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@ARTICLE{Stauffer:890233,
      author       = {Stauffer, Ryan M. and Thompson, Anne M. and Kollonige,
                      Debra E. and Witte, Jacquelyn C. and Tarasick, David W. and
                      Davies, Jonathan and Vömel, Holger and Morris, Gary A. and
                      Van Malderen, Roeland and Johnson, Bryan J. and Querel,
                      Richard R. and Selkirk, Henry B. and Stübi, Rene and Smit,
                      Herman G. J.},
      title        = {{A} {P}ost‐2013 {D}ropoff in {T}otal {O}zone at a {T}hird
                      of {G}lobal {O}zonesonde {S}tations: {E}lectrochemical
                      {C}oncentration {C}ell {I}nstrument {A}rtifacts?},
      journal      = {Geophysical research letters},
      volume       = {47},
      number       = {11},
      issn         = {1944-8007},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2021-00820},
      pages        = {e2019GL086791},
      year         = {2020},
      abstract     = {An international effort to improve ozonesonde data quality
                      and to reevaluate historical records has made significant
                      improvements in the accuracy of global network data.
                      However, between 2014 and 2016, ozonesonde total column
                      ozone (TCO; O3) at 14 of 37 regularly reporting stations
                      exhibited a sudden dropoff relative to satellite
                      measurements. The ozonesonde TCO drop is $3–7\%$ compared
                      to satellite and ground‐based TCO, and $5–10\%$ or more
                      compared to satellite stratospheric O3 profiles,
                      compromising the use of recent data for trends, although
                      they remain reliable for other uses. Hardware changes in the
                      ozonesonde instrument are likely a major factor in the O3
                      dropoff, but no single property of the ozonesonde explains
                      the findings. The bias remains in recent data. Research to
                      understand the dropoff is in progress; this letter is
                      intended as a caution to users of the data. Our findings
                      underscore the importance of regular ozonesonde data
                      evaluation.},
      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:000543387400063},
      doi          = {10.1029/2019GL086791},
      url          = {https://juser.fz-juelich.de/record/890233},
}