Methods for Exploring Uncertainty in Groundwater Management Predictions

Models of groundwater systems help to integrate knowledge about the natural and human system covering different spatial and temporal scales, often from multiple disciplines, in order to address a range of issues of concern to various stakeholders. A model is simply a tool to express what we think we know. Uncertainty, due to lack of knowledge or natural variability, means that there are always alternative models that may need to be considered. This chapter provides an overview of uncertainty in models and in the definition of a problem to model, highlights approaches to communicating and using predictions of uncertain outcomes and summarises commonly used methods to explore uncertainty in groundwater management predictions. It is intended to raise awareness of how alternative models and hence uncertainty can be explored in order to facilitate the integration of these techniques with groundwater management. J.H.A. Guillaume (*) National Centre for Groundwater Research and Training & Integrated Catchment Assessment and Management (ICAM) Centre, Fenner School of Environment and Society, Australian National University, Building 48A, Linnaeus Way, Canberra, ACT 0200, Australia Water & Development Research Group (WDRG), Aalto University, Tietotie 1E, Espoo 02150, Finland e-mail: [email protected] R.J. Hunt United States Geological Survey, Wisconsin Water Science Center, 8505 Research Way, Middleton, WI 53562, USA Department of Geoscience, University of Wisconsin-Madison, 1215 West Dayton Street, Madison, WI 53705, USA e-mail: [email protected] # The Author(s) 2016 A.J. Jakeman et al. (eds.), Integrated Groundwater Management, DOI 10.1007/978-3-319-23576-9_28 711