Search Results - "Michel, Sylvia E."

Strong Sensitivity of the Isotopic Composition of Methane to the Plausible Range of Tropospheric Chlorine by Strode, Sarah A, Wang, James S, Manyin, Michael, Duncan, Bryan, Hossaini, Ryan, Keller, Christoph A, Michel, Sylvia E., White, James W. C.

“…The C-13 isotopic ratio of methane, δC-13 of CH4, provides additional constraints on the CH4 budget to complement the constraints from CH4 observations. The…”
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Improved Global Wetland Carbon Isotopic Signatures Support Post-2006 Microbial Methane Emission Increase by Oh, Youmi, Zhuang, Qianlai, Welp, Lisa R, Liu, Licheng, Lan, Xin, Basu, Sourish, Dlugokencky, Edward J, Bruhwiler, Lori, Miller, John B, Michel, Sylvia E, Schwietzke, Stefan, Tans, Pieter, Ciais, Philippe, Chanton, Jeffrey P

“…Atmospheric concentrations of methane, a powerful greenhouse gas, have strongly increased since 2007. Measurements of stable carbon isotopes of methane can…”
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What do we know about the global methane budget? Results from four decades of atmospheric CH 4 observations and the way forward by Lan, Xin, Nisbet, Euan G, Dlugokencky, Edward J, Michel, Sylvia E

“…Atmospheric CH is arguably the most interesting of the anthropogenically influenced, long-lived greenhouse gases. It has a diverse suite of sources, each…”
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What do we know about the global methane budget? Results from four decades of atmospheric CH4 observations and the way forward by Lan, Xin, Nisbet, Euan G., Dlugokencky, Edward J., Michel, Sylvia E.

“…Atmospheric CH 4 is arguably the most interesting of the anthropogenically influenced, long-lived greenhouse gases. It has a diverse suite of sources, each…”
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Atmospheric data support a multi-decadal shift in the global methane budget towards natural tropical emissions by Drinkwater, Alice, Palmer, Paul I, Feng, Liang, Arnold, Tim, Lan, Xin, Michel, Sylvia E, Parker, Robert, Boesch, Hartmut

“…We use the GEOS-Chem global 3-D model and two inverse methods (the maximum a posteriori and ensemble Kalman filter) to infer regional methane (CH4) emissions…”
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Atmospheric methane and nitrous oxide: challenges alongthe path to Net Zero by Nisbet, Euan G, Dlugokencky, Edward J, Fisher, Rebecca E, France, James L, Lowry, David, Manning, Martin R, Michel, Sylvia E, Warwick, Nicola J

“…The causes of methane's renewed rise since 2007, accelerated growth from 2014 and record rise in 2020, concurrent with an isotopic shift to values more…”
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Quantification of fossil fuel CO2 from combined CO, δ13CO2 and Δ14CO2 observations by Kim, Jinsol, Miller, John B, Miller, Charles E, Lehman, Scott J, Michel, Sylvia E, Yadav, Vineet, Rollins, Nick E, Berelson, William M

“…We present a new method for partitioning observed CO2 enhancements (CO2xs) into fossil and biospheric fractions (Cff and Cbio) based on measurements of CO and…”
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Enhanced North American carbon uptake associated with El Niño by Hu, Lei, Andrews, Arlyn E, Thoning, Kirk W, Sweeney, Colm, Miller, John B, Michalak, Anna M, Dlugokencky, Ed, Tans, Pieter P, Shiga, Yoichi P, Mountain, Marikate, Nehrkorn, Thomas, Montzka, Stephen A, McKain, Kathryn, Kofler, Jonathan, Trudeau, Michael, Michel, Sylvia E, Biraud, Sébastien C, Fischer, Marc L, Worthy, Doug E J, Vaughn, Bruce H, White, James W C, Yadav, Vineet, Basu, Sourish, van der Velde, Ivar R

“…Long-term atmospheric CO mole fraction and δ CO observations over North America document persistent responses to the El Niño-Southern Oscillation. We estimate…”
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Evaluation of a field-deployable Nafion™-based air-drying system for collecting whole air samples and its application to stable isotope measurements of CO2 by Dipayan, Paul, Scheeren, Hubertus A, Jansen, Henk G, Kers, Bert A M, Miller, John B, Crotwell, Andrew M, Michel, Sylvia E, Gatti, Luciana V, Domingues, Lucas G, Correia, Caio S C, Neves, Raiane A L, Meijer, Harro A J, Peters, Wouter

“…Atmospheric flask samples are either collected at atmospheric pressure by opening a valve of a pre-evacuated flask or pressurized with the help of a pump to a…”
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A 21st-century shift from fossil-fuel to biogenic methane emissions indicated by ¹³CH by Schaefer, Hinrich, Fletcher, Sara E. Mikaloff, Veidt, Cordelia, Lassey, Keith R., Brailsford, Gordon W., Bromley, Tony M., Dlugokencky, Edward J., Michel, Sylvia E., Miller, John B., Levin, Ingeborg, Lowe, Dave C., Martin, Ross J., Vaughn, Bruce H., White, James W. C.

