Water temperature behaviour in the River Loire since 1976 and 1881 |
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| Authors: | Florentina Moatar Joël Gailhard |
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| Institution: | 1. Laboratoire de géologie des environnements aquatiques continentaux (GéEAC), UPRES EA 2100, université François-Rabelais, UFR des sciences et techniques, parc de Grandmont, 37200 Tours, France;2. Électricité de France, division technique générale, 21, av. de l''Europe, BP 41, 38040 Grenoble cedex 9, France |
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| Abstract: | Analysis of monthly mean river temperatures, recorded on an hourly basis in the middle reaches of the Loire since 1976, allows reconstruction by multiple linear regression of the annual, spring and summer water temperatures from equivalent information on air temperatures and river discharge. Since 1881, the average annual and summer temperatures of the Loire have risen by approximately 0.8?°C, this increase accelerating since the late 1980s due to the rise in air temperature and also to lower discharge rates. In addition, the thermal regime in the Orleans to Blois reach is considerably affected by the inflow of groundwater from the Calcaires de Beauce aquifer, as shown by the summer energy balance. To cite this article: F. Moatar, J. Gailhard, C. R. Geoscience 338 (2006). |
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| Keywords: | Water temperature Global warming Multiple regression analysis River Loire Influence of the Beauce aquifer Température de l'eau Réchauffement Régression Loire Influence de l'aquifère de Beauce |
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