TY - JOUR
T1 - Synthesis of Urban CO 2 Emission Estimates from Multiple Methods from the Indianapolis Flux Project (INFLUX)
AU - Turnbull, Jocelyn C.
AU - Karion, Anna
AU - Davis, Kenneth J.
AU - Lauvaux, Thomas
AU - Miles, Natasha L.
AU - Richardson, Scott J.
AU - Sweeney, Colm
AU - McKain, Kathryn
AU - Lehman, Scott J.
AU - Gurney, Kevin
AU - Patarasuk, Risa
AU - Liang, Jianming
AU - Shepson, Paul B.
AU - Heimburger, Alexie
AU - Harvey, Rebecca
AU - Whetstone, James
N1 - Funding Information:
This work has been funded by grants from the National Institute of Standards and Technology (NIST) with additional support from the National Oceanic and Atmospheric Administration Climate Program Office (NOAA-CPO). The flask-based trace gas and radiocarbon measurements were made possible by the ongoing hard work by NOAA/ESRL, University of Colorado INSTAAR, and GNS Science staff.
Publisher Copyright:
© 2018 American Chemical Society.
PY - 2019/1/2
Y1 - 2019/1/2
N2 - Urban areas contribute approximately three-quarters of fossil fuel derived CO 2 emissions, and many cities have enacted emissions mitigation plans. Evaluation of the effectiveness of mitigation efforts will require measurement of both the emission rate and its change over space and time. The relative performance of different emission estimation methods is a critical requirement to support mitigation efforts. Here we compare results of CO 2 emissions estimation methods including an inventory-based method and two different top-down atmospheric measurement approaches implemented for the Indianapolis, Indiana, U.S.A. urban area in winter. By accounting for differences in spatial and temporal coverage, as well as trace gas species measured, we find agreement among the wintertime whole-city fossil fuel CO 2 emission rate estimates to within 7%. This finding represents a major improvement over previous comparisons of urban-scale emissions, making urban CO 2 flux estimates from this study consistent with local and global emission mitigation strategy needs. The complementary application of multiple scientifically driven emissions quantification methods enables and establishes this high level of confidence and demonstrates the strength of the joint implementation of rigorous inventory and atmospheric emissions monitoring approaches.
AB - Urban areas contribute approximately three-quarters of fossil fuel derived CO 2 emissions, and many cities have enacted emissions mitigation plans. Evaluation of the effectiveness of mitigation efforts will require measurement of both the emission rate and its change over space and time. The relative performance of different emission estimation methods is a critical requirement to support mitigation efforts. Here we compare results of CO 2 emissions estimation methods including an inventory-based method and two different top-down atmospheric measurement approaches implemented for the Indianapolis, Indiana, U.S.A. urban area in winter. By accounting for differences in spatial and temporal coverage, as well as trace gas species measured, we find agreement among the wintertime whole-city fossil fuel CO 2 emission rate estimates to within 7%. This finding represents a major improvement over previous comparisons of urban-scale emissions, making urban CO 2 flux estimates from this study consistent with local and global emission mitigation strategy needs. The complementary application of multiple scientifically driven emissions quantification methods enables and establishes this high level of confidence and demonstrates the strength of the joint implementation of rigorous inventory and atmospheric emissions monitoring approaches.
UR - http://www.scopus.com/inward/record.url?scp=85059621476&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059621476&partnerID=8YFLogxK
U2 - 10.1021/acs.est.8b05552
DO - 10.1021/acs.est.8b05552
M3 - Article
C2 - 30520634
AN - SCOPUS:85059621476
SN - 0013-936X
VL - 53
SP - 287
EP - 295
JO - Environmental Science and Technology
JF - Environmental Science and Technology
IS - 1
ER -