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@ARTICLE{TzompaSosa:836763,
      author       = {Tzompa-Sosa, Z. A. and Mahieu, E. and Franco, B. and
                      Keller, C. A. and Turner, A. J. and Helmig, D. and Fried, A.
                      and Richter, D. and Weibring, P. and Walega, J. and
                      Yacovitch, T. I. and Herndon, S. C. and Blake, D. R. and
                      Hase, F. and Hannigan, J. W. and Conway, S. and Strong, K.
                      and Schneider, M. and Fischer, E. V.},
      title        = {{R}evisiting global fossil fuel and biofuel emissions of
                      ethane},
      journal      = {Journal of geophysical research / Atmospheres},
      volume       = {122},
      number       = {4},
      issn         = {2169-897X},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2017-05816},
      pages        = {2493 - 2512},
      year         = {2017},
      abstract     = {Recent measurements over the Northern Hemisphere indicate
                      that the long-term decline in the atmospheric burden of
                      ethane (C2H6) has ended and the abundance increased
                      dramatically between 2010 and 2014. The rise in C2H6
                      atmospheric abundances has been attributed to oil and
                      natural gas extraction in North America. Existing global
                      C2H6 emission inventories are based on outdated activity
                      maps that do not account for current oil and natural gas
                      exploitation regions. We present an updated global C2H6
                      emission inventory based on 2010 satellite-derived CH4
                      fluxes with adjusted C2H6 emissions over the U.S. from the
                      National Emission Inventory (NEI 2011). We contrast our
                      global 2010 C2H6 emission inventory with one developed for
                      2001. The C2H6 difference between global anthropogenic
                      emissions is subtle (7.9 versus 7.2 Tg yr−1), but the
                      spatial distribution of the emissions is distinct. In the
                      2010 C2H6 inventory, fossil fuel sources in the Northern
                      Hemisphere represent half of global C2H6 emissions and
                      $95\%$ of global fossil fuel emissions. Over the U.S.,
                      unadjusted NEI 2011 C2H6 emissions produce mixing ratios
                      that are $14–50\%$ of those observed by aircraft
                      observations (2008–2014). When the NEI 2011 C2H6 emission
                      totals are scaled by a factor of 1.4, the Goddard Earth
                      Observing System Chem model largely reproduces a regional
                      suite of observations, with the exception of the central
                      U.S., where it continues to underpredict observed mixing
                      ratios in the lower troposphere. We estimate monthly mean
                      contributions of fossil fuel C2H6 emissions to ozone and
                      peroxyacetyl nitrate surface mixing ratios over North
                      America of $~1\%$ and $~8\%,$ respectively.},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {243 - Tropospheric trace substances and their
                      transformation processes (POF3-243)},
      pid          = {G:(DE-HGF)POF3-243},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000396121200027},
      doi          = {10.1002/2016JD025767},
      url          = {https://juser.fz-juelich.de/record/836763},
}