APPLICATION OF HYDROINFORMATIC METHODS AND TECHNIQUES FOR COMPLEX SYSTEMS - QUANTIFICATION OF METHANE-MIGRATION PROCESSES FROM ABANDONED COAL MINES

摘要

This paper demonstrates the urgent necessity for a combined use of many powerful hydroinformatic methods and techniques to investigate and analyze complex processes in complex large-scale domains. This is explained for the quantification of methane-migration processes stemming from abandoned coal mines with the modeling system MUFTE-UG. The model set-up is carried out with a CAD system, a database and a mesh generator for elements of different dimensions. Uncertainties in the geology can be accounted for with geostatistical tools. Different model concepts, efficient discretization methods, fast solvers, parallel computers as well as advanced visualization are needed to understand the relevant processes and to prepare tools for future prognoses. Furthermore, optimization methods are helpful means for decision support, for example in optimizing methane-extraction measures.