Cited by 1,051Atmospheric and Environmental Gas DynamicsPlant Water Relations and Carbon DynamicsClimate variability and models

An atmospheric perspective on North American carbon dioxide exchange: CarbonTracker

Open access
Peters, Wouter, Jacobson, Andrew R., Sweeney, Colm, Andrews, Arlyn E., Conway, Thomas J., Masarie, Kenneth, Miller, John B., Bruhwiler, Lori M. P. +8 more·2007·Proceedings of the National Academy of Sciences

Abstract

We present an estimate of net CO 2 exchange between the terrestrial biosphere and the atmosphere across North America for every week in the period 2000 through 2005. This estimate is derived from a set of 28,000 CO 2 mole fraction observations in the global atmosphere that are fed into a state-of-the-art data assimilation system for CO 2 called CarbonTracker. By design, the surface fluxes produced in CarbonTracker are consistent with the recent history of CO 2 in the atmosphere and provide constraints on the net carbon flux independent from national inventories derived from accounting efforts. We find the North American terrestrial biosphere to have absorbed −0.65 PgC/yr (1 petagram = 10 15 g; negative signs are used for carbon sinks) averaged over the period studied, partly offsetting the estimated 1.85 PgC/yr release by fossil fuel burning and cement manufacturing. Uncertainty on this estimate is derived from a set of sensitivity experiments and places the sink within a range of −0.4 to −1.0 PgC/yr. The estimated sink is located mainly in the deciduous forests along the East Coast (32%) and the boreal coniferous forests (22%). Terrestrial uptake fell to −0.32 PgC/yr during the large-scale drought of 2002, suggesting sensitivity of the contemporary carbon sinks to climate extremes. CarbonTracker results are in excellent agreement with a wide collection of carbon inventories that form the basis of the first North American State of the Carbon Cycle Report (SOCCR), to be released in 2007. All CarbonTracker results are freely available at http://carbontracker.noaa.gov .

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Crossref · 10.1073/pnas.0708986104

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Authors
Peters, W., Jacobson, A. R., Sweeney, C., Andrews, A. E., Conway, T. J., Masarie, K., Miller, J. B., Bruhwiler, L. M. P., Pétron, G., Hirsch, A. I., Worthy, D. E. J., van der Werf, G. R., Randerson, J. T., Wennberg, P. O., Krol, M. C., & Tans, P. P.
Affiliations
  • National Oceanic and Atmospheric Administration (US)
  • Environment and Climate Change Canada (CA)
  • Faculty of Earth and Life Sciences, Vrije Universiteit, 1081 HV, Amsterdam, The Netherlands;
  • University of California, Irvine (US)
  • California Institute of Technology (US)
  • Wageningen University & Research (NL)
Venue
Proceedings of the National Academy of Sciences
Published
2007-11-27
Volume
104
Issue
48
Pages
18925-18930
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2166165736
Cited by
1,051
References
30
Citations by year
2026: 30 · 2025: 55 · 2024: 45 · 2023: 89 · 2022: 75 · 2021: 106 · 2020: 61 · 2019: 58 · 2018: 58 · 2017: 51 · 2016: 55 · 2015: 48 · 2014: 60 · 2013: 67 · 2012: 49
FWCI
22.97
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • VU Research Portal (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • Digital Academic REpository of VU University Amsterdam (Vrije Universiteit Amsterdam) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Atmospheric and Environmental Gas Dynamics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Plant Water Relations and Carbon Dynamics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
Keywords
CO2 flux, terrestrial carbon sink, CarbonTracker, data assimilation, fossil fuel CO2 emissions, deciduous forest, boreal coniferous forest, climate extremes, carbon inventory
MeSH terms
Agriculture, Air, Atmosphere, Carbon Dioxide, Disasters, Environmental Monitoring, Fires, Fossil Fuels, Poaceae, Human Activities, North America, Trees, Greenhouse Effect, Biomass, Crops, Agricultural

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