2022
DOI: 10.5194/hess-26-1063-2022
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Future water temperature of rivers in Switzerland under climate change investigated with physics-based models

Abstract: Abstract. River ecosystems are highly sensitive to climate change and projected future increase in air temperature is expected to increase the stress for these ecosystems. Rivers are also an important socio-economic factor impacting, amongst others, agriculture, tourism, electricity production, and drinking water supply and quality. In addition to changes in water availability, climate change will impact river temperature. This study presents a detailed analysis of river temperature and discharge evolution ove… Show more

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Cited by 32 publications
(15 citation statements)
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References 102 publications
(121 reference statements)
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“…Several previous studies have predicted the discharge and water temperature of streams in snowy cold regions [7,8,10,20] using physics-based models that take snow accumulation processes into account, but these studies did not focus on differences in the behavior of water temperature depending on the geological conditions. Leach and Moore [20] used a sensitivity analysis approach with a physics-based model to examine the extent to which future water temperature increases vary with the magnitude of the groundwater contribution to stream flow, but they did not directly address differences in the water temperature response due to geologic factors.…”
Section: Discussionmentioning
confidence: 99%
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“…Several previous studies have predicted the discharge and water temperature of streams in snowy cold regions [7,8,10,20] using physics-based models that take snow accumulation processes into account, but these studies did not focus on differences in the behavior of water temperature depending on the geological conditions. Leach and Moore [20] used a sensitivity analysis approach with a physics-based model to examine the extent to which future water temperature increases vary with the magnitude of the groundwater contribution to stream flow, but they did not directly address differences in the water temperature response due to geologic factors.…”
Section: Discussionmentioning
confidence: 99%
“…In recent decades, increases in stream water temperature have been observed in regions worldwide [1][2][3][4][5]. These are expected to continue increasing in the future with climate change [6][7][8][9][10]. Changes in the timing and amount of snowmelt contribute to changes in water temperature in streams in snowy cold regions [10,11].…”
Section: Introductionmentioning
confidence: 99%
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“…Despite the fact that mechanistic models require numerical techniques for solving the governing equations, they are irreplaceable in studies involving spatially distributed processes (Paniconi and Putti, 2015). Currently, mechanistic models are gaining increasing interest in studies related to climate change (Michel et al, 2022). These models capture real physical processes, and these processes are not likely to change due to climate change stresses.…”
Section: Modeling-based Approaches For Water Resources Problemmentioning
confidence: 99%
“…Rising global air temperatures are altering thermal regimes of streams with major implications for physical, chemical and biological processes (Hannah & Garner, 2015;Michel et al, 2022;Van Vliet & Zwolsman, 2008) Stream water temperature increases in high latitude regions are more pronounced and rapid than anywhere else in the world (Post et al, 2019), hence thermal regimes in polar streams are currently undergoing rapid perturbations that require urgent study (Blaen et al, 2013;Docherty et al, 2019;Park et al, 2017).…”
mentioning
confidence: 99%