31. Januar 2012

New strategies for studying land-surface-atmosphere feedback processes

31. Januar 2012 16:00 Uhr bis 17:30 Uhr
Prof. Dr. rer. nat. Volker Wulfmeyer
Institut für Physik und Meteorologie, Universität Hohenheim
The understanding of land-surface-atmosphere feedback is a prerequisite for accurate climate projections and weather forecasting. For instance, incorrect representation of vegetation in models leads to temperature biases, which are of the same order of magnitude as the expected increase of temperature due to climate change. However, severe deficiencies in the modeling of the interaction of land-surface-vegetation properties with the atmospheric boundary layer still exist resulting in erroneous simulations of clouds and precipitation. In this presentation, an overview is given on the status of coupled modeling, process understanding, and advanced measurements. It is demonstrated that a significant progress can be expected by the design and performance of field campaigns based on a new generation of scanning active remote sensing instruments. These systems have been operated during the World Weather Research Programme (WWRP) Research and Development Project (RDP) Convective and Orographically-induced Precipitation Study (COPS) and the DFG Transregio 32. First results will be presented and discussed as well as their potential for improving process understanding and parameterizations will be highlighted. The presentation ends with a vision of future transdisciplinary research activities in Earth System Science.
Pfaffenwaldring 61, Raum U1.003 (MML), Universität Stuttgart
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