eden basin Flashcards
where is the eden basin located
north west england
between mountains of lake district and Penines
LD to left and P to right
where is the basin’s source
Penine hills
where is the mouth of the river located
at scottish border
upland areas that drain …
into the river eden cause flooding downstream
what is rainfall like in the eden basin
higher than national average
822mm per year
what are slopes in the basin like and what does this lead to
steep slopes mean lag time is reduced and increases peak discharge
what is most of the rock like and what does this mean
permeable (limestone + sandstone)
quick infiltration, little run off
increasing lag time
name 6 factors that impact the water cycle of the eden basin and increase the flooding risk
1) farming
2) land use change
3) storm events
4) antecendent conditions
5) climate change
6) deforestation
2 farming examples in lake district which affects flooding in the eden basin
heavy machinery/ploughing compacts soil, releases carbon, less infiltration, more surface runoff
grazing - less vegetation, less interception, more water reaches river channel
how does land use change lead to flooding
building houses on flood plains and urbanisation
impermeable surfaces, more runoff
example of storm event that caused flooding in eden basin
storm desmond December 2015
how can antecedent conditions affect a flooding event
if ground already saturated, more surface runoff -> flood
how will climate change impact the eden basin
more extreme weather
more frequent and intense storm events
how much could rainfall increase by 2100
by 40%
how does deforestation affect the eden basin
less interception, more runoff -> flooding
