Eden basin Flashcards
where is the Eden Basin?
North West of England between the Lake District and the Pennines
what area is the river mostly in and where does it flow through?
mostly in rural areas but flows through Carlisle
what is the average rainfall like of the Eden Basin?
higher than UK average
822mm per year
what shape is the basin and what effect does it have?
long and narrow which reduces the lag time
what is the rock type to the west of the Basin?
igneous i permeable rock
what is the rock type surrounding the majority of the basin?
permeable rock like sandstone and limestone
impact of cattle on flooding and what has happened to cattle numbers?
cattle can compact the soil
agricultural cattle reduces the amount of vegetation that can intercept
50% rise in cattle between 2000 and 2009
impact of construction on flooding?
new home development lead to 10,000 new houses which reduces infiltration due to increased concrete and tarmac
what does deforestation lead to?
farm land and houses have removed lots of trees which increases the risk of flash flooding
what impacts will climate change have on the Eden basin?
40% more rainfall in UK by 2100
infiltration capacity is already reached so lag time will reduce as ground already saturated
when was storm Desmond?
December 2015
how much rain fell during storm Desmond?
263mm in 48 hours
50mm more than December average
how many properties flooded during storm Desmond?
2000
how many people evacuated and how many people were without power due to storm Desmond?
1000 people evacuated
50000 without power
