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

Jacobs, Nicole; Simpson, William R.; Graham, Kelly A.; Holmes, Christopher; Hase, Frank; Blumenstock, Thomas; Tu, Qiansi; Frey, Matthias; Dubey, Manvendra K.; Parker, Harrison A.; Wunch, Debra; Kivi, Rigel; Heikkinen, Pauli; Notholt, Justus; Petri, Christof; Warneke, Thorsten

doi:https://doi.org/10.5194/acp-21-16661-2021

Articles | Volume 21, issue 22

https://doi.org/10.5194/acp-21-16661-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-16661-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 22

Research article

|

16 Nov 2021

Research article |

| 16 Nov 2021

Spatial distributions of X_CO₂ seasonal cycle amplitude and phase over northern high-latitude regions

Nicole Jacobs, William R. Simpson, Kelly A. Graham, Christopher Holmes, Frank Hase, Thomas Blumenstock, Qiansi Tu, Matthias Frey, Manvendra K. Dubey, Harrison A. Parker, Debra Wunch, Rigel Kivi, Pauli Heikkinen, Justus Notholt, Christof Petri, and Thorsten Warneke

Supplement

https://doi.org/10.5194/acp-21-16661-2021-supplement

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.