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@MISC{Lhnert:1047485,
      author       = {Löhnert, Ulrich and Ament, Felix and Platis, Andreas and
                      Sakradzija, Mirjana and Toporov, Maria and Ahlgrimm, Maike
                      and Beyrich, Frank and Bohn, Birger and Büchau, Yann and
                      Esters, Leonie and Handwerker, Jan and Helmstreit, Luise and
                      Knippertz, Peter and Marke, Tobias and Müller, Marcus and
                      Obermann-Hellhund, Anika and Oertel, Annika and Pospichal,
                      Bernhard and Pschera, Alexander and Rapmund, Anja and
                      Scheck, Leonhard and Schemann, Vera and Schween, Jan Herbert
                      and Singh, Jaydeep and Schnitt, Sabrina and Wieser, Andreas
                      and Haseneder-Lind, Rainer},
      title        = {{VITAL} {II} {C}oncept {P}aper: {V}ertical {P}rofiling of
                      the {T}roposphere: {I}nnovation, {O}ptimization and
                      {A}pplication {II}},
      reportid     = {FZJ-2025-04336},
      year         = {2025},
      abstract     = {The VITAL (Vertical profiling of the troposphere:
                      Innovation, opTimization and AppLication) concept is part of
                      the Hans Ertel Centre for Weather Research (HErZ) and
                      focuses on novel observations of the vertical structure of
                      the troposphere. It is a common, networking effort of four
                      HErZ projects, DWD observational and modeling experts as
                      well as different external partners. The concept consists of
                      two measurement campaigns: VITAL I and VITAL II. The VITAL
                      I campaign took place in August 2024 at the Jülich
                      Observatory for Cloud Evolution (JOYCE). It generated
                      near-surface and vertical profiling data sets in the ABL to
                      assess instruments and methods for the next-generation
                      German Meteorological Service (DWD) observational network,
                      including Uncrewed Aerial Systems (UAS), water vapor lidar
                      and microwave radiometer. VITAL I results are transferred to
                      VITAL II which is planned for 2026 and will take place from
                      June 1 – August 31 in the Cologne Bay region between the
                      west German cities of Cologne, Bonn and Aachen employing and
                      installing up to seven profiling sites. During this time,
                      first data from the Meteosat Third Generation Sounder
                      (MTG-S1) satellite will become available providing
                      continuous 3D observations of temperature and humidity over
                      large parts of Europe and Africa with a temporal resolution
                      of ~30 min. However, deficits will remain in observing the
                      atmospheric boundary layer (ABL). VITAL II will leverage the
                      use of these novel satellite sounder observations by
                      combining them with surface-based in-situ and remote sensing
                      observations to significantly enhance the observed
                      information content in the ABL.VITAL II also extends upon
                      the success of the FESSTVaL, a 2021 field experiment at
                      DWD’s Richard-Assmann-Observatory, which focused on the
                      meso-gama-scale (2-20km) providing a high-density surface
                      observation network paired with continuous, ground-based
                      atmospheric profiling at three distinct locations within 6
                      km of each other. VITAL II will extend profiling and dense
                      near-surface observations to the meso-beta-scale (20-200km).
                      Up to 50 surface stations of the updated autonomous cold
                      pool logger 2 (APOLLO 2.0) will be installed within Cologne
                      Bay. The planned observational setup, in synergy with the
                      MTG-S1 measurements, will provide important elements in
                      enhancing our understanding of the evolution of the stable
                      and convective ABL as well as convective cold pools. The
                      observations will be used for assessing and improving the
                      DWD Numerical Weather Prediction (NWP) model ICON land
                      surface and ABL parameterization schemes. In addition, data
                      assimilation experiments with the novel data are planned.},
      keywords     = {Atmospheric structure (Other) / Atmospheric humidity
                      (Other) / Atmospheric model (Other) / Atmospheric humidity
                      (Other) / Atmospheric turbulence (Other) / Atmospheric
                      process (Other) / Atmospheric sciences (Other)},
      cin          = {ICE-3},
      cid          = {I:(DE-Juel1)ICE-3-20101013},
      pnm          = {2111 - Air Quality (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2111},
      typ          = {PUB:(DE-HGF)4},
      doi          = {10.5281/ZENODO.17424652},
      url          = {https://juser.fz-juelich.de/record/1047485},
}