Low flow

Water Shortage

Ongoing Research


Case Studies



  • Estimation of the Standardized Precipitation Index
    In May 2011it became evident that the first 5 months of this year were the driest period in many river basins since several decades of observations. To improve the monitoring concepts of water management agencies the SPI-Values were determined exemplarily for different river basins in Germany.

  • Exploring the possibilities for using the Standardized Precipitation Index for the reservoir operation
    With the support of the State Reservoir Administration of Saxony, the options to predict stochastically low flow periods are analysed. The aims of this study are stochastic relationships between the SPI for various time periods and observed subsequent low flow situations of different durations.

  • Assessment of the security of water supply from the Aabach Reservoir in North Rhine- Westfalia