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A distributed stream temperature model using high resolution temperature observations Público Deposited

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https://ir.library.oregonstate.edu/concern/articles/3b5919309

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Abstract
  • Distributed temperature data are used as input and as calibration data for an energy based temperature model of a first order stream in Luxembourg. A DTS (Distributed Temperature Sensing) system with a fiber optic cable of 1500m was used to measure stream water temperature with 1m resolution each 2 min. Four groundwater inflows were identified and quantified (both temperature and relative discharge). The temperature model calculates the total energy balance including solar radiation (with shading effects), longwave radiation, latent heat, sensible heat and river bed conduction. The simulated temperature is compared with the observed temperature at all points along the stream. Knowledge of the lateral inflow appears to be crucial to simulate the temperature distribution and conversely, that stream temperature can be used successfully to identify sources of lateral inflow. The DTS fiber optic is an excellent tool to provide this knowledge.
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  • Westhoff, M., Savenije, H., Luxemburg, W., Stelling, G., van de Giesen, N., Selker, J., . . . . (2007). A distributed stream temperature model using high resolution temperature observations. Hydrology and Earth System Sciences, 11(4), 1469-1480. doi: 10.5194/hess-11-1469-2007
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  • 11
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  • 4
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  • This research has been funded partly by the Delft Cluster project Veiligheid tegen overstromingen: CT04.30. Additional support for J. S. Selker’s participation was provided by the National Science Foundation under award 0447415. We thank the EPFL, the Swiss National Science Foundation (grants 109566 and 107910), the Oregon Experiment Station, the U.S. National Science Foundation (grant 0447415-EAR) for their financial support of this work.
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