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| Titel |
A distributed stream temperature model using high resolution temperature observations |
| VerfasserIn |
M. C. Westhoff, H. H. G. Savenije, W. M. J. Luxemburg, G. S. Stelling, N. C. Giesen, J. S. Selker, L. Pfister, S. Uhlenbrook |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 11, no. 4 ; Nr. 11, no. 4 (2007-07-30), S.1469-1480 |
| Datensatznummer |
250009401
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| Publikation (Nr.) |
 copernicus.org/hess-11-1469-2007.pdf |
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| Zusammenfassung |
| 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 1500 m
was used to measure stream water temperature with 1 m 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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