Coasts Important things for Coasts Topic AS Geog 4.0 / 5 based on 5 ratings ? GeographyCoastal environmentsASAll boards Created by: BexSnellCreated on: 22-05-12 18:55 Constructive/ Destructive Waves Constructive Swash > Backwash Low and Flat Lower Energy 6-8 per minute Depositional Destructive Backwash > Swash Tall Higher Energy 10-12 per minute Erosive 1 of 9 Sand Dune Formation Everybody Finds Munching Food Helps Survival Embryo Foredune Main Fixed Heath Slacks 2 of 9 Isostatic/ Eustatic Isostatic = LOCALISED - LAND Eustatic = GLOBAL - SEA Submergent = Rias - Fjords Emergent = Raised Beach 3 of 9 Coastal Flooding - Banglasdesh Causes 80cm of rain in one day Heavy winds Tropical Thunderstorms Short Term 350,000 deaths Contaminated water Loss of cattle Long Term Embankments flooded 1hr journey to get fuel wood Have to borrow money 4 of 9 Coastal Flooding - North Sea, UK Causes Storm surge Low pressure Affects Communities from Yorkshire to Essex 300 deaths in Britain Dutch coasts destroyed Solutions Thames Barrier Delta Scheme 5 of 9 Erosion - Holbeck Hall Holbeck Hall - Scarborough, 1993 Causes Crackes in the land due to 125mph winds Effects Hotel fell of cliff Rotational cliff slumping Several landslides 3 days for whole hotel to be destroyed 6 of 9 Erosion - Barton On Sea Barton On Sea - Dorset Border, UK Causes Erosion of cliff up to 1m per year. Responses Hold the line Managed retreat Do nothing 7 of 9 Hard Engineering - Barton On Sea Caused by... Groynes built in Bournemouth's beach. Barton On Sea's beach starved of sand. Geology led to rotaional slumping of the cliff! 8 of 9 Soft Engineering - Pevensey Bay East Sussex, protects over 15,000 properties. Solutions Reprofiling Replenishment Monitoring Groynes Wooden Retaining Wall Tyres etc 9 of 9
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