Case Study - High Energy Coastline
作者：Graeme Eyre
1. Change Over Time
1.1. Erosion
1.1.1. Weak Shale - 0.8m per year
1.1.2. Limestones Erode less than 0.1m per year
1.2. Transportation
1.2.1. Longshore drift from north to south
2. Case Study Location
2.1. Saltburn and Flamborough Head
2.2. 60 km long
3. Physical Factors
3.1. Geology
3.1.1. North York Moors - 400m Above Sealevel
3.1.2. Sandstone / Shale
3.1.3. Limestones
3.2. Energy
3.2.1. Dominant waves from north/northeast
3.2.2. Fetch over 1,500km
3.2.3. Wave height over 4m
3.3. Sediment Sources
3.3.1. Sub-cell 1d
3.3.2. Supplied by cliff erosion including sandstone and chalk from rock outcrops
3.3.3. River Esk - but limited sediment due to Weirs (human activity)
3.3.4. Net increase of beach sendiment at Saltburn
4. Landforms
4.1. Flamborough Head (Headland)
4.1.1. Chalk
4.1.2. Topped with glacial till