Publications


Jin, Y., Keeling, R. F., Stephens, B. B., Long, M. C., Patra, P. K., Rödenbeck, C., Morgan, E. J., Kort, E. A., & Sweeney, C. (2024). Improved atmospheric constraints on Southern Ocean CO 2 exchange. Proceedings of the National Academy of Sciences, 121(6), e2309333121. https://doi.org/10.1073/pnas.2309333121
Rödenbeck, C., Adcock, K. E., Eritt, M., Gachkivskyi, M., Gerbig, C., Hammer, S., Jordan, A., Keeling, R. F., Levin, I., Maier, F., Manning, A. C., Moossen, H., Munassar, S., Pickers, P. A., Rothe, M., Tohjima, Y., & Zaehle, S. (2023). The suitability of atmospheric oxygen measurements to constrain western European fossil-fuel CO 2 emissions and their trends. Atmospheric Chemistry and Physics, 23(24), 15767–15782. https://doi.org/10.5194/acp-23-15767-2023
Battle, M. O., Raynor, A. R., Kesler, S. E., & Keeling, R. F. (2023). The Impact of Industrial Activity on the Amount of Atmospheric O2. Tellus B: Chemical and Physical Meteorology, 75(1), 65–75. https://doi.org/10.16993/tellusb.1875
Worthy, D. E. J., Rauh, M. K., Huang, L., Vogel, F. R., Chivulescu, A., Masarie, K. A., Langenfelds, R. L., Krummel, P. B., Allison, C. E., Crotwell, A. M., Madronich, M., Pétron, G., Levin, I., Hammer, S., Michel, S., Ramonet, M., Schmidt, M., Jordan, A., Moossen, H., … Morgan, E. J. (2023). Results of a long-term international comparison of greenhouse gas and isotope measurements at the Global Atmosphere Watch (GAW) Observatory in Alert, Nunavut, Canada. Atmospheric Measurement Techniques, 16(23), 5909–5935. https://doi.org/10.5194/amt-16-5909-2023
Friedlingstein, P., O’Sullivan, M., Jones, M. W., Andrew, R. M., Bakker, D. C. E., Hauck, J., Landschützer, P., Le Quéré, C., Luijkx, I. T., Peters, G. P., Peters, W., Pongratz, J., Schwingshackl, C., Sitch, S., Canadell, J. G., Ciais, P., Jackson, R. B., Alin, S. R., Anthoni, P., … Zheng, B. (2023). Global Carbon Budget 2023. Earth System Science Data, 15(12), 5301–5369. https://doi.org/10.5194/essd-15-5301-2023
Abdulla, A., Telschow, F. J., Dohner, J., Keeling, R. F., Schwartzman, A., & Victor, D. G. (2023). Atmospheric verification of emissions reductions on paths to deep decarbonization. Environmental Research Letters, 18(4), 044003. https://doi.org/10.1088/1748-9326/acbf69
Birner, B., Morgan, E., & Keeling, R. F. (2023). Short-term variability of atmospheric helium revealed through a cryo-enrichment method. Atmospheric Measurement Techniques, 16(6), 1551–1561. https://doi.org/10.5194/amt-16-1551-2023
Yadav, V., Verhulst, K., Duren, R., Thorpe, A., Kim, J., Keeling, R., Weiss, R., Cusworth, D., Mountain, M., Miller, C., & Whetstone, J. (2023). A declining trend of methane emissions in the Los Angeles basin from 2015 to 2020. Environmental Research Letters, 18(3), 034004. https://doi.org/10.1088/1748-9326/acb6a9
Jin, Y., Stephens, B. B., Keeling, R. F., Morgan, E. J., Rödenbeck, C., Patra, P. K., & Long, M. C. (2023). Seasonal Tropospheric Distribution and Air‐Sea Fluxes of Atmospheric Potential Oxygen From Global Airborne Observations. Global Biogeochemical Cycles, 37(10), e2023GB007827. https://doi.org/10.1029/2023GB007827
Birner, B., Rödenbeck, C., Dohner, J. L., Schwartzman, A., & Keeling, R. F. (2023). Surprising stability of recent global carbon cycling enables improved fossil fuel emission verification. Nature Climate Change, 13(9), 961–966. https://doi.org/10.1038/s41558-023-01761-x
Loechli, M., Stephens, B. B., Commane, R., Chevallier, F., McKain, K., Keeling, R. F., Morgan, E. J., Patra, P. K., Sargent, M. R., Sweeney, C., & Keppel‐Aleks, G. (2023). Evaluating Northern Hemisphere Growing Season Net Carbon Flux in Climate Models Using Aircraft Observations. Global Biogeochemical Cycles, 37(2). https://doi.org/10.1029/2022GB007520
Dohner, J. L., Birner, B., Schwartzman, A., Pongratz, J., & Keeling, R. F. (2022). Using the atmospheric CO 2 growth rate to constrain the CO 2 flux from land use and land cover change since 1900. Global Change Biology, gcb.16396. https://doi.org/10.1111/gcb.16396
Jin, Y., Keeling, R. F., Rödenbeck, C., Patra, P. K., Piper, S. C., & Schwartzman, A. (2022). Impact of Changing Winds on the Mauna Loa CO 2 Seasonal Cycle in Relation to the Pacific Decadal Oscillation. Journal of Geophysical Research: Atmospheres, 127(13). https://doi.org/10.1029/2021JD035892
Birner, B., Severinghaus, J., Paplawsky, B., & Keeling, R. F. (2022). Increasing atmospheric helium due to fossil fuel exploitation. Nature Geoscience, 15(5), 346-+. https://doi.org/10.1038/s41561-022-00932-3
Rodenbeck, C., DeVries, T., Hauck, J., Le Quere, C., & Keeling, R. F. (2022). Data-based estimates of interannual sea-air CO2 flux variations 1957-2020 and their relation to environmental drivers. Biogeosciences, 19(10), 2627–2652. https://doi.org/10.5194/bg-19-2627-2022
Mitchell, L. E., Lin, J. C., Hutyra, L. R., Bowling, D. R., Cohen, R. C., Davis, K. J., DiGangi, E., Duren, R. M., Ehleringer, J. R., Fain, C., Falk, M., Guha, A., Karion, A., Keeling, R. F., Kim, J., Miles, N. L., Miller, C. E., Newman, S., Pataki, D. E., … Wofsy, S. C. (2022). A multi-city urban atmospheric greenhouse gas measurement data synthesis. Scientific Data, 9(1), 361. https://doi.org/10.1038/s41597-022-01467-3
Long, M. C., Stephens, B. B., McKain, K., Sweeney, C., Keeling, R. F., Kort, E. A., Morgan, E. J., Bent, J. D., Chandra, N., Chevallier, F., Commane, R., Daube, B. C., Krummel, P. B., Loh, Z., Luijkx, I. T., Munro, D., Patra, P., Peters, W., Ramonet, M., … Wofsy, S. C. (2021). Strong Southern Ocean carbon uptake evident in airborne observations. Science, 374(6572), 1275-+. https://doi.org/10.1126/science.abi4355
Lovenduski, N. S., Chatterjee, A., Swart, N. C., Fyfe, J. C., Keeling, R. F., & Schimel, D. (2021). On the Detection of COVID-Driven Changes in Atmospheric Carbon Dioxide. Geophysical Research Letters, 48(22), 8. https://doi.org/10.1029/2021gl095396
Aoki, N., Ishidoya, S., Tohjima, Y., Morimoto, S., Keeling, R. F., Cox, A., Takebayashi, S., & Murayama, S. (2021). Intercomparison of O2/N2 ratio scales among AIST, NIES,<?xmltex \hack{\break}?> TU, and SIO based on a round-robin exercise using<?xmltex \hack{\break}?> gravimetric standard mixtures. Atmospheric Measurement Techniques, 14(9), 6181–6193. https://doi.org/10.5194/amt-14-6181-2021
Morgan, E. J., Manizza, M., Keeling, R. F., Resplandy, L., Mikaloff-Fletcher, S. E., Nevison, C. D., Jin, Y. M., Bent, J. D., Aumont, O., Doney, S. C., Dunne, J. P., John, J., Lima, I. D., Long, M. C., & Rodgers, K. B. (2021). An Atmospheric Constraint on the Seasonal Air-Sea Exchange of Oxygen and Heat in the Extratropics. Journal of Geophysical Research-Oceans, 126(8), 20. https://doi.org/10.1029/2021jc017510
