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Quantifying Methane and Ethane Emissions to the Atmosphere From Central and Western US Oil and Natural Gas Production Regions
  • Published Date:
    2018
  • Source:
    Journal of Geophysical Research-Atmospheres, 123(14), 7725-7740.
Filetype[PDF-4.72 MB]


Details:
  • Personal Author:
  • Description:
    We present atmospheric measurements of methane (CH4) and ethane (C2H6) taken aboard a National Oceanic and Atmospheric Administration WP-3D research aircraft in 2015 over oil- and natural gas-producing regions of the central and western United States. We calculate emission rates from the horizontal flux of CH4 and C2H6 in the planetary boundary layer downwind of five of these oil- and gas-producing regions: the Bakken in North Dakota, the Barnett in Texas, the Denver Basin in Colorado, the Eagle Ford in Texas, and the Haynesville in Texas and Louisiana. In general, we find that the enhancement of C2H6 relative to CH4 in the atmosphere is similar to their relative abundances in locally produced natural gas. For the Bakken and Barnett regions, both absolute CH4 emissions and the percentage of produced natural gas emitted to the atmosphere are consistent with previous studies. The percentage of produced natural gas emitted to the atmosphere was lower than in previous studies in the Denver Basin and the Haynesville regions, which may be due to a decrease in drilling activity, an increase in emission controls, or some combination thereof. Finally, we provide the first estimates of basin-wide emissions from the Eagle Ford region using in situ airborne data and find C2H6 emissions to be greater than those from the Bakken region. Emissions from the Bakken and Eagle Ford regions combined account for 20% of anthropogenic C2H6 emissions in North America.
  • DOI:
    http://dx.doi.org/10.1029/2018jd028622
  • Document Type:
    Journal Article
  • Collection(s):
    NOAA Cooperative Institutes
    Office of Oceanic and Atmospheric Research (OAR)
  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
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      2018
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      Description:
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      Raczka, B.; Biraud, S. C.; Ehleringer, J. R.; Lai, C. T.; Miller, J. B.; Pataki, D. E.; Saleska, S. R.; Torn, M. S.; Vaughn, B. H.; Wehr, R.; Bowling, D. R.;
      Published Date:
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      Description:
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      2018
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      Journal of Geophysical Research-Atmospheres, 123(15), 7950-7973.
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      Published Date:
      2018
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      Journal of Geophysical Research-Atmospheres, 123(17), 9813-9827.
      Description:
      Although urban NOx lifetimes have been examined extensively during summertime conditions, wintertime NOx chemistry has been comparatively less studied. We use measurements of NOx and its oxidation products from the aircraft-based WINTER (Wintertime I...
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      2016
      Source:
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      Description:
      Under certain conditions, secondary organic aerosol (SOA) particles can exist in the atmosphere in an amorphous solid or semi-solid state. To determine their relevance to processes such as ice nucleation or chemistry occurring within particles requir...
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      Source:
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      Description:
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      2016
      Source:
      Journal of Geophysical Research-Atmospheres, 121(12), 7430-7460.
      Description:
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      Published Date:
      2015
      Source:
      Atmospheric Chemistry and Physics, 15(19), 11411-11432.
      Description:
      The mandate of the Task Force Hemispheric Transport of Air Pollution (TF HTAP) under the Convention on Long-Range Transboundary Air Pollution (CLRTAP) is to improve the scientific understanding of the intercontinental air pollution transport, to quan...
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      2016
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      Journal of Geophysical Research-Atmospheres, 121(5), 2457-2475.
      Description:
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      2018
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      Description:
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      Personal Author:
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      2018
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      Atmosphere, 9(2), 18.
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      Personal Author:
      Dimdore-Miles, O. B.; Palmer, P. I.; Bruhwiler, L. P.;
      Published Date:
      2018
      Source:
      Atmospheric Chemistry and Physics, 18(24), 17895-17907.
      Description:
      We consider the utility of the annual inter-polar difference (IPD) as a metric for changes in Arctic emissions of methane (CH4). The IPD has been previously defined as the difference between weighted annual means of CH4 mole fraction data collected a...
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      Personal Author:
      Byju, P.; Dommenget, D.; Alexander, M. A.;
      Published Date:
      2018
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      Geophysical Research Letters, 45(15), 7683-7691.
      Description:
      Sea surface temperature anomalies (SSTA) in portions of the extratropics are known to recur from one winter to the next without persisting through the intervening summer. Previous studies identified only a limited number of midlatitude regions where ...
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      Richardson, K.; Asmutis-Silvia, R.; Drinkwin, J.; Gilardi, K. V. K.; Giskes, I.; Jones, G.; O'Brien, K.; Pragnell-Raasch, H.; Ludwig, L.; Antonelis, K.; Barco, S.; Henry, A.; Knowlton, A.; Landry, S.; Mattila, D.; MacDonald, K.; Moore, M.; Morgan, J.; Robbins, J.; van der Hoop, J.; Hogan, E.;
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      Marine Pollution Bulletin, 138, 222-229.
      Description:
      Abandoned, lost or discarded fishing gear (ALDFG) comprises a significant amount of global marine debris, with diverse impacts to marine environments, wildlife, and the fishing industry. Building evidence on ALDFG is critical to holistically understa...
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      2018
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      Description:
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      Personal Author:
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      2016
      Source:
      Journal of Geophysical Research-Atmospheres, 121(8), 4317-4332.
      Description:
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      2015
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      Atmos. Chem. Phys., 15(18), 10411-10433.
      File Type:
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      Heiblum, R. H.; Altaratz, O.; Koren, I.; Feingold, G.; Kostinski, A. B.; Khain, A. P.; Ovchinnikov, M.; Fredj, E.; Dagan, G.; Pinto, L.; Yaish, R.; Chen, Q.;
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      2016
      Source:
      Journal of Geophysical Research-Atmospheres, 121(11), 6336-6355.
      Description:
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