4A Intentional Change In A Coastal Environment Sandbanks Flashcards
What two methods have been implemented at sandbanks?
Beach recharge
Rock groynes
How much sea rise could flood the lowest point of the spit?
0.6m
Why does Poole harbour entrance have to be managed?
Without management sediment would build up as a result of longshore drift
What award has the sand bank beach won?
Award winning blue flag beach
Why should sandbanks be protected?
Recreational activities such as sailing and surfing in the harbour
Multi million pound houses on the waterfront
Haven hotel
Award winning beach
What hotel is on sandbanks?
Haven hotel
What is beach recharge?
Where sediment dredged from the harbour is dumped offshore
Natural currents then bring the sediment back to shore and build the beach up naturally
How much is traditional beach recharge?
£20 / m3
How much is dumping sediment offshore (beach recharge)?
£3 /m3
When was the review of the success of the beach recharge?
2018
What percent of the sediment did the review suggest reached the beach after 18 months?
Only 3% of the 30,000 m3 reached the beach
What have rock groynes at sandbanks meant?
It has meant that the entrance to Poole harbour has been kept open and allows ferries to pass through
What do rock groynes do to protect the entrance to Poole harbour?
Absorb wave energy and reduce the rate of erosion
Which would be 1.6m per year
Who manages the area at sandbanks?
Poole harbour commissioners
Poole Borough council
Environment agency
Is the beach a major tourist attraction?
YES
What is the estimated cost of the damage if no management strategies are applied?
£18 million in damage