Yadav, V., Ghosh, S., Mueller, K., Karion, A., Roest, G., Gourdji, S. M., Lopez-Coto, I., Gurney, K. R., Parazoo, N., Verhulst, K. R., Kim, J., Prinzivalli, S., Fain, C., Nehrkorn, T., Mountain, M., Keeling, R. F., Weiss, R. F., Duren, R., Miller, C. E., & Whetstone, J. (2021). The impact of COVID-19 on CO2 emissions in the Los Angeles and Washington DC/Baltimore metropolitan areas. Geophysical Research Letters, 48(11). https://doi.org/10.1029/2021gl092744
Wang, K., Wang, X. H., Piao, S. L., Chevallier, F., Mao, J. F., Shi, X. Y., Huntingford, C., Bastos, A., Ciais, P., Xu, H., Keeling, R. F., Pacala, S. W., & Chen, A. P. (2021). Unusual characteristics of the carbon cycle during the 2015-2016 El Nino. Global Change Biology. https://doi.org/10.1111/gcb.15669
Stephens, B. B., Morgan, E. J., Bent, J. D., Keeling, R. F., Watt, A. S., Shertz, S. R., & Daube, B. C. (2021). Airborne measurements of oxygen concentration from the surface to the lower stratosphere and pole to pole. Atmospheric Measurement Techniques, 14(3), 2543–2574. https://doi.org/10.5194/amt-14-2543-2021
Birner, B., Paplawsky, W., Severinghaus, J., & Keeling, R. F. (2021). A method for resolving changes in atmospheric He / N-2 as an indicator of fossil fuel extraction and stratospheric circulation. Atmospheric Measurement Techniques, 14(3), 2515–2527. https://doi.org/10.5194/amt-14-2515-2021
Keeling, R. F., Powell, F. L., Shaffer, G., Robbins, P. A., & Simonson, T. S. (2021). Impacts of changes in atmospheric O-2 on human physiology. Is there a basis for concern? Frontiers in Physiology, 12. https://doi.org/10.3389/fphys.2021.571137
Jin, Y. M., Keeling, R. F., Morgan, E. J., Ray, E., Parazoo, N. C., & Stephens, B. B. (2021). A mass-weighted isentropic coordinate for mapping chemical tracers and computing atmospheric inventories. Atmospheric Chemistry and Physics, 21(1), 217–238. https://doi.org/10.5194/acp-21-217-2021
Graven, H., Keeling, R. F., & Rogelj, J. (2020). Changes to carbon isotopes in atmospheric CO2 over the industrial era and into the future. Global Biogeochemical Cycles, 34(11). https://doi.org/10.1029/2019gb006170
Birner, B., Chipperfield, M. P., Morgan, E. J., Stephens, B. B., Linz, M., Feng, W. H., Wilson, C., Bent, J. D., Wofsy, S. C., Severinghaus, J., & Keeling, R. F. (2020). Gravitational separation of Ar/N-2 and age of air in the lowermost stratosphere in airborne observations and a chemical transport model. Atmospheric Chemistry and Physics, 20(21), 12391–12408. https://doi.org/10.5194/acp-20-12391-2020
Walker, A. P., De Kauwe, M. G., Bastos, A., Belmecheri, S., Georgiou, K., Keeling, R. F., McMahon, S. M., Medlyn, B. E., Moore, D. J. P., Norby, R. J., Zaehle, S., Anderson-Teixeira, K. J., Battipaglia, G., Brienen, R. J. W., Cabugao, K. G., Cailleret, M., Campbell, E., Canadell, J. G., Ciais, P., … Zuidema, P. A. (2020). Integrating the evidence for a terrestrial carbon sink caused by increasing atmospheric CO2. New Phytologist. https://doi.org/10.1111/nph.16866
Rodenbeck, C., Zaehle, S., Keeling, R., & Heimann, M. (2020). The European carbon cycle response to heat and drought as seen from atmospheric CO(2)data for 1999-2018. Philosophical Transactions of the Royal Society B-Biological Sciences, 375(1810). https://doi.org/10.1098/rstb.2019.0506
Wang, K., Wang, Y. L., Wang, X. H., He, Y., Li, X. Y., Keeling, R. F., Ciais, P., Heimann, M., Peng, S. S., Chevallier, F., Friedlingstein, P., Sitch, S., Buermann, W., Arora, V. K., Haverd, V., Jain, A. K., Kato, E., Lienert, S., Lombardozzi, D., … Piao, S. L. (2020). Causes of slowing-down seasonal CO(2)amplitude at Mauna Loa. Global Change Biology, 26(8), 4462–4477. https://doi.org/10.1111/gcb.15162
