In this project a global assessment of hydrological effects of climate change has been conducted. To this end, data from an ensemble of 12 global climate models (GCM) was used to drive the global hydrological model PCRGLOB-WB (van Beek 2007). River discharge was calculated with the hydrological model for the IPCC SRES scenarios A1B and A2. Change in discharge was calculated relative to the control experiment 20CM3.

Results and description of this study can be found in:

F.C. Sperna Weiland, L.P.H. van Beek, J.C.J. Kwadijk and M.F.P Bierkens, 2010. Global patterns of change in runoff regimes for 2100, submitted to Climatic Change

A discussion of the usability of GCM data for calculation of global runoff can be found in:

F.C. Sperna Weiland, L.P.H. van Beek, J.C.J. Kwadijk and M.F.P Bierkens, 2010. The ability of a GCM-forced hydrological model to reproduce global discharge variability, published in HESS

Data

In order to enable further research based on this study, results of the hydrological model runs are provided here: Hydrological scenario data.

In addition the meterological forcing data used in this study can be downloaded from the data portal of the Program for Climate Model Diagnosis and Intercomparison: PCMDI data-portal. And from the data distribution centre of the Intergovernmental Panel on Climate Change: IPCC data-portal.

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