National CO.sub.2 budgets inferred from atmospheric CO.sub.2 observations in support of the global stocktake

Accurate accounting of emissions and removals of CO.sub.2 is critical for the planning and verification of emission reduction targets in support of the Paris Agreement. Here, we present a pilot dataset of country-specific net carbon exchange (NCE; fossil plus terrestrial ecosystem fluxes) and terres...

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Published in:Earth system science data 2023-03, Vol.15 (3), p.963
Main Authors: Byrne, Brendan, Baker, David F, Basu, Sourish, Bertolacci, Michael, Bowman, Kevin W, Carroll, Dustin, Chatterjee, Abhishek, Chevallier, Frédéric, Ciais, Philippe, Cressie, Noel, Crisp, David, Crowell, Sean, Deng, Feng, Deng, Zhu, Deutscher, Nicholas M, Dubey, Manvendra K, Feng, Sha, García, Omaira E, Griffith, David W. T, Herkommer, Benedikt, Hu, Lei, Jacobson, Andrew R, Janardanan, Rajesh, Jeong, Sujong, Johnson, Matthew S, Jones, Dylan B. A, Kivi, Rigel, Liu, Junjie, Liu, Zhiqiang, Maksyutov, Shamil, Miller, John B, Miller, Scot M, Morino, Isamu, Notholt, Justus, Oda, Tomohiro, O'Dell, Christopher W, Oh, Young-Suk, Ohyama, Hirofumi, Patra, Prabir K, Peiro, Hélène, Petri, Christof, Philip, Sajeev, Pollard, David F, Poulter, Benjamin, Remaud, Marine, Schuh, Andrew, Sha, Mahesh K, Shiomi, Kei, Strong, Kimberly, Sweeney, Colm, Té, Yao, Tian, Hanqin, Velazco, Voltaire A, Vrekoussis, Mihalis, Warneke, Thorsten, Worden, John R, Wunch, Debra, Yao, Yuanzhi, Yun, Jeongmin, Zammit-Mangion, Andrew, Zeng, Ning
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Language:English
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Summary:Accurate accounting of emissions and removals of CO.sub.2 is critical for the planning and verification of emission reduction targets in support of the Paris Agreement. Here, we present a pilot dataset of country-specific net carbon exchange (NCE; fossil plus terrestrial ecosystem fluxes) and terrestrial carbon stock changes aimed at informing countries' carbon budgets. These estimates are based on "top-down" NCE outputs from the v10 Orbiting Carbon Observatory (OCO-2) modeling intercomparison project (MIP), wherein an ensemble of inverse modeling groups conducted standardized experiments assimilating OCO-2 column-averaged dry-air mole fraction (XCO2) retrievals (ACOS v10), in situ CO.sub.2 measurements or combinations of these data. The v10 OCO-2 MIP NCE estimates are combined with "bottom-up" estimates of fossil fuel emissions and lateral carbon fluxes to estimate changes in terrestrial carbon stocks, which are impacted by anthropogenic and natural drivers. These flux and stock change estimates are reported annually (2015-2020) as both a global 1.sup." x 1.sup." gridded dataset and a country-level dataset and are available for download from the Committee on Earth Observation Satellites' (CEOS) website:
ISSN:1866-3508