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Climate 2016, 4(3), 39;

Hydrological Climate Change Impact Assessment at Small and Large Scales: Key Messages from Recent Progress in Sweden

Research & Development (hydrology), Swedish Meteorological and Hydrological Institute, 601 76 Norrköping, Sweden
Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, 97187 Luleå, Sweden
Rossby Centre, Swedish Meteorological and Hydrological Institute, 601 76 Norrköping, Sweden
Department of Water Resources Engineering, Lund University, Box 118, 221 00 Lund, Sweden
Author to whom correspondence should be addressed.
Academic Editors: Daniele Bocchiola, Guglielmina Diolaiuti and Claudio Cassardo
Received: 1 April 2016 / Revised: 29 July 2016 / Accepted: 29 July 2016 / Published: 24 August 2016
(This article belongs to the Special Issue Impact of Climate Change on Water Resources)
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Hydrological climate change impact assessment is generally performed by following a sequence of steps from global and regional climate modelling, through data tailoring (bias-adjustment and downscaling) and hydrological modelling, to analysis and impact assessment. This “climate-hydrology-assessment chain” has been developed with a primary focus on applicability to a medium-sized rural basin, which has been and still is the main type of domain investigated in this context. However, impact assessment is to an increasing degree being performed at scales smaller or larger than the medium-sized rural basin. Small-scale assessment includes e.g., impacts on solute transport and urban hydrology and large-scale assessment includes e.g., climate teleconnections and continental modelling. In both cases, additional complexity is introduced in the process and additional demands are placed on all components involved, i.e., climate and hydrology models, tailoring methods, assessment principles, and tools. In this paper we provide an overview of recent progress with respect to small- and large-scale hydrological climate change impact assessment. In addition, we wish to highlight some key issues that emerged as a consequence of the scale and that need further attention from now on. While we mainly use examples from work performed in Europe for illustration, the progress generally reflects the overall state of the art and the issues considered are of a generic character. View Full-Text
Keywords: future hydrology; modelling; precipitation; water quality future hydrology; modelling; precipitation; water quality

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Olsson, J.; Arheimer, B.; Borris, M.; Donnelly, C.; Foster, K.; Nikulin, G.; Persson, M.; Perttu, A.-M.; Uvo, C.B.; Viklander, M.; Yang, W. Hydrological Climate Change Impact Assessment at Small and Large Scales: Key Messages from Recent Progress in Sweden. Climate 2016, 4, 39.

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