Using measurements of atmospheric 14CO in a global network to improve understanding of OH spatial and temporal variability

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dc.contributor.authorPetrenko, VVen_AU
dc.contributor.authorCrosier, EMen_AU
dc.contributor.authorSmith, AMen_AU
dc.contributor.authorYang, Ben_AU
dc.contributor.authorScholer, Men_AU
dc.contributor.authorMcCrea, Ken_AU
dc.contributor.authorMurray, LTen_AU
dc.contributor.authorColton, Aen_AU
dc.contributor.authorThomas, Ben_AU
dc.contributor.authorTalamoa, Gen_AU
dc.contributor.authorMusick, Ren_AU
dc.contributor.authorSchaefer, Hen_AU
dc.contributor.authorMoss, RCen_AU
dc.contributor.authorSpain, Gen_AU
dc.contributor.authorYann, Hen_AU
dc.contributor.authorHernandez, Pen_AU
dc.contributor.authorBlades, Een_AU
dc.contributor.authorChewitt-Lucas, RMen_AU
dc.contributor.authorKazemi, Ren_AU
dc.contributor.authorStock, MPen_AU
dc.date.accessioned2023-01-27T01:28:10Zen_AU
dc.date.available2023-01-27T01:28:10Zen_AU
dc.date.issued2022-12-16en_AU
dc.date.statistics2023-01-19en_AU
dc.description.abstractThe primary source of 14C-containing carbon monoxide (14CO) in the atmosphere is via 14C production from 14N by secondary cosmic rays, and the primary sink is removal by hydroxyl radicals (OH). Variations in the abundance of 14CO that are not explained by variations in 14CO production or transport are mainly driven by variations in the abundance of OH. Because of its relatively short atmospheric lifetime (≈2 months on average), 14CO abundance is sensitive to spatial and seasonal OH variability. 14CO measurements in a new global network were made for one calendar year in 2021. Simulations in the GEOS-Chem chemical transport model (CTM) indicate that our 14CO network has good sensitivity to variations in both regional and global OH. In this presentation, we will show the new measurements as well as the CTM results available to-date.en_AU
dc.identifier.articlenumberA42Q-1933en_AU
dc.identifier.booktitleAGU Fall Meeting Abstractsen_AU
dc.identifier.citationPetrenko. V. V., Crosier, E., Smith, A. M., Yang, B., Schole, M., McCrea, K., Murray, L. T., Colton, A., Thomas, B., Talamoa, G., Musick, R., Schaefer, H., Moss, R. C., Spain, G., Yann, H., Hernandez, P., Bades, E., Chewitt-Lucas, R. M., Kazemi., R & Stock, M. P. (2022). Using measurements of atmospheric 14CO in a global network to improve understanding of OH spatial and temporal variability. Presentation to the AGU Fall Meeting, Chicago, IL & Online Everywhere, 12-16 December 2022. In AGU Fall Meeting Abstracts (Vol. 2022, A42Q-1933). Retrieved from: https://agu.confex.com/agu/fm22/meetingapp.cgi/Paper/1173332en_AU
dc.identifier.conferenceenddate16 December 2022en_AU
dc.identifier.conferencenameAGU Fall Meetingen_AU
dc.identifier.conferenceplaceChicago, IL & Online Everywhereen_AU
dc.identifier.conferencestartdate12 December 2022en_AU
dc.identifier.urihttps://agu.confex.com/agu/fm22/meetingapp.cgi/Paper/1173332en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14546en_AU
dc.identifier.volume2022en_AU
dc.language.isoenen_AU
dc.publisherAmerican Geophysical Union (AGU)en_AU
dc.subjectCarbon 14en_AU
dc.subjectCarbon monoxideen_AU
dc.subjectCosmic ray detectionen_AU
dc.subjectHydroxyl radicalsen_AU
dc.subjectSeasonsen_AU
dc.subjectGenetic variabityen_AU
dc.titleUsing measurements of atmospheric 14CO in a global network to improve understanding of OH spatial and temporal variabilityen_AU
dc.typeConference Posteren_AU
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