TY - JOUR

T1 - Integrated catchment modelling within a strategic planning and decision making process

T2 - Werra case study

AU - Dietrich, Jörg

AU - Funke, Markus

N1 - Funding Information: The work presented here would not have been possible without the contributions of the IWRM Werra project partners: University Duisburg-Essen, Hydrobiology (P. Podraza, I. Adrian, A. Benemann et al.), University Kassel (D. Borchardt), Ruhr-University Bochum (A. Schumann), Institute for Ecological Economy Research (IÖW), Berlin (U. Petschow, A. Dehnhardt, J. Hirschfeld) and WASY GmbH, Berlin (I. Michels, A. Becker, E. McCurdy). The State of Hesse, the Free State of Thuringia and the Weser River Basin Coordination Group provided a huge amount of data and expert knowledge. We acknowledge the financial support provided by the German Ministry of Education and Research (BMBF).

PY - 2009

Y1 - 2009

N2 - Integrated water resources management (IWRM) redefines conventional water management approaches through a closer cross-linkage between environment and society. The role of public participation and socio-economic considerations becomes more important within the planning and decision making process. In this paper we address aspects of the integration of catchment models into such a process taking the implementation of the European Water Framework Directive (WFD) as an example. Within a case study situated in the Werra river basin (Central Germany), a systems analytic decision process model was developed. This model uses the semantics of the Unified Modeling Language (UML) activity model. As an example application, the catchment model SWAT and the water quality model RWQM1 were applied to simulate the effect of phosphorus emissions from non-point and point sources on water quality. The decision process model was able to guide the participants of the case study through the interdisciplinary planning and negotiation of actions. Further improvements of the integration framework include tools for quantitative uncertainty analyses, which are crucial for real life application of models within an IWRM decision making toolbox. For the case study, the multi-criteria assessment of actions indicates that the polluter pays principle can be met at larger scales (sub-catchment or river basin) without significantly compromising cost efficiency for the local situation.

AB - Integrated water resources management (IWRM) redefines conventional water management approaches through a closer cross-linkage between environment and society. The role of public participation and socio-economic considerations becomes more important within the planning and decision making process. In this paper we address aspects of the integration of catchment models into such a process taking the implementation of the European Water Framework Directive (WFD) as an example. Within a case study situated in the Werra river basin (Central Germany), a systems analytic decision process model was developed. This model uses the semantics of the Unified Modeling Language (UML) activity model. As an example application, the catchment model SWAT and the water quality model RWQM1 were applied to simulate the effect of phosphorus emissions from non-point and point sources on water quality. The decision process model was able to guide the participants of the case study through the interdisciplinary planning and negotiation of actions. Further improvements of the integration framework include tools for quantitative uncertainty analyses, which are crucial for real life application of models within an IWRM decision making toolbox. For the case study, the multi-criteria assessment of actions indicates that the polluter pays principle can be met at larger scales (sub-catchment or river basin) without significantly compromising cost efficiency for the local situation.

KW - Activity model

KW - Catchment model

KW - Ecological quality

KW - Integrated water resources management

KW - Multi-criteria decision analysis

KW - Phosphorus

UR - http://www.scopus.com/inward/record.url?scp=65649106669&partnerID=8YFLogxK

U2 - 10.1016/j.pce.2008.11.001

DO - 10.1016/j.pce.2008.11.001

M3 - Article

AN - SCOPUS:65649106669

VL - 34

SP - 580

EP - 588

JO - Physics and chemistry of the earth

JF - Physics and chemistry of the earth

SN - 1474-7065

IS - 8-9

ER -