Best modeling practices in the application of the Directive 2000/60 in Greece

Abstract:- The main characteristics of the modeling procedure, especially these related to the application of the Water Framework Directive, are presented. These are (a) the building of models with sufficient degree of integration and (b) the requirement of calibration and verification of models with “high quality ” field data. The relationship between modeling and monitoring is emphasized with the presentation of the optimization of the design of monitoring networks. The main “elements ” of the water bodies are presented, focusing on the morphological and hydrodynamic “elements”. Methods are described for the calculation of these “elements”. Α methodology is presented for the investigation of water management scenarios with mathematical models. Various applications of this methodology in Greece are discussed. These include: calculation of the values and the reference conditions for various water quality “elements”, methods for facing an incident of accidental pollution in trans-boundary rivers or reservoirs used for water supply and controlling pollution in ground-waters