The Eden Basin (Case Study) Flashcards
What is the location of the Eden Basin?
North West England.
Between the mountains of the Lake District and the Pennines.
What is the river Edens source?
The Pennine hills.
What is the weather around the Eden Basin?
Extreme weather that often causes flooding downstream.
What is the precipitation like near the Eden Basin?
Higher than national average due to the relief of the area.
What type of rainfall occurs at the Eden Basin?
Orographic rainfall.
Describe the shape of the Eden Basin. How does this affect water variations?
Long and narrow increasing lag time (water takes longer to reach the basin)
The slopes are steep which increases peak discharge.
What types of rock make up the Eden basin? How does this affect water variation.
High ground= igneous (impermeable)
Basin itself= limestone and sandstone (permeable)
=quick infiltration and less surface runoff
=more lag time and ground store increases.
How has farming affected the risk of flooding in the Eden basin?
Intense farming compacts soil
= less infiltration and more runoff
=more risk of flooding
How has construction affected the risk of flood at the Eden Basin?
Built up areas increasing= more impermeable surfaces.
increases run-off and decreased infiltration.
=more flood risk
How have changes in deforestation affected the flood risk at the Eden Basin?
Forest cover has been removed
=less trees means decreased infiltration and increased runoff
=Flashier flood hydrographs
How did storm Desmond affect the Eden Basin?
2015- devastating flooding in Cumbria due to record rainfall.
2000 homes flooded after 48 hours of rainfall.
