Synthesis of Urban CO2 Emission Estimates from Multiple Methods from the Indianapolis Flux Project (INFLUX)

• DOI: 10.1021/acs.est.8b05552
• Publication Date: 2018-12-06T15:30:21Z
• Authors: Jocelyn C. Turnbull; Anna Karion; Kenneth J. Davis; Thomas Lauvaux; Natasha L. Miles; Scott J. Richardson; Colm Sweeney; Kathryn McKain; Scott J. Lehman; Kevin R. Gurney; Risa Patarasuk; Jianming Liang; Paul B. Shepson; Alexie Heimburger; Rebecca Harvey; James Whetstone
• Keywords: Emission inventory

Urban areas contribute approximately three-quarters of fossil fuel derived CO2 emissions, and many cities have enacted emissions mitigation plans. Evaluation the effectiveness efforts will require measurement both emission rate its change over space time. The relative performance different estimation methods is a critical requirement to support efforts. Here we compare results including an inventory-based method two top-down atmospheric approaches implemented for Indianapolis, Indiana, U.S.A. urban area in winter. By accounting differences spatial temporal coverage, as well trace gas species measured, find agreement among wintertime whole-city estimates within 7%. This finding represents major improvement previous comparisons urban-scale making flux from this study consistent with local global strategy needs. complementary application multiple scientifically driven quantification enables establishes high level confidence demonstrates strength joint implementation rigorous inventory monitoring approaches.