1. management: Robin Hood’s Bay
Investigating Coastal process and
management: Robin Hood’s Bay

2. Hyperlink to dramatic storm at Robin Hood’s Bay – it isn’t always sunny and warm!

3. Postcard showing the larger beach in front of the village in 1890’s
Investigation Aim: Investigate coastal processes at work in Robin Hood’s bay & how these are managed
Postcard showing the larger beach in front of the village in 1890’s

4. Postcard showing the larger beach in front of the village in 1890’s
Investigation Aim: Investigate coastal processes at work in Robin Hood’s bay & how these are managed
Learning objectives for field visit:
Understand how different coastal processes are shaping this coastline
Consider advantages & disadvantages of different coastal defences
Develop fieldwork skills (such as measuring beach dimensions)
Personal learning objective: ………………………………
Postcard showing the larger beach in front of the village in 1890’s

6. Is it safe to leave the classroom? What hazards might we face?
Use the image above to:
Identify hazards
Suggest how we can manage those hazards

7. Catchphrase
Note down the key coastal term you think is being described on each slide

8. Rip rap

9. Headland

10. Fetch

11. Soft
Hard engineering

12. Stack

13. Destructive wave

14. Shore
Longshore drift

15. Long shore drift = transportation
Swash
Oblique angle up the beach
Backwash
Straight back to the sea

16. Long shore drift = transportation
The net movement of beach material along a coastline aligned with wave direction
Longshore Drift

17. Processes of Coastal Erosion
Attrition
Collision of detached material causing smaller, more rounded particles
Wave Pounding
(up to 30 tonnes/m²)
Corrosion/Solution
Chemical reactions breaking down rocks
e.g. Salt crystalisation, blue-green algae, carbonic acid in sea water
Abrasion/Corrasion
Wearing away of coastline by material hurled against it
Hydraulic pressure
Compression of trapped
air & sudden release

18. Position on the coast
High energy coastline
Fetch?

19. The distance a wave can travel unobstructed by landmasses
Fetch
The distance a wave can travel unobstructed by landmasses
Fetch up to 1500 km!

20. Constructive waves Shallow Beach Eliptical Orbit STRONG SWASH
Large wavelength
Low wave frequency
WEAK BACKWASH
Shallow Beach
Eliptical Orbit

21. Destructive Waves Steep beach Circular Orbit WEAK SWASH
Small wavelength
High wave frequency
Circular
Orbit
STRONG BACKWASH
Steep beach

22. Destructive or Constructive?

23. Global mean sea level rise is caused by an increase in the volume of the global ocean. This in turn is caused by:
Warming the ocean (thermal expansion).
Loss of ice by glaciers and ice sheets.
Reduction of liquid water storage on land.
Mean sea levels estimated to rise by 0.53 – 0.98 m by 2100
Storm frequency and ferocity may also increase
Source: The Intergovernmental Panel on Climate Change (IPCC)