Nevison, C. D., Munro, D. R., Lovenduski, N. S., Keeling, R. F., Manizza, M., Morgan, E. J., & Rodenbeck, C. (2020). Southern Annular Mode influence on wintertime ventilation of the Southern Ocean detected in atmospheric O-2 and CO2 measurements. Geophysical Research Letters, 47(4). https://doi.org/10.1029/2019gl085667
Resplandy, L., Keeling, R. F., Eddebbar, Y., Brooks, M., Wang, R., Bopp, L., Long, M. C., Dunne, J. P., Koeve, W., & Oschlies, A. (2019). Quantification of ocean heat uptake from changes in atmospheric O-2 and CO2 composition. Scientific Reports, 9. https://doi.org/10.1038/s41598-019-56490-z
Morgan, E. J., Stephens, B. B., Long, M. C., Keeling, R. F., Bent, J. D., McKain, K., Sweeney, C., Hoecker-Martinez, M. S., & Kort, E. A. (2019). Summertime atmospheric boundary layer gradients of O-2 and CO2 over the Southern Ocean. Journal of Geophysical Research-Atmospheres. https://doi.org/10.1029/2019jd031479
Asher, E., Hornbrook, R. S., Stephens, B. B., Kinnison, D., Morgan, E. J., Keeling, R. F., Atlas, E. L., Schauffler, S. M., Tilmes, S., Kort, E. A., Hoecker-Martinez, M. S., Long, M. C., Lamarque, J. F., Saiz-Lopez, A., McKain, K., Sweeney, C., Hills, A. J., & Apel, E. C. (2019). Novel approaches to improve estimates of short-lived halocarbon emissions during summer from the Southern Ocean using airborne observations. Atmospheric Chemistry and Physics, 19(22), 14071–14090. https://doi.org/10.5194/acp-19-14071-2019
Wang, J. A., Sulla-Menashe, D., Woodcock, C. E., Sonnentag, O., Keeling, R. F., & Friedl, M. A. (2019). Extensive land cover change across Arctic-Boreal Northwestern North America from disturbance and climate forcing. Global Change Biology. https://doi.org/10.1111/gcb.14804
Cui, Y. Y., Vijayan, A., Falk, M., Hsu, Y. K., Yin, D. Z., Chen, X. M., Zhao, Z., Avise, J., Chen, Y. J., Verhulst, K., Duren, R., Yadav, V., Miller, C., Weiss, R., Keeling, R., Kim, J., Iraci, L. T., Tanaka, T., Johnson, M. S., … Croes, B. (2019). A multiplatform inversion estimation of statewide and regional methane emissions in California during 2014-2016. Environmental Science & Technology, 53(16), 9636–9645. https://doi.org/10.1021/acs.est.9b01769
Eddebbar, Y. A., Rodgers, K. B., Long, M. C., Subramanian, A. C., Xie, S. P., & Keeling, R. F. (2019). El Nino-like physical and biogeochemical ocean response to tropical eruptions. Journal of Climate, 32(9), 2627–2649. https://doi.org/10.1175/jcli-d-18-0458.1
Yadav, V., Duren, R., Mueller, K., Verhulst, K. R., Nehrkorn, T., Kim, J., Weiss, R. F., Keeling, R., Sander, S., Fischer, M. L., Newman, S., Falk, M., Kuwayama, T., Hopkins, F., Rafiq, T., Whetstone, J., & Miller, C. (2019). Spatio-temporally resolved methane fluxes from the Los Angeles megacity. Journal of Geophysical Research-Atmospheres, 124(9), 5131–5148. https://doi.org/10.1029/2018jd030062
Le Quere, C., Andrew, R. M., Friedlingstein, P., Sitch, S., Hauck, J., Pongratz, J., Pickers, P. A., Korsbakken, J. I., Peters, G. P., Canadell, J. G., Arneth, A., Arora, V. K., Barbero, L., Bastos, A., Bopp, L., Chevallier, F., Chini, L. P., Ciais, P., Doney, S. C., … Zheng, B. (2018). Global Carbon Budget 2018. Earth System Science Data, 10(4), 2141–2194. https://doi.org/10.5194/essd-10-2141-2018
