RheinBlick2050

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RheinBlick2050 is an environmental research project on the effects of regional climate change on the runoff behavior of the Rhine and its main tributaries (in this case: Moselle and Main ) in Central Europe . The project duration was from January 2008 to September 2010, initiated by and coordinated on behalf of the International Commission for the Hydrology of the Rhine Basin .

motivation

Regional climatic changes can lead to altered hydrometeorological regimes , which in turn affect the runoff of rivers . Depending on the vulnerability and sensitivity of natural or human-influenced systems, this has different effects on ecology , economy , infrastructure , transport , energy production or water management, etc. RheinBlick2050 deals exclusively with the effects. the changes in the physical system, not with adaptation or mitigation measures in connection with climate change. One of the characteristics of the project is to open up a joint, coordinated and cross-border view of changes in discharge, with institutions from almost all Rhine bordering states belonging to the project consortium. The various institutions make expert knowledge, data, methods, software tools and numerical model calculations available in a joint research infrastructure.

Data, methods and experiment design

The experiment design follows a typical study on the influence of climate change on hydrology : In a data synthesis, multi-model ensemble approach, a specific greenhouse gas emission scenario (here primarily SRES A1B) with various global climate models ( GCM ) (here mainly ECHAM5 and HadCM3) are used, which are regionalized via dynamic downscaling mH of a regional climate model (RCM). Based on such available data sets, after a comprehensive assessment and selection of a model chain, a correction of systematic errors in the daily air temperature and precipitation simulation results of the RCMs is carried out. These fields are ultimately used to drive the hydrological models used (mainly the HBV model). The results of the hydrological model calculations are used to analyze changes in the mean discharge as well as in low and high water diagnostics. Scenario bandwidths and trends are used to derive the changes and help communicate the results. The evaluations are carried out for selected gauges along the Rhine and its main tributaries ( Basel , Maxau , Worms , Kaub , Cologne , Lobith , Raunheim and Trier ).

Project consortium

  • Federal Institute for Hydrology (BfG) (Germany)
  • Federal Office for the Environment (FOEN) (Switzerland)
  • Cemagref (France)
  • Deltares (Netherlands)
  • Hessian State Office for Environment and Geology (HLUG) (Germany)
  • Center de Recherche Public - Gabriel Lippmann (CRP-GL) (Luxembourg), project coordination
  • Rijkswaterstaat (RWS) (Netherlands)
  • Koninklijk Nederlands Meteorological Instituut (KNMI) (Netherlands)

(alphabetical order)

See also

literature

  1. ↑ a b c K. Görgen, J. Beersma, G. Brahmer, H. Buiteveld, M. Carambia, O. de Keizer, P. Krahe, E. Nilson, R. Lammersen, C. Perrin, D. Volken: Assessment of Climate Change Impacts on Discharge in the Rhine River Basin: Results of the RheinBlick2050 Project. (PDF), International Commission for the Hydrology of the Rhine Basin (CHR), Lelystad, 2010, ISBN 978-90-70980-35-1 , p. 229, CHR report I-23. Archived from the original on March 21, 2012 Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (Accessed April 1, 2010). @1@ 2Template: Webachiv / IABot / www.chr-khr.org

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