Field trip follow-up

What was learnt on the field trip?

Did anyone get any pictures?

BookletsPlease copy over the notes/sketches on

management typesThen cut out and glue in your answers to the

questionnaire and your field sketches

Finally, please annotate your maps to show how the land is used (use evidence + your memory) and what coast defences there are

What happened here?

Noel Jenkins

Coastal defence match-up Sea Walls Groynes Rock armour Revetments Gabions Replenishment Cliff reshaping Managed retreat

Reasons to protect the coastline

Social

Environmental Economic

Barton-On-Sea & HighcliffeHampshire/Dorset coastlineThe geology is very soft. The cliffs are layers of sand and clay – very

soft rocks, unresistant to erosion.Water from rain soaks in and makes the

coastal erosion worse by allowing material to slip and collapse.

Barton-On-Sea & HighcliffeBeach management is a political issueHighcliffe is in Dorset, Barton in HampshireThe two councils do not agree about coastal

management

What one council does to protect its coast, has a big impact on the other coastline – e.g. Groynes trap sediment which starves beaches downcoast, meaning they are more vulnerable to erosion

What defences are there?

Make notes on Highcliffe vs Barton defences

How is the coast being protected at Highcliffe?

Groynes, Cliff reshaping and Beach Recharge at Highcliffe

Groynes and Beach Recharge at Highcliffe

Beach Replenishment and Cliff Stabilisation at Highcliffe

Rock Armour, Beach Reshaping and Cliff Stabilisation at Barton

Coastal Protection along Highcliffe, Dorset

And what defence is this?

Coastal Management Techniques at Highcliffe, Dorset

What defences are here?

What defences might be here?

Same problem, two places, two different solutionsHighcliffe and Barton coasts are managed

differently: one is protected strongly, the other is managed retreat

What do you think influences the decision makers who decide how to protect coastlines?

What has happened here? Why?What has happened here? Why? What is this? Why has it been built? How does it work?

Land use here:This is the border between Hampshire and Dorset. Why is that important?:

Land use here:

Coastal Management along Highcliffe and Barton on Sea

Barton on Sea, Hampshire

Highcliffe, Dorset

How do they decide?It all comes down to land-use, the value of the

land that needs protecting

Decision makers weigh up the costs of coastal management, against the benefits of protection.

But each area is only responsible for itself, they do not interact to see if they are affecting another coastline

Barton side.

No defences.

No houses, just Naish Farm camp site.

Cliffs are retreating inland by several metres a year.

Highcliffe side.

Golf course and housing on the cliff top.

Beach defences visible.

Sketch of land use at Highcliffe and Barton-on-Sea

Exam Q : HWDescribe and explain the coastal

management strategy at Highcliffe compared to Barton-On-Sea. [4marks]

Describe the effects of Highcliffe’s coastal management strategy on Barton on Sea [4 marks]

Sea Walls Groynes Rock armour Revetments Gabions Beach nourishment Beach reshaping/

stabilisation Managed retreat

Match them up

Coastal Management Techniques at Highcliffe, Dorset