Holderness Flashcards
What is the average rate of erosion in Holderness?
1.8m per year on average, in some areas like Great Cowden can be 10m per year.
How long is the Holderness coastline?
61km
Where is the Holderness?
Stretches from Flamborough Head to Spurn Head.
What is the main reasons for rapid erosion in Holderness?
Easily Eroded
Narrow Beaches
Flamborough Head stops sediment
Coastal defences
Powerful waves
Social impacts at Holderness
Property prices fall sharply due to risk
Around 30 villages have been lost since Roman times.
Economic Impacts
Visitor numbers in Bridlington dropped by over 30% between 1998 and 2006.
£2 million-Mappleton in 1991 to protect coast.
Gas Terminal at Easington at risk. only 25m from cliff edge. Provides 25% of British gas supply.
80,000m2 of quality farmland is lost each year.
Environmental Impacts
SSSIs are threatened
Lagoons near Easington- has a colony of 1% of British breeding population of little terns.
Separated by narrow strip of shingle, if erosion breaks through lagoon is destroyed.
What is the fetch of the holderness coast?
500-800km.
Not that far, but Atlantic waves circle round the north of Britain and add huge amounts of energy.
What is the composition of the bed rock in Holderness?
Boulder clay which is easily eroded as well as chalk.
What is the weather system like?
low pressure- over north sea are often intense and produce very strong winds and thus strong waves.
What is the significance of the North Sea being small and partially closed?
creates huge waves during storms where the energy cant be dissipated out anywhere.
Why dont sediments and boulders from cliffs help form beaches?
Made of clay and therefore are easily swept away and eroded.
What part does LSD have in Holderness?
causes any sand to be taken south leaving the Holderness coast vulnerable.
Accumulates at spurn head.
