Flashcards in Hydrographs, Flooding, River Management, Coasts intro Deck (13)
Name the 4 parts of a flood hydrograph
Give 5 causes of the Boscastle flooding
2.Steep valley sides - overland flow
3.Impermeable surfaces - surface runoff
4.Ground saturated due to storms in the days before 5.Confluence of the River Valency and River Jordan.
Give 6 effects of the Boscastle flooding
-Roads blocked - Helicopter needed
-Emergency accommodation needed
-Vehicles carried out to sea -Insurance costs increased for homeowners
-Tourism industry seriously affected.
What other example of river flooding did you study?
somerset Levels in 2014
Give four causes of the somerset levels flooding?
-Levels only 8m above sea level
-Lots of rainfall in the days before therefore ground was saturated
Name 3 hard engineering river management strategies
Name 3 soft engineering river management strategies
-Land use zoning
The size and energy of a wave depends upon 3 factors. What are they?
-Strength of wind
-Time wind has been blowing for
What is it called when water washes up the beach?
What is it called when water washes back down the beach?
What is a concordant coastline?
Where the geology is parallel to the coastline. It has one type of rock.
What is a discordant coastline?
Where the geology is at 90 degrees to the coastline. It has different types of rock.