Describe the Hjulström curve.

The critical erosion velocity line shows the minimum velocity needed to transport and erode a particle. Common sense tells us that the larger the particle, the more energy it needs to pick it up and be eroded, however there is one exception to this rule. Clay particles are microscopic, flat platelets that tend to stick to each other, and thus they need a relatively high velocity to pick them up and erode them. The mean settling velocity or critical deposition velocity line shows the velocity at which a sediment particle drops to the riverbed. In between these two lines show the velocities of where sediment will be transported, thus the lines split the graph into three sections-erosion, transportation and deposition.

Answered by Hayley F. Geography tutor

14452 Views

See similar Geography A Level tutors

Related Geography A Level answers

All answers ▸

Outline the fight or flight response


Assess the statement that globalisation produces as many losers as it does winners 12 marks)


What is the geographical definition of globalisation?


Outline the impact of temperature variation on weathering processes in hot deserts.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences