Class Notes (835,905)
Canada (509,489)
Geography (296)
GG101 (48)

GG101 Week 11 Lecture 2.docx

3 Pages
Unlock Document

James Hamilton

GG101 Week 11 Lecture 2 o fluvial  relating to, or occurring in a river o alluvium  sediments transported and deposited by streams o drainage basin (watershed)  spatial area occupied and drained by a river system o drainage divide  boundary between adjacent basins  Streamflow o discharge (Q)  volume of water passing a point in a channel per unit time o for a simple channel, discharge is the product of channel depth (d), width (w), and stream velocity (v)  Q = w*d*v o figure 14.33 o how is discharge measured?  Processes o in a given stream channel, as discharge (Q) increases there are also increases in stream width, depth and velocity o erosion  overall breaking down, picking up, and transportation of materials  involves a sequence of events:  detachment (hydraulic action and abrasion) o pulls some material off the bank (detached from its position at rest)  entrainment (function of velocity) o brings it into the flow  transport (several modes of transport) o sediments in a stream move by:  i) suspension  fine grain sediments suspended within flow  ii) saltation  sand grain moves through a series of jump/steps  iii) traction (rolling)  rolling along  iv) solution  deposition o deposits material somewhere else o particle deposition occurs when the flow velocity is reduced and the flow cannot keep the particle(s) in motion  Sediment Load o load is the amount of material the stream is moving over some time interval (could be seconds, days, years)  suspended load  amount being moved by suspension 
More Less

Related notes for GG101

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.