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| Titel |
Study of the sediment sources and fine-sediment storage in the Isábena River basin |
| VerfasserIn |
Jose Andrés López-Tarazón, Joan Estrany, Hugh Smith |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250074700
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| Zusammenfassung |
| Fluvial sediment transport interacts with different bio-physical processes of the river-bed and
can cause severe socio-economic impacts. The Isábena River basin (445 km2) is a clear
example of a fluvial system transporting huge amounts of sediment which has been proved as
one of the main causes of the Barasona reservoir siltation. To improve the knowledge of the
sediment transport of the basin, a pilot study on sediment sources and in-channel sediment
storage using a fingerprinting approach has been started. Sample analyses are based on 3
main tracing properties: 1) radionuclides (137Cs and 210Pbex); 2) geochemistry (elementary
metals); and 3) mineral-magnetics properties. It is foreseen that results provide information
on the relative contributions of each sediment source over the total basin’s sediment
transport at flood and seasonal scales, and over the connectivity of the sources with the
sediment transport which determine the sediment budget of the Barasona reservoir. |
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