Geography!!! help!!!!?

Question

Why is Happisburgh north norfolk particularly threatened? is it a different rock type to other places, what angle are the cliffs, are defences further along the coast preventing LSD bringing beach material to Happisburgh?

Answer 1

The wooden sea defenses built in the late '50s at Happisburgh, North Norfolk have been failing over the last few years, and large chunks of the sandy cliffs are regularly falling into the sea. Changes in Government policy now limit funding for coastal protection.

The rise in sea level has been cited as one contributing factor of the erosion of Happisburgh Till. Another factor is the lithology and topography of the area.  The till consist mainly of relatively soft Jurassic-Cretaceous aged mudstones, limestones and sandstones, and as such is easily eroded.

Waves are important for two reasons. First, wave action controls where erosion and

deposition occur along the coastline.Waves roll in from the North Sea to the north-east.

The north-east-facing part of the Norfolk coast bears the full brunt of the waves and

suffers erosion. Waves are incident on the North Norfolk and Suffolk coasts at an obliqueangle so that newly-eroded sediment is transported along these coasts via longshore drift.

Because Happisburg borders The North Sea, tides are also a factor.  The North Sea can be considered a closed basin which is being forced to oscillate

by the tidal flow across its northern boundary with the Atlantic. The complicated tidal patterns increase the erosion.

Finally, although the prevailing winds across Britain and Ireland are westerly, the dominant (strongest) storm winds are often in the north or north-east, accentuating wave

action and erosion of the north-east facing coast.