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| Titel |
Improvements to the Aircraft Mass Balance Method for Determination of Urban-Scale Greenhouse Gas Fluxes |
| VerfasserIn |
Paul B. Shepson, Maria Cambaliza, Olivia Salmon, Ken Davis, Thomas Lauvaux, Scott Richardson, Natasha Miles, James Whetstone, Kuldeep Prasdad, Colm Sweeney, Anna Karion, Kevin Gurney, Jocelyn Turnbull |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250089798
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| Publikation (Nr.) |
 EGU/EGU2014-4011.pdf |
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| Zusammenfassung |
| As part of the Indianapolis Flux Experiment (INFLUX) and related work, we have been developing and improving the mass balance method for determination of urban area-wide fluxes of greenhouse gases, focusing on CO2 and CH4. Using one aircraft, a light twin, we have found that the uncertainty for urban scale fluxes (for a city the size of Indianapolis) is on the order of +/- 40%. A major limitation is uncertainty in the background concentrations for these gases flowing into the city. In this talk we will discuss methods to improve determination of the background concentrations, how that is impacted by changes in the boundary layer height, and recent results from INFLUX for both CO2 and CH4. We will conclude with recommendations for future improvements in this method. |
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