Abstract: Simulation models can be efficient tools, provided they are sufficiently validated. In the United States, the HELP model was developed to simulate the water balance of landfills, especially of liner systems. HELP version ...

Abstract: The water balances and the long-term performance of different landfill cover systems have been measured in situ in large-scale lysimeters on the landfill Hamburg-Georgswerder, Germany since 1988. The cover systems including ...