STAKEHOLDER GROUP CONSENSUS BASED ON MULTI-ASPECT HYDROLOGY DECISION MAKING

Catastrophic impact of floods is the result of an interaction between extreme hydrologic events and environmental, social and economic processes. Therefore, an integrated approach to flood management plays an important role in sustainable development. Such an approach requires a team comprising experts from the fields of hydrology and water resources, nature protection, risk management, human security, municipalities, economics and land use. The estimations of experts can serve for finding a solution to specific YES/NO problems and for estimating the value of specific attributes or parameters. In order to measure and evaluate the level of agreement between experts, a newly developed method for assessing the level of agreement and the value of tau-agreement, based on the Shannon theory of entropy, was applied. The use of such fuzzy-group-agreement decision making procedure, involving a broad range of stakeholders, is illustrated by the Flood Control Case Study, Zarosice, Czech Republic. In the case study of the Zdrava Voda catchment, where a part of the urbanised territory of the Zarosice village suffered from periodical flooding, a group of experts analysed the catchment data, focusing particularly on designed rainfall data. The KINFIL model was subsequently applied.