is a module for computing one-dimensional water surface profiles. The standard version contains the computation module from the Institute of Hydraulic Engineering at the Technical University of Hamburg-Harburg - also referred to as PASCHE computation module. This module supports the newest methods and approaches which have been standardized in Germany for carrying out hydraulic computations for near-natural creaks and rivers and are summarized in the Technical Bulletins 1/1999 of BWK and 220/1991 of DVWK.