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National CO<sub>2</sub> budgets (2015–2020) inferred from atmospheric CO<sub>2</sub> observations in support of the global stocktakeстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: 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
- Журнал: Earth System Science Data
- Том: 15
- Номер: 2
- Год издания: 2023
- Первая страница: 963
- Последняя страница: 1004
- DOI: 10.5194/essd-15-963-2023
- Аннотация: Accurate accounting of emissions and removals of CO2 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 () retrievals (ACOS v10), in situ CO2 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∘ × 1∘ gridded dataset and a country-level dataset and are available for download from the Committee on Earth Observation Satellites' (CEOS) website: https://doi.org/10.48588/npf6-sw92 (Byrne et al., 2022). Across the v10 OCO-2 MIP experiments, we obtain increases in the ensemble median terrestrial carbon stocks of 3.29–4.58 Pg CO2 yr−1 (0.90–1.25 Pg C yr−1). This is a result of broad increases in terrestrial carbon stocks across the northern extratropics, while the tropics generally have stock losses but with considerable regional variability and differences between v10 OCO-2 MIP experiments. We discuss the state of the science for tracking emissions and removals using top-down methods, including current limitations and future developments towards top-down monitoring and verification systems.
- Добавил в систему: Mаксютов Шамиль Шавратович