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@ARTICLE{Khaykin:908557,
      author       = {Khaykin, Sergey M. and Moyer, Elizabeth and Krämer,
                      Martina and Clouser, Benjamin and Bucci, Silvia and Legras,
                      Bernard and Lykov, Alexey and Afchine, Armin and Cairo,
                      Francesco and Formanyuk, Ivan and Mitev, Valentin and
                      Matthey, Renaud and Rolf, Christian and Singer, Clare E. and
                      Spelten, Nicole and Volkov, Vasiliy and Yushkov, Vladimir
                      and Stroh, Fred},
      title        = {{P}ersistence of moist plumes from overshooting convection
                      in the {A}sian monsoon anticyclone},
      journal      = {Atmospheric chemistry and physics},
      volume       = {22},
      number       = {5},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2022-02681},
      pages        = {3169 - 3189},
      year         = {2022},
      abstract     = {The Asian monsoon anticyclone (AMA) represents one of the
                      wettest regions in the lower stratosphere (LS) and is a key
                      contributor to the global annual maximum in LS water vapour.
                      While the AMA wet pool is linked with persistent convection
                      in the region and horizontal confinement of the anticyclone,
                      there remain ambiguities regarding the role of
                      tropopause-overshooting convection in maintaining the
                      regional LS water vapour maximum. This study tackles this
                      issue using a unique set of observations from aboard the
                      high-altitude M55-Geophysica aircraft deployed in Nepal in
                      summer 2017 within the EU StratoClim project. We use a
                      combination of airborne measurements (water vapour, ice
                      water, water isotopes, cloud backscatter) together with
                      ensemble trajectory modelling coupled with satellite
                      observations to characterize the processes controlling water
                      vapour and clouds in the confined lower stratosphere (CLS)
                      of the AMA. Our analysis puts in evidence the dual role of
                      overshooting convection, which may lead to hydration or
                      dehydration depending on the synoptic-scale tropopause
                      temperatures in the AMA. We show that all of the observed
                      CLS water vapour enhancements are traceable to convective
                      events within the AMA and furthermore bear an isotopic
                      signature of the overshooting process. A surprising result
                      is that the plumes of moist air with mixing ratios nearly
                      twice the background level can persist for weeks whilst
                      recirculating within the anticyclone, without being subject
                      to irreversible dehydration through ice settling. Our
                      findings highlight the importance of convection and
                      recirculation within the AMA for the transport of water into
                      the stratosphere.},
      cin          = {IEK-7},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013},
      pnm          = {2112 - Climate Feedbacks (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2112},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000768258100001},
      doi          = {10.5194/acp-22-3169-2022},
      url          = {https://juser.fz-juelich.de/record/908557},
}