Articles | Volume 21, issue 22
Atmos. Chem. Phys., 21, 16661–16687, 2021
https://doi.org/10.5194/acp-21-16661-2021
Atmos. Chem. Phys., 21, 16661–16687, 2021
https://doi.org/10.5194/acp-21-16661-2021

Research article 16 Nov 2021

Research article | 16 Nov 2021

Spatial distributions of XCO2 seasonal cycle amplitude and phase over northern high-latitude regions

Nicole Jacobs et al.

Data sets

Fairbanks, AK EM27/Sun observations of XCO2, XCH4, and XCO with GGG2014 N. Jacobs, W. R. Simpson, F. Hase, T. Blumenstock, Q. Tu, M. Frey, M. K. Dubey, and H. A. Parker https://doi.org/10.3334/ORNLDAAC/1831

Model code and software

geoschem/geos-chem: GEOS-Chem 12.7.2 (12.7.2) The international GEOS-Chem Community https://doi.org/10.5281/zenodo.3701669

CAMS global inversion-optimised greenhouse gas fluxes and concentrations Copernicus https://ads.atmosphere.copernicus.eu/cdsapp\#!/dataset/cams-global-greenhouse-gas-inversion

Spatial distributions of XCO2 seasonal cycle amplitude and phase over northern high-latitude regions K. A. Graham, N.Jacobs, W. R. Simpson, C. Holmes, F. Hase, T. Blumenstock, Q. Tu, M. Frey, M. K. Dubey, H. A. Parker, D. Wunch, R. Kivi, P. Heikkinen, J. Notholt, C. Petri, and T. Warneke https://doi.org/10.5281/zenodo.5640670

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Short summary
Spatial patterns of carbon dioxide seasonal cycle amplitude and summer drawdown timing derived from the OCO-2 satellite over northern high latitudes agree well with corresponding estimates from two models. The Asian boreal forest is anomalous with the largest amplitude and earliest seasonal drawdown. Modeled land contact tracers suggest that accumulated CO2 exchanges during atmospheric transport play a major role in shaping carbon dioxide seasonality in northern high-latitude regions.
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