Champollion, CédricGéosciences Montpellier, CNRS, Université Montpellier II, France
Crewell, SusanneInstitute for Geophysics and Meteorology, University of Cologne, Germany
Dick, GalinaHelmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Germany
Girolamo, Paolo DiDipartimento di Ingegneria e Fisica dell'Ambiente (DIFA), Università della Basilicata (UNIBAS), Potenza, Italy
Dorninger, ManfredDepartment of Meteorology and Geophysics, University of Vienna, Austria
Dufournet, YannDelft University of Technology, The Netherlands
Eigenmann, RafaelDepartment of Micrometeorology, University of Bayreuth, Germany
Engelmann, RonnyLeibniz Institute for Tropospheric Research, Leipzig, Germany
Flamant, CyrilleLaboratoire Atmosphères, Milieux, Observations Spatiales, CNRS/UPMC/UVSQ, Paris, France
Foken, ThomasDepartment of Micrometeorology, University of Bayreuth, Germany
Gorgas, TheresaDepartment of Meteorology and Geophysics, University of Vienna, Austria
Grzeschik, MatthiasInstitute of Physics and Meteorology (IPM), University of Hohenheim (UHOH), Stuttgart, Germany - Water - Earth System Science Research Institute, Tübingen, Germany
Handwerker, JanInstitute for Meteorology and Climate Research, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
Hauck, ChristianDepartment of Geosciences, University of Fribourg, Switzerland
Höller, HartmutDeutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre (IPA), Oberpfaffenhofen, Germany
Junkermann, WolfgangKarlsruhe Institute of Technology (KIT), IMK-IFU, Garmisch-Partenkirchen, Germany
Kalthoff, NorbertInstitute for Meteorology and Climate Research, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
Kiemle, ChristophDeutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre (IPA), Oberpfaffenhofen, Germany
Klink, StefanDeutscher Wetterdienst (DWD, German Meteorological Service), Offenbach, Germany
English
Within the framework of the international field campaign COPS (Convective and Orographically-induced Precipitation Study), a large suite of state-of-the-art meteorological instrumentation was operated, partially combined for the first time. This includes networks of in situ and remote-sensing systems such as the Global Positioning System as well as a synergy of multi-wavelength passive and active remote-sensing instruments such as advanced radar and lidar systems. The COPS field phase was performed from 01 June to 31 August 2007 in a low-mountain area in southwestern Germany/eastern France covering the Vosges mountains, the Rhine valley and the Black Forest mountains. The collected data set covers the entire evolution of convective precipitation events in complex terrain from their initiation, to their development and mature phase until their decay. Eighteen Intensive Observation Periods with 37 operation days and eight additional Special Observation Periods were performed, providing a comprehensive data set covering different forcing conditions. In this article, an overview of the COPS scientific strategy, the field phase, and its first accomplishments is given. Highlights of the campaign are illustrated with several measurement examples. It is demonstrated that COPS research provides new insight into key processes leading to convection initiation and to the modification of precipitation by orography, in the improvement of quantitative precipitation forecasting by the assimilation of new observations, and in the performance of ensembles of convection-permitting models in complex terrain.