@article{Zazzeri:2023:10.1029/2023GL103834,
author = {Zazzeri, G and Graven, H and Xu, X and Saboya, E and Blyth, L and Manning, AJ and Chawner, H and Wu, D and Hammer, S},
doi = {10.1029/2023GL103834},
journal = {Geophysical Research Letters},
title = {Radiocarbon measurements reveal underestimated fossil CH and CO emissions in London},
url = {http://dx.doi.org/10.1029/2023GL103834},
volume = {50},
year = {2023}
}
TY - JOUR
AB - Radiocarbon (14C) is a powerful tracer of fossil emissions because fossil fuels are entirely depleted in 14C, but observations of 14CO2 and especially 14CH4 in urban regions are sparse. We present the first observations of 14C in both methane (CH4) and carbon dioxide (CO2) in an urban area (London) using a recently developed sampling system. We find that the fossil fraction of CH4 and the atmospheric concentration of fossil CO2 are consistently higher than simulated values using the atmospheric dispersion model NAME coupled with emission inventories. Observed net biospheric uptake in June–July is not well correlated with simulations using the SMURF model with NAME. The results show the partitioning of fossil and biospheric CO2 and CH4 in cities can be evaluated and improved with 14C observations when the nuclear power plants influence is negligible.
AU - Zazzeri,G
AU - Graven,H
AU - Xu,X
AU - Saboya,E
AU - Blyth,L
AU - Manning,AJ
AU - Chawner,H
AU - Wu,D
AU - Hammer,S
DO - 10.1029/2023GL103834
PY - 2023///
SN - 0094-8276
TI - Radiocarbon measurements reveal underestimated fossil CH and CO emissions in London
T2 - Geophysical Research Letters
UR - http://dx.doi.org/10.1029/2023GL103834
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001053991000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL103834
UR - http://hdl.handle.net/10044/1/107788
VL - 50
ER -