“…Between 1999 and 2006, a plateau interrupted the otherwise continuous increase of atmospheric methane concentration [CH₄] since preindustrial times. Causes…”
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Interlaboratory comparison of δ 13 C and δD measurements of atmospheric CH 4 for combined use of data sets from different laboratories by Umezawa, Taku, Brenninkmeijer, Carl A. M., Röckmann, Thomas, van der Veen, Carina, Tyler, Stanley C., Fujita, Ryo, Morimoto, Shinji, Aoki, Shuji, Sowers, Todd, Schmitt, Jochen, Bock, Michael, Beck, Jonas, Fischer, Hubertus, Michel, Sylvia E., Vaughn, Bruce H., Miller, John B., White, James W. C., Brailsford, Gordon, Schaefer, Hinrich, Sperlich, Peter, Brand, Willi A., Rothe, Michael, Blunier, Thomas, Lowry, David, Fisher, Rebecca E., Nisbet, Euan G., Rice, Andrew L., Bergamaschi, Peter, Veidt, Cordelia, Levin, Ingeborg

“…We report results from a worldwide interlaboratory comparison of samples among laboratories that measure (or measured) stable carbon and hydrogen isotope…”
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Very Strong Atmospheric Methane Growth in the 4 Years 2014–2017: Implications for the Paris Agreement by Nisbet, E. G., Manning, M. R., Dlugokencky, E. J., Fisher, R. E., Lowry, D., Michel, S. E., Myhre, C. Lund, Platt, S. M., Allen, G., Bousquet, P., Brownlow, R., Cain, M., France, J. L., Hermansen, O., Hossaini, R., Jones, A. E., Levin, I., Manning, A. C., Myhre, G., Pyle, J. A., Vaughn, B. H., Warwick, N. J., White, J. W. C.

“…Atmospheric methane grew very rapidly in 2014 (12.7 ± 0.5 ppb/year), 2015 (10.1 ± 0.7 ppb/year), 2016 (7.0 ± 0.7 ppb/year), and 2017 (7.7 ± 0.7 ppb/year), at…”
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Quantification of fossil fuel CO.sub.2 from combined CO, [delta].sup.13CO.sub.2 and Î.sup.14CO.sub.2 observations by Kim, Jinsol, Miller, John B, Miller, Charles E, Lehman, Scott J, Michel, Sylvia E, Yadav, Vineet, Rollins, Nick E, Berelson, William M

“…We present a new method for partitioning observed CO.sub.2 enhancements (CO.sub.2 xs) into fossil and biospheric fractions (C.sub.ff and C.sub.bio) based on…”
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Quantification of fossil fuel CO 2 from combined CO, δ 13 CO 2 and Δ 14 CO 2 observations by Kim, Jinsol, Miller, John B., Miller, Charles E., Lehman, Scott J., Michel, Sylvia E., Yadav, Vineet, Rollins, Nick E., Berelson, William M.

“…We present a new method for partitioning observed CO2 enhancements (CO2xs) into fossil and biospheric fractions (Cff and Cbio) based on measurements of CO and…”
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Methane Source Attribution in the UK Using Multi‐Year Records of CH4 and δ13C by Woolley Maisch, Ceres A., Fisher, Rebecca E., France, James L., Lowry, David, Lanoisellé, Mathias, Bell, Thomas G., Forster, Grant, Manning, Alistair J., Michel, Sylvia E., Ramsden, Alice E., Yang, Mingxi, Nisbet, Euan G.

“…Isotopic measurements of atmospheric methane are valuable for the verification of bottom‐up atmospheric emissions inventories. The balance of sources in…”
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Methane Source Attribution in the UK Using Multi‐Year Records of CH 4 and δ 13 C by Woolley Maisch, Ceres A., Fisher, Rebecca E., France, James L., Lowry, David, Lanoisellé, Mathias, Bell, Thomas G., Forster, Grant, Manning, Alistair J., Michel, Sylvia E., Ramsden, Alice E., Yang, Mingxi, Nisbet, Euan G.

“…Isotopic measurements of atmospheric methane are valuable for the verification of bottom‐up atmospheric emissions inventories. The balance of sources in…”
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Evaluation of a field-deployable Nafion™-based air-drying system for collecting whole air samples and its application to stable isotope measurements of CO 2 by Paul, Dipayan, Scheeren, Hubertus A., Jansen, Henk G., Kers, Bert A. M., Miller, John B., Crotwell, Andrew M., Michel, Sylvia E., Gatti, Luciana V., Domingues, Lucas G., Correia, Caio S. C., Neves, Raiane A. L., Meijer, Harro A. J., Peters, Wouter

“…Atmospheric flask samples are either collected at atmospheric pressure by opening a valve of a pre-evacuated flask or pressurized with the help of a pump to a…”
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Using [delta]13C-CH4 and [delta]D-CH4 to constrain Arctic methane emissions by Warwick, Nicola J, Cain, Michelle L, Fisher, Rebecca, France, James L, Lowry, David, Michel, Sylvia E, Nisbet, Euan G, Vaughn, Bruce H, White, James W C, Pyle, John A

“…We present a global methane modelling study assessing the sensitivity of Arctic atmospheric CH4 mole fractions, δ13C-CH4 and δD-CH4 to uncertainties in Arctic…”
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Using [delta].sup.13C-CH.sub.4 and [delta]D-CH.sub.4 to constrain Arctic methane emissions by Warwick, Nicola J, Cain, Michelle L, Fisher, Rebecca, France, James L, Lowry, David, Michel, Sylvia E, Nisbet, Euan G, Vaughn, Bruce H, White, James W. C, Pyle, John A

“…We present a global methane modelling study assessing the sensitivity of Arctic atmospheric CH.sub.4 mole fractions, [delta].sup.13 C-CH.sub.4 and…”
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Using δ 13 C-CH 4 and δD-CH 4 to constrain Arctic methane emissions by Warwick, Nicola J., Cain, Michelle L., Fisher, Rebecca, France, James L., Lowry, David, Michel, Sylvia E., Nisbet, Euan G., Vaughn, Bruce H., White, James W. C., Pyle, John A.

“…We present a global methane modelling study assessing the sensitivity of Arctic atmospheric CH4 mole fractions, δ13C-CH4 and δD-CH4 to uncertainties in Arctic…”
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