% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Plaza:904132,
      author       = {Plaza, Nuria Pilar and Podglajen, Aurélien and
                      Peña-Ortiz, Cristina and Ploeger, Felix},
      title        = {{P}rocesses influencing lower stratospheric water vapour in
                      monsoon anticyclones: insights from {L}agrangian modelling},
      journal      = {Atmospheric chemistry and physics},
      volume       = {21},
      number       = {12},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2021-05702},
      pages        = {9585 - 9607},
      year         = {2021},
      abstract     = {We investigate the influence of different chemical and
                      physical processes on the water vapour distribution in the
                      lower stratosphere (LS), in particular in the Asian and
                      North American monsoon anticyclones (AMA and NAMA,
                      respectively). Specifically, we use the chemistry transport
                      model CLaMS to analyse the effects of large-scale
                      temperatures, methane oxidation, ice microphysics, and
                      small-scale atmospheric mixing processes in different model
                      experiments. All these processes hydrate the LS and,
                      particularly, the AMA. While ice microphysics has the
                      largest global moistening impact, it is small-scale mixing
                      which dominates the specific signature in the AMA in the
                      model experiments. In particular, the small-scale mixing
                      parameterization strongly contributes to the water vapour
                      transport to this region and improves the simulation of the
                      intra-seasonal variability, resulting in a better agreement
                      with the Aura Microwave Limb Sounder (MLS) observations.
                      Although none of our experiments reproduces the spatial
                      pattern of the NAMA as seen in MLS observations, they all
                      exhibit a realistic annual cycle and intra-seasonal
                      variability, which are mainly controlled by large-scale
                      temperatures. We further analyse the sensitivity of these
                      results to the domain-filling trajectory set-up, here-called
                      Lagrangian trajectory filling (LTF). Compared with MLS
                      observations and with a multiyear reference simulation using
                      the full-blown chemistry transport model version of CLaMS,
                      we find that the LTF schemes result in a drier global LS and
                      in a weaker water vapour signal over the monsoon regions,
                      which is likely related to the specification of the lower
                      boundary condition. Overall, our results emphasize the
                      importance of subgrid-scale mixing and multiple transport
                      pathways from the troposphere in representing water vapour
                      in the AMA.},
      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:000668691200001},
      doi          = {10.5194/acp-21-9585-2021},
      url          = {https://juser.fz-juelich.de/record/904132},
}