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CHAPTER 10: Introduction to the Lithosphere
 

(ac). Coastal and Marine Processes and Landforms: Beach Drift

Beach Drift

When incoming waves strike a shoreline beach drift can cause the movement of sediment along the shoreline. Beach drift begins when the waves reach the shore at an angle (not parallel) causing the swash and entrained sediment to travel obliquely up the beach (dark blue arows in the animation below). The returning backwash moves back to the ocean with a direction that is defined by the slope of the beach (light blue arows in the animation below). The differences in the direction of the swash and backwash cause a net longshore movement of sediment. In the diagram below, this movement is to the center of the beach.

 

 

Study Guide

 

Additional Readings

 
Internet Weblinks
 
Citation: Pidwirny, M. (2006). "Coastal and Marine Processes and Landforms: Beach Drift". Fundamentals of Physical Geography, 2nd Edition. Date Viewed. http://www.physicalgeography.net/fundamentals/10ac_5.html
 
 
 

 

Created by Dr. Michael Pidwirny & Scott Jones University of British Columbia Okanagan

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Copyright © 1999-2018 Michael Pidwirny

05/07/2009 9:54

 

Geography