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(Article of periodic en Anglais - 2008)

Document title

Historic and contemporary sediment transfer in an upland Pennine catchment, UK

Authors(s) and Affiliation(s)

HOLLIDAY V.J. (1) ; WARBURTON J. (1) ; HIGGITT D.L. (1) ;
(1) Dept. of Geography, Univ., Science Laboratories, Durham, ROYAUME-UNI

Abstract

A sediment budget for an upland catchment-reservoir system at Burnhope Reservoir, North Pennines, has been developed. This provides a framework for quantifying historic and contemporary sediment yields and drainage response to disturbance from climate change and human activities in the recent past. Bathymetric survey, core sampling, Cs 137 dating and aerial photographs have been used to assess sediment accumulation in the reservoir. Analysis of historical rainfall series for the detachment shows fluctuations in winter and summer rainfall patterns over the past 62 years. Periods of maximum variation occur during the summer drought events of the late 1970s, early 1980s and mid-1990s. Analysis of the particle size of core sediments highlights abrupt increases in sand-sized particles in the top 20 cm of the core. Based on the Cs 137 chronology, these layers were deposited from the late 1970s onwards and relate to these diverging rainfall records and rapidly fluctuating reservoir levels. This provides evidence of potential sediment reworking within the reservoir by rapid water-level rise after drought

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2008, vol. 33, no14 [pp. 2139-2155]

Bibliographic references : 2 p.

Collation : 8 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1660

Prodig - Bibliographie Géographique Internationale (BGI)
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