A distributed stream temperature model using high resolution temperature observations - 2007

Content Provider	Open Access Library (OALib)
Author	M. C. Westhoff H. H. G. Savenije W. M. J. Luxemburg G. S. Stelling N. C. van de Giesen J. S. Selker L. Pfister S. Uhlenbrook
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 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.
ISSN	10275606
Journal	Hydrology and Earth System Sciences (HESS) & Discussions (HESSD)
Publisher	Copernicus Publications
Publisher Date	2007-01-01
Access Restriction	Open
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Water Science and Technology