OxNotes > GCSE Geography Notes > Rivers Terms - What happens as river measurements increase?
What happens as river measurements increase?
Bed load size - Decreases, bed load gets rounder
Width - There is more erosion
Depth - There is more water and more erosion.
Velocity - Pull of gravity and more water causes speed to increase.
Wetted Perimeter - More water, more erosion.
Bed load - Big rocks will not be carried as far. Erosion causes rocs to become smaller and rounder.
Gradient - Steepest in upper course and gets shallower and flatter downstream as
Cross sectional area - More water increases erosion.
Discharge - Water is getting faster and a bigger, smoother channel.
I believe the bed load sediment size decreases, the river will become more efficient at transporting water.
What can you say in your conclusion and evaluation? Examples
There were some limitations, many of which were out of our control during our investigation.
Width: Plants obstructing bank
River not perpendicular
Depth: Large rocks change river depth
Deep-mud alters measurements
River force bending ruler
Wetted Perimeter: Water dragging tape
Affected by depth limitations
Float time: Wind resistance
Aquatic plant drag/resistance
Reaction Times
Flow Velocity: Cloudy water obscuring vision
Bed load: Certain bed load unmeasurable (i.e. sand)
Width - There is more erosion
Depth - There is more water and more erosion.
Velocity - Pull of gravity and more water causes speed to increase.
Wetted Perimeter - More water, more erosion.
Bed load - Big rocks will not be carried as far. Erosion causes rocs to become smaller and rounder.
Gradient - Steepest in upper course and gets shallower and flatter downstream as
Cross sectional area - More water increases erosion.
Discharge - Water is getting faster and a bigger, smoother channel.
I believe the bed load sediment size decreases, the river will become more efficient at transporting water.
What can you say in your conclusion and evaluation? Examples
There were some limitations, many of which were out of our control during our investigation.
Width: Plants obstructing bank
River not perpendicular
Depth: Large rocks change river depth
Deep-mud alters measurements
River force bending ruler
Wetted Perimeter: Water dragging tape
Affected by depth limitations
Float time: Wind resistance
Aquatic plant drag/resistance
Reaction Times
Flow Velocity: Cloudy water obscuring vision
Bed load: Certain bed load unmeasurable (i.e. sand)
