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| Titel |
Water temperature of Plynlimon streams |
| VerfasserIn |
D. T. Crisp |
| 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 ; 1, no. 3 ; Nr. 1, no. 3, S.535-540 |
| Datensatznummer |
250000196
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| Publikation (Nr.) |
 copernicus.org/hess-1-535-1997.pdf |
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| Zusammenfassung |
Water temperature data were collected from five stations in
the upper Severn system. Temperatures were compared between a stream with a 335 ha catchment
after it had flowed for c. 1.5 km through clear felled land and a stream with a 347 ha catchment
after it had flowed for c. 2.5 km through coniferous forest. The results suggest that the effect
of forest cover was to lower the annual mean water temperature by c. 0.4°C, mainly in
summer and through depression of both daily maxima and daily minima, though mainly the former. There
was no clear evidence of temperature elevation in the afforested stream in winter.
It is important to note that these conclusions depend
on several assumptions that cannot be substantiated objectively. There is some evidence that water temperatures
in some parts of the upper Severn system may be influenced by groundwater inputs. |
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