The HD(CP)2 Observational Prototype Experiment HOPE – An Overview
Andreas Macke1, Patric Seifert1, Holger Baars1, Christoph Beekmans2, Andreas Behrendt3, Birger Bohn4, Johannes Bühl1, Susanne Crewell7, Thomas Damian8, Hartwig Deneke1, Sebastian Düsing1, Andreas Foth9, Paolo Di Girolamo10, Eva Hammann3, Rieke Heinze5,6, Anne Hirsikko4,13, John Kalisch1,11, Norbert Kalthoff8, Stefan Kinne5, Martin Kohler8, Ulrich Löhnert7, Bomidi Lakshmi Madhavan1,14, Vera Maurer8, Shravan Kumar Muppa3, Jan Schween7, Ilya Serikov5, Holger Siebert1, Clemens Simmer2, Florian Späth3, Sandra Steinke7, Katja Träumner8,12, Birgit Wehner1, Andreas Wieser8, Volker Wulfmeyer3, and Xinxin Xie21Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, Germany 2Meteorological Institute, University of Bonn, Bonn, Germany 3Institute of Physics and Meteorology (IPM), University of Hohenheim, Stuttgart, Germany 4Institute of Energy and Climate Research (IEK-8), Forschungszentrum Jülich GmbH (FZJ), Jülich, Germany 5Max-Planck-Institut für Meteorologie (MPIM), Hamburg, Germany 6Institut für Meteorologie und Klimatologie, Leibniz Universität Hannover, Hannover, Germany 7Institute for Geophysics and Meteorology (IGMK), University of Cologne, Cologne, Germany 8Institute of Meteorology and Climate Research – Troposphere Research (IMK-TRO), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany 9Leipzig Institute of Meteorology, University of Leipzig, Leipzig, Germany 10Scuola di Ingegneria, Università degli Studi della Basilicata, Potenza, Italy 11Department of Energy and Semiconductor Research, Institute of Physics – Oldenburg University, Oldenburg, Germany 12NDT Global GmbH & Co. KG, Stutensee, Germany 13Finnish Meteorological Institute, Helsinki, Finland 14Department of Marine Sciences, Goa University, Goa, India
Received: 08 Nov 2016 – Accepted for review: 10 Nov 2016 – Discussion started: 21 Nov 2016
Abstract. The "HD(CP)2 Observational Prototype Experiment" (HOPE) was executed as a major 2-month field experiment in Jülich, Germany, performed in April and May 2013, followed by a smaller campaign in Melpitz, Germany in September 2013. HOPE has been designed to provide a critical evaluation of the new German community atmospheric Icosahedral non-hydrostatic (ICON) model at the scale of the model simulations and further to provide information on land-surface-atmospheric boundary layer exchange, cloud and precipitation processes as well as on sub-grid variability and microphysical properties that are subject to parameterizations. HOPE focuses on the onset of clouds and precipitation in the convective atmospheric boundary layer. The paper summarizes the instrument set-ups, the intensive observation periods as well as example results from both campaigns.
HOPE-Jülich instrumentation included a radio sounding station, 4 Doppler lidars, 4 Raman lidars (3, 3, and 4 of these provide temperature, water vapor, and particle backscatter data, respectively), 1 water vapour differential absorption lidar, 3 cloud radars, 5 microwave radiometers, 3 rain radars, 6 sky imagers, 99 pyranometers, and 5 Sun photometers operated in synergy at different supersites. The HOPE-Melpitz campaign combined ground-based remote sensing of aerosols and clouds with helicopter- and balloon-based in-situ observations in the atmospheric column and at the surface.
HOPE provided an unprecedented collection of atmospheric dynamical, thermodynamical, and micro- and macrophysical properties of aerosols, clouds and precipitation with high spatial and temporal resolution within a cube of approximately 10 × 10 × 10 km3. HOPE data will significantly contribute to our understanding of boundary layer dynamics and the formation of clouds and precipitation. The datasets are made available through a dedicated data portal.
Macke, A., Seifert, P., Baars, H., Beekmans, C., Behrendt, A., Bohn, B., Bühl, J., Crewell, S., Damian, T., Deneke, H., Düsing, S., Foth, A., Di Girolamo, P., Hammann, E., Heinze, R., Hirsikko, A., Kalisch, J., Kalthoff, N., Kinne, S., Kohler, M., Löhnert, U., Madhavan, B. L., Maurer, V., Muppa, S. K., Schween, J., Serikov, I., Siebert, H., Simmer, C., Späth, F., Steinke, S., Träumner, K., Wehner, B., Wieser, A., Wulfmeyer, V., and Xie, X.: The HD(CP)2 Observational Prototype Experiment HOPE – An Overview, Atmos. Chem. Phys. Discuss., doi:10.5194/acp-2016-990, in review, 2016.