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dc.contributor.authorParazoo, Nicholas
dc.contributor.authorCommane, Roisin
dc.contributor.authorWofsy, Steven
dc.contributor.authorKoven, Charles
dc.contributor.authorSweeney, Colm
dc.contributor.authorLawrence, David
dc.contributor.authorLindaas, Jakob
dc.contributor.authorChang, Rachel Y.-W.
dc.contributor.authorMiller, Charles
dc.date.accessioned2019-10-03T14:38:11Z
dc.date.issued2016
dc.identifier.citationParazoo, Nicholas C., Roisin Commane, Steven C. Wofsy, Charles D. Koven, Colm Sweeney, David M. Lawrence, Jakob Lindaas, Rachel Y.-W. Chang, and Charles E. Miller. 2016. “Detecting Regional Patterns of Changing CO2flux in Alaska.” Proceedings of the National Academy of Sciences 113 (28): 7733–38. https://doi.org/10.1073/pnas.1601085113.
dc.identifier.issn0027-8424
dc.identifier.issn0744-2831
dc.identifier.issn1091-6490
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41461184*
dc.description.abstractWith rapid changes in climate and the seasonal amplitude of carbon dioxide (CO2) in the Arctic, it is critical that we detect and quantify the underlying processes controlling the changing amplitude of CO2 to better predict carbon cycle feedbacks in the Arctic climate system. We use satellite and airborne observations of atmospheric CO2 with climatically forced CO2 flux simulations to assess the detectability of Alaskan carbon cycle signals as future warming evolves. We find that current satellite remote sensing technologies can detect changing uptake accurately during the growing season but lack sufficient cold season coverage and near-surface sensitivity to constrain annual carbon balance changes at regional scale. Airborne strategies that target regular vertical profile measurements within continental interiors are more sensitive to regional flux deeper into the cold season but currently lack sufficient spatial coverage throughout the entire cold season. Thus, the current CO2 observing network is unlikely to detect potentially large CO2 sources associated with deep permafrost thaw and cold season respiration expected over the next 50 y. Although continuity of current observations is vital, strategies and technologies focused on cold season measurements (active remote sensing, aircraft, and tall towers) and systematic sampling of vertical profiles across continental interiors over the full annual cycle are required to detect the onset of carbon release from thawing permafrost.
dc.language.isoen_US
dc.publisherNational Academy of Sciences
dash.licenseLAA
dc.titleDetecting regional patterns of changing CO2 flux in Alaska
dc.typeJournal Article
dc.description.versionVersion of Record
dc.relation.journalProceedings of the National Academy of Sciences of the United States of America
dash.depositing.authorCommane, Roisin::73789562af3882362c55563c1be133e7::600
dc.date.available2019-10-03T14:38:11Z
dash.workflow.comments1Science Serial ID 91338
dc.identifier.doi10.1073/pnas.1601085113
dash.source.volume113;28
dash.source.page7733


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