Betts, R. A., Jones, C. D., Knight, J. R., Keeling, R. F., Kennedy, J. J., Wiltshire, A. J., Andrew, R. M., & Aragao, L. (2018). A successful prediction of the record CO2 rise associated with the 2015/2016 El Nino. Philosophical Transactions of the Royal Society B-Biological Sciences, 373(1760). https://doi.org/10.1098/rstb.2017.0301
Rodenbeck, C., Zaehle, S., Keeling, R., & Heimann, M. (2018). History of El Nino impacts on the global carbon cycle 1957-2017: a quantification from atmospheric CO2 data. Philosophical Transactions of the Royal Society B-Biological Sciences, 373(1760). https://doi.org/10.1098/rstb.2017.0303
Nevison, C., Munro, D., Lovenduski, N., Cassar, N., Keeling, R., Krummel, P., & Tjiputra, J. (2018). Net community production in the Southern Ocean: Insights from comparing atmospheric potential oxygen to satellite ocean color algorithms and ocean models. Geophysical Research Letters, 45(19), 10549–10559. https://doi.org/10.1029/2018gl079575
Wagner, T. J. W., Dell, R. W., Eisenman, I., Keeling, R. F., Padman, L., & Severinghaus, J. P. (2018). Wave inhibition by sea ice enables trans-Atlantic ice rafting of debris during Heinrich events. Earth and Planetary Science Letters, 495, 157–163. https://doi.org/10.1016/j.epsl.2018.05.006
Resplandy, L., Keeling, R. F., Rodenbeck, C., Stephens, B. B., Khatiwala, S., Rodgers, K. B., Long, M. C., Bopp, L., & Tans, P. P. (2018). Revision of global carbon fluxes based on a reassessment of oceanic and riverine carbon transport. Nature Geoscience, 11(7), 504-+. https://doi.org/10.1038/s41561-018-0151-3
Graven, H., Fischer, M. L., Lueker, T., Jeong, S., Guilderson, T. P., Keeling, R. F., Bambha, R., Brophy, K., Callahan, W., Cui, X., Frankenberg, C., Gurney, K. R., LaFranchi, B. W., Lehman, S. J., Michelsen, H., Miller, J. B., Newman, S., Paplawsky, W., Parazoo, N. C., … Walker, S. J. (2018). Assessing fossil fuel CO2 emissions in California using atmospheric observations and models. Environmental Research Letters, 13(6). https://doi.org/10.1088/1748-9326/aabd43
Rodenbeck, C., Zaehle, S., Keeling, R., & Heimann, M. (2018). How does the terrestrial carbon exchange respond to inter-annual climatic variations? A quantification based on atmospheric CO2 data. Biogeosciences, 15(8), 2481–2498. https://doi.org/10.5194/bg-15-2481-2018
Le Quere, C., Andrew, R. M., Friedlingstein, P., Sitch, S., Pongratz, J., Manning, A. C., Korsbakken, J. I., Peters, G. P., Canadell, J. G., Jackson, R. B., Boden, T. A., Tans, P. P., Andrews, O. D., Arora, V. K., Bakker, D. C. E., Barbero, L., Becker, M., Betts, R. A., Bopp, L., … Zhu, D. (2018). Global Carbon Budget 2017. Earth System Science Data, 10(1), 405–448. https://doi.org/10.5194/essd-10-405-2018
Stephens, B. B., Long, M. C., Keeling, R. F., Kort, E. A., Sweeney, C., Apel, E. C., Atlas, E. L., Beaton, S., Bent, J. D., Blake, N. J., Bresch, J. F., Casey, J., Daube, B. C., Diao, M. H., Diaz, E., Dierssen, H., Donets, V., Gao, B. C., Gierach, M., … Watt, A. S. (2018). The O-2/N-2 Ratio and CO2 Airborne Southern Ocean Study. Bulletin of the American Meteorological Society, 99(2), 381–402. https://doi.org/10.1175/bams-d-16-0206.1
Graven, H., Allison, C. E., Etheridge, D. M., Hammer, S., Keeling, R. F., Levin, I., Meijer, H. A. J., Rubino, M., Tans, P. P., Trudinger, C. M., Vaughn, B. H., & White, J. W. C. (2017). Compiled records of carbon isotopes in atmospheric CO2 for historical simulations in CMIP6. Geoscientific Model Development, 10(12), 4405–4417. https://doi.org/10.5194/gmd-10-4405-2017