Holderness Coast Case study Flashcards
How much is the Holderness coast predicted to sink by (2050)
9cm by 2050
How much is western Scotland predicted to rise by (2050)
11cm by 2050
On average what does the whole coastline erode by year
2m/yr
When does erosion mainly occur on the holderness coast
In storm events
When was there a large erosion event and how much did the coast erode and where
1967 by Skipsea and eroded by 6m in one night
How many villages have been lost on coast since roman times
over 30
What type of rock is Flamborough head made out of
chalk and limestone - very hard rock, slow rates of erosion
What management is taking place at Bridlington
Hard engineering - Sea wall and groynes
What impact does the management of Bridlington have down the coast
restricts sediment supply causing further erosion down the coast
What erosion rate does mappleton face each year
2m/yr - road only 50m from coast at closest point
What did they do wrong with Spurn head
They fixed the spit in the wrong position which now makes it unable to retreat and vulnerable to flooding and breaches.
How could the collapse of spurn head mean
remove the protection of towns along river Humber
What direction of wind creates the most powerful waves (greatest fetch)
north east direction
When did the holderness coast experience a storm surge, and how many people killed
1953 - 300 people lost
On flambourough head what are verticle lines of cracks
joints
What are verticle lines of chalk displaced
faults
What has a fault exploited on Flamborough’s head formed
Selwick’s bay
How much has a the coastline betwwen bridlington bay to spurn head retreated since roman times
5km
Where down the coastline does the Holderness coasts sediment help
King’s lyn
How is the sediment transfered down the coastline
longshore-drift
What does glacial deposits create lots of
mass-movements: especially slumpting/rotational slide (due to water
What during storm events causes the mass movements
the clay reaching its liquid limit
What year did a tidal surge hit spurn head
2013
Why did the tidal surge have such an impact
Issue of lack of funding to Yorkshire Naturalists trusts - allowed defensive to fall into disrepair
