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6 - Dune Dynamics

from Part III - Dune Processes and Dynamics

Published online by Cambridge University Press:  03 March 2023

Nicholas Lancaster
Nicholas Lancaster
Affiliation:
Desert Research Institute, Nevada
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Summary

Changes in the rate and direction of sand transport in space and time give rise to patterns of erosion and deposition on dunes on a range of timescales that range from individual transport events, through seasonal changes in wind direction, to decadal and longer periods of dune growth, migration, and extension. Flow acceleration results in erosion of windward or stoss slopes. Flow separation in the lee gives rise to avalanching and deposition of sand, leading to dune migration. These processes are manifested in different ways on dunes of differing types, indicating a series of interactions between dune topography and processes.

Keywords

Erosiondepositionstoss slopelee slopeavalanchingcrescentic duneslinear dunesstar dunesdune migrationdune initiation
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Chapter
Information
Geomorphology of Desert Dunes , pp. 122 - 150
Publisher: Cambridge University Press
Print publication year: 2023

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  • Dune Dynamics
  • Nicholas Lancaster
  • Book: Geomorphology of Desert Dunes
  • Online publication: 03 March 2023
  • Chapter DOI: https://doi.org/10.1017/9781108355568.007
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  • Dune Dynamics
  • Nicholas Lancaster
  • Book: Geomorphology of Desert Dunes
  • Online publication: 03 March 2023
  • Chapter DOI: https://doi.org/10.1017/9781108355568.007
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Dune Dynamics
  • Nicholas Lancaster
  • Book: Geomorphology of Desert Dunes
  • Online publication: 03 March 2023
  • Chapter DOI: https://doi.org/10.1017/9781108355568.007
Available formats
×