Chapter 2.1 - Geomorphology and Sediment Regimes of Intermittent Rivers and Ephemeral Streams

Kristin L. Jaeger, Nicholas A. Sutfin, Stephen Tooth, Katerina Michaelides, Michael Singer

Research output: Chapter in Book/Report/Conference proceedingChapter

43 Citations (SciVal)

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
Original languageEnglish
Title of host publicationIntermittent Rivers and Ephemeral Streams
Subtitle of host publicationEcology and Management
EditorsThibault Datry, Núria Bonada, Andrew J. Boulton
PublisherAcademic International Press
Pages21-49
Number of pages29
ISBN (Print)978-0128038352, 0128038357
DOIs
Publication statusPublished - 19 Jul 2017

Keywords

  • channel morphology
  • floodplain morphology
  • hydrology
  • process domains
  • geomorphological zones
  • sediment transport

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