Sediment dynamics in the Mekong Basin – model setup and calibration
The hydrological model SWIM (Krysanova et al., 1998) was set up to assess the discharge and sediment dynamics of the Mekong basin down to the gauging station in Kratie/Cambodia. The model is driven by ERA-INTERIM reanalysis data (Dee et al., 2011) and APHRODITE (Yatagai et al., 2009) precipitation data. The model calibration and validation is, at a first step, based on the discharge and sediment data provided by the Mekong River Commission (MRC) and a multi-objective calibration aiming at optimal model performance in the time and frequency domain. With respect to the heterogeneous (temporal and spatial) data availability, different parameter regions are defined (see Fig. 1).