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Information - HS22 River and stream temperature: dynamics, processes, models and implications
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Event Information |
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Stream temperature is an important and highly sensitive variable affecting physical, chemical and biological processes. It is particularly important for salmonids and other freshwater fish, which cannot regulate their body temperature. Stream temperature is controlled by dynamic energy/ heat and hydrological fluxes, with land and water management impacting upon these drivers and modifying river thermal characteristics. The impact of extreme stream temperature upon river ecology and society was brought into sharp focus last summer when fish kills were reported across Europe, and power stations in France, Germany and Spain were unable to generate as effluent could not be discharged without exceeding temperature thresholds for river biota. Investigation of the spatial and temporal scales at which stream temperature varies and identification of the key controls on thermal behaviour is vital to understanding and predicting temperature variability and, in turn, managing many aspects of land-use, water resources and freshwater ecology.
This session invites papers on the following topics; and it seeks to promote scientific exchange between disciplines (climate/ meteorology-hydrology-ecology) and identify current knowledge gaps:
(1) Water column and streambed (hyporheic) temperature dynamics in space and time
(2) Stream heat exchange/ energy balance processes
(3) The role of hydrological fluxes (including groundwater-surface water interactions) in determining stream temperature
(4) Modelling (statistical and numerical) of stream temperature
(5) Human impacts upon, and management of, stream temperature
(6) Influence of stream temperature upon instream and riparian ecology
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