25 research outputs found
Discharges of past flood events based on historical river profiles
International audienceThis paper presents a case study to estimate peak discharges of extreme flood events of Neckar River in south-western Germany during the 19th century. It was carried out within the BMBF research project RIMAX (Risk Management of Extreme Flood Events). The discharge estimations were made for the flood events of 1824 and 1882 based on historical cross profiles. The 1-D model Hydrologic Engineering Centers River Analysis System (HEC-RAS) was applied with different roughness coefficients. The results are compared (i) with contemporary historical calculations and (ii) in the case of a flood event in 1824 with the discharge simulation by the water balance model LARSIM (Large Area Runoff Simulation Model). These calculations are matched by the HEC-RAS simulation based on the standard roughness coefficients
Processing and analysing an ensemble of climate projections for the joint research project KLIWAS
The research programme KLIWAS, funded by the German Federal Ministry of
Transport, Building and Urban affairs is focussed on climate change and its
impacts on waterways and navigation for Germany in the 21th century. In
order to derive sound statements about the range of possible future climate
changes, KLIWAS use hydro-meteorological information derived from a wide
variety of global and regional climate models.
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In the framework of KLIWAS emphasis is taken on the quantification of
uncertainties in climate model output. Therefore, a 19-member ensemble of
climate model runs was used. On the basis of the SRES-scenario A1B the
probabilities of changes in air temperature, precipitation amount, global
radiation and several climate indices were computed for near (2021 to 2050)
and distant (2071–2100) scenario horizons.
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Furthermore, statistical downscaling techniques, including approved bias
correction methods, were used to provide a spatial high-resolution
sub-ensemble of eight climate model simulations for climate change impact
investigations
Langjaehrige Variabilitaet der aerodynamischen Oberflaechenrauhigkeit und Energiefluesse eines Kiefernwaldes in der suedlichen Oberrheinebene (Hartheim)
SIGLEAvailable from TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman