Younger sediments more likely to be eroded by meandering rivers
Article first published online: 27 AUG 2013
©2013. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 94, Issue 35, page 312, 27 August 2013
How to Cite
2013), Younger sediments more likely to be eroded by meandering rivers, Eos Trans. AGU, 94(35), 312.(
- Issue published online: 27 AUG 2013
- Article first published online: 27 AUG 2013
- Cited By
- sediment storage time;
- meandering rivers;
- erosion hazard;
- sediment age
The duration of the journey that an individual grain of sand takes as it bounces its way down the length of a river is incredibly difficult, if not impossible, to determine. Finding the answer to that question could be useful because the amount of time that sediment spends in a river can affect how pollutants or other materials move through the system. At the bulk scale, sediment balance measurements, comparing the inputs and outflows of sediment, can be used to help calculate how much sediment is moving through a waterway. Figuring out the storage time of particular grains is more difficult because in meandering rivers individual grains of sediment deposited along the banks may be subsequently eroded years or even millennia later—whenever the river meanders back to where the sediment was deposited. Being able to calculate the total trip times of particular bits of sediment means being able to properly model this long-term deposition-storage mechanism.