and a high resolution CO
emission inventory with the measured CO concentrations. This comparison of methods
for determining anthropogenic CO2 emissions provides information on how to
independently certify reported CO2 emissions. This study is a first step towards a
prototype GHG monitoring and verification system for the regional scale in a complex
topographic setting, which constitutes a necessary component of emissions reporting. |
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