Start and end of bedload transport in gravel-bed streams

Details Start and end of bedload transport in gravel-bed streams Start and end of bedload transport in gravel-bed streams

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3804401t&link_type=abstract

Geophysical Research Letters, Volume 38, Issue 4, CiteID L04401

Physics

1

Hydrology: Sediment Transport (4558), Hydrology: Geomorphology: Fluvial (1625)

Scientific paper

The threshold of incipient bedload motion, expressed either as a critical force or as a critical water discharge, is a key parameter in bedload transport prediction. Measuring the threshold of motion is difficult, and reliable data from natural streams are rare. By recording the vibrations triggered by bedload particles when moving over a steel plate mounted in the channel bed, we determined the time at start and end of bedload transport in four streams, where discharge is continuously monitored. The threshold discharge scatters over approximately one order of magnitude for each stream, reinforcing previous observations that critical discharge is characterized by a distribution of values. We interpret a strong correlation between the discharge at the start of transport and the discharge at the end of transport of the previous event to reflect temporal changes in bed structure and consequent effects on the driving and resisting forces acting on the bed.

Affiliated with

Also associated with

No associations

Rating

Start and end of bedload transport in gravel-bed streams does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Start and end of bedload transport in gravel-bed streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Start and end of bedload transport in gravel-bed streams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1120492