Gradients of column CO<sub>2</sub> across North America from the NOAA Global Greenhouse Gas Reference Network

Lan, Xin; Tans, Pieter; Sweeney, Colm; Andrews, Arlyn; Jacobson, Andrew; Crotwell, Molly; Dlugokencky, Edward; Kofler, Jonathan; Lang, Patricia; Thoning, Kirk; Wolter, Sonja

doi:https://doi.org/10.5194/acp-17-15151-2017

Articles | Volume 17, issue 24

https://doi.org/10.5194/acp-17-15151-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-15151-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 24

Research article

|

21 Dec 2017

Research article |

| 21 Dec 2017

Gradients of column CO₂ across North America from the NOAA Global Greenhouse Gas Reference Network

Xin Lan, Pieter Tans, Colm Sweeney, Arlyn Andrews, Andrew Jacobson, Molly Crotwell, Edward Dlugokencky, Jonathan Kofler, Patricia Lang, Kirk Thoning, and Sonja Wolter

Supplement

https://doi.org/10.5194/acp-17-15151-2017-supplement

Data sets

CarbonTracker CT2015 National Oceanic & Atmospheric Administration (NOAA) https://www.esrl.noaa.gov/gmd/ccgg/carbontracker/CT2015/

Observation Package (ObsPack) Data Products National Oceanic & Atmospheric Administration (NOAA) https://doi.org/10.15138/G3H59M

AirCore data in the study of "Gradients of column CO2 across North America from the NOAA Global Greenhouse Gas Reference Network" C. Sweeney, T. Newberger, S. Wolter, H. Chen, M. L. Fischer, J. Higgs, and X. Lan https://doi.org/10.15138/G3N33W

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Short summary

We analyze spatial patterns of column CO₂ over North America using well-calibrated aircraft and tall tower measurements. We find that the long-term averaged spatial gradients of column CO₂ across North America show a smooth pattern that mainly reflects the large-scale circulation. Our results can serve as a good reference for evaluating current and future column CO₂ retrievals from both ground and satellite platforms.