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Geomorphology and sediment regimes of intermittent rivers and ephemeral streams

Jaeger, Kristin L., Sutfin, Nicholas A., Tooth, Stephen, Michaelides, Katerina and Singer, Michael 2017. Geomorphology and sediment regimes of intermittent rivers and ephemeral streams. In: Datry, Thibault, Bonada, Núria and Boulton, Andrew eds. Intermittent Rivers and Ephemeral Streams, Ecology and Management, Academic Press, p. 21. (10.1016/B978-0-12-803835-2.00002-4)

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Abstract

The geomorphology and sediment regimes of intermittent rivers and ephemeral streams (IRES) are extremely diverse, owing in large part to the substantial spatiotemporal variability of the associated hydrological regimes. We describe the geomorphological character and sediment transport processes along IRES within the context of four geomorphological zones—upland, piedmont, lowland, and floodout—to illustrate the underpinning longitudinal trends of sediment production, transfer, and deposition that exist at the landscape scale. Many geomorphological features of IRES tend to be spatially discontinuous as a result of extended no or low-flow conditions that are punctuated by high-magnitude flood events. Diversity of geomorphology and sediment regimes both within and between the four geomorphological zones therefore promotes ecological processes and patterns in IRES that can be very distinct from perennial river systems.

Item Type: Book Section
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Publisher: Academic Press
ISBN: 9780128038352
Date of First Compliant Deposit: 21 November 2017
Date of Acceptance: 10 January 2017
Last Modified: 29 Nov 2017 11:55
URI: http://orca.cf.ac.uk/id/eprint/106861

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