re cap of the hydrological cycle l.
Download
Skip this Video
Download Presentation
Re-Cap of the Hydrological Cycle

Loading in 2 Seconds...

play fullscreen
1 / 6

Re-Cap of the Hydrological Cycle - PowerPoint PPT Presentation


  • 105 Views
  • Uploaded on

Re-Cap of the Hydrological Cycle. Task 1: What are the main processes in the hydrological cycle? 2. How is a balance maintained within the hydrological cycle?. The River Course. The Upper Course. The River Channel:

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Re-Cap of the Hydrological Cycle' - laken


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
re cap of the hydrological cycle
Re-Cap of the Hydrological Cycle

Task 1:

  • What are the main processes in the hydrological cycle?

2. How is a balance maintained within the hydrological cycle?

the upper course
The Upper Course

The River Channel:

Discharge is low at this stage. The river is fed from throughflow and groundflow.

River energy is used for vertical erosion purposes – hydraulic action and corrosion

Velocity is quick

The load consists of pebbles, cobbles, stones, sands and gravel

The Surrounding Land:

V Shaped valley

Sides are steep

Physical weathering of the land – frost action – provides debris to be transported

the middle course
The Middle Course

The River Channel:

The channel is wider at this point

Discharge is higher

The load of the river consists of silts and clay sized particles, which are often deposited at this stage, transportation of coarse materials at this stage.

Due to the less steep land, lateral erosion occurs

Velocity is still rapid, as the smooth, deep river channel reduces friction.

The Surrounding Land;

Sides are not as steep as upper course

Lateral erosion broadens the valley floor creating a flood plain

the lower course
The Lower Course

The River Channel;

The channel is now very broad and deep

The rivers load is now only fine materials carried in suspension

Deposition dominates here

Erosion does however still occur

Velocity is slow

The Surrounding Land;

Due to erosion, the land is very flat at this stage

Large flood plain

slide6
Task 2:
  • Complete questions 2,3,5,6,8,9 and 10 of the worksheet.
  • Answer Question a – g on page 13 of the New Higher Geography textbook