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@ARTICLE{Witte:834183,
      author       = {Witte, Jacquelyn C. and Thompson, Anne M. and Smit, Herman
                      G.J. and Fujiwara, Masatomo and Posny, Francoise and
                      Coetzee, Gert J. R. and Northam, Edward T. and Johnson,
                      Bryan J. and Sterling, Chance W. and Mohamad, Maznorizan and
                      Ogino, Shin-Ya and Jordan, Allen and da Silva, Francisco R.},
      title        = {{F}irst reprocessing of {S}outhern {H}emisphere
                      {AD}ditional {OZ}onesondes ({SHADOZ}) profile records
                      (1998-2015): 1. {M}ethodology and evaluation},
      journal      = {Journal of geophysical research / Atmospheres},
      volume       = {122},
      number       = {12},
      issn         = {2169-897X},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2017-04173},
      pages        = {6611–6636},
      year         = {2017},
      abstract     = {Electrochemical concentration cell ozonesonde measurements
                      are an important source of highly resolved vertical profiles
                      of ozone (O3) with long-term data records for deriving O3
                      trends, model development, satellite validation, and air
                      quality studies. Ozonesonde stations employ a range of
                      operational and data processing procedures, metadata
                      reporting, and instrument changes that have resulted in
                      inhomogeneities within individual station data records. A
                      major milestone is the first reprocessing of seven Southern
                      Hemisphere ADditional OZonesondes (SHADOZ) station
                      ozonesonde records to account for errors and biases in
                      operating/processing procedures. Ascension Island, Hanoi,
                      Irene, Kuala Lumpur, La Réunion, Natal, and Watukosek
                      station records all show an overall increase in O3 after
                      reprocessing. Watukosek shows the largest increase of 9.0 ±
                      2.1 Dobson Units (DU) in total column O3; Irene and Hanoi
                      show a 5.5 ± 2.5 DU increase, while remaining sites show
                      statistically insignificant enhancements. Negligible to
                      modest O3 enhancements are observed after reprocessing in
                      the troposphere (up to $8\%)$ and stratosphere (up to
                      $6\%),$ except at La Réunion for which the application of
                      background currents reduces tropospheric O3 (−2.1 ± 1.3
                      DU). Inhomogeneities due to ozonesonde/solution-type changes
                      at Ascension, Natal, and La Réunion are resolved with the
                      application of transfer functions. Comparisons with EP-TOMS,
                      Aura's Ozone Monitoring Instrument and Microwave Limb
                      Sounder (MLS) satellite O3 overpasses show an overall
                      improvement in agreement after reprocessing. Most
                      reprocessed data sets show a significant reduction in biases
                      with MLS at the ozone maximum region (50–10 hPa). Changes
                      in radiosonde/ozonesonde system and nonstandard solution
                      types can account for remaining discrepancies observed at
                      several sites when compared to satellites.},
      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:000405514000027},
      doi          = {10.1002/2016JD026403},
      url          = {https://juser.fz-juelich.de/record/834183},
}