CASE STUDY 12 : COASTS CASE STUDY - BARTON ON SEA : DORSET/HAMPSHIRE COAST LINE

Question 1

LOCATION

Answer 1

DORSET
HAMPSHIRE
NORTH WEST OF ISLE OF WIGHT
SOUTH COAST OF ENGLAND
EAST OF BOURNEMOUTH
NORTH WEST OF THE ISLE OF WIGHT

Question 2

EROSION PROBLEMS

Answer 2

1. LONGSHORE DRIFT
2. SLUMPING (SANDSTONE ON TOP OF CLAY)
3. WAVE CUT NOTCH AND PLATFORM
   (CLIFFS NOT VERY RESISTANT TO EROSION SO CLIFFS EASILY UNDERCUT BY WAVE ACTION)

Question 3

MANAGEMENT OF THE COASTLINE - HARD ENGINEERING (4 types)

Answer 3

HOLD THE LINE APPROACH TO COAST MANAGEMENT

1. CLIFF REGRADING = changes the angle/shape of cliff = more stable = less likely to slump. Path included which improves access
   * **£4.5 MILLION FOR THE CLIFF REGRADING AND DRAINAGE
2. CLIFF DRAINAGE = drains excess water = prevents saturation and slumping
3. ROCK GROYNES = trap the beach material transported by LSD = natural barrier to absorb wave energy. ***£100,000/GROYNE
4. RIP RAP = large boulders to absorb wave energy an hence protect cliff from erosion
   * ***** £2,000 PER METRE

TOTAL COST FOR 30 YEARS = £6m

Question 4

ENVIROMENTALISTS VIEW OF THE HOLD THE LINE APPROACH FOR MANAGMENT OF THE COAST - 2 POINTS

Answer 4

BELIEVE THE “HTL”APPROACH IS DETRIMENTAL AND NOT SUSTAINABLE BECAUSE -

1. CHANGES NATURAL COASTAL ENVIRONMENTS WHICH CAN AFFECT SPECIES HABITATS.
   PREFER TO USE THE EXAMPLE OF PORLOCK BAY(MANAGED RETREAT STRATEGIES) = SALT MARSH RESTORED AND WILDLIFE IS FLOURISHING
2. SEA LEVEL CONTINUES TO RISE AROUND THE WORLD = THESE APPROACHES WILL BECOME LESS ECONOMICALLY VIABLE AND THEREFORE UNSUSTAINABLE. THE SEA WILL WIN IN THE END THERFORE IT IS A WASTE OF MONEY

Question 5

LOCAL COUNCIL VIEW OF THE HOLD THE LINE APPROACH FOR MANAGMENT OF THE COAST

Answer 5

CURRENTLY, PROPERTY AND BUSINESSES ARE WORTH MORE MONEY THAN THE COST OF CURRENT DEFENCES.

HOWEVER, DIFFICULT TO JUSTIFY IF SEA LEVEL RISES AND STORM ACTIVITY CONTINUES MEANING MORE EROSION AND MORE MAINTENANCE

Question 6

RESIDENTS VIEW OF THE HOLD THE LINE APPROACH FOR MANAGMENT OF THE COAST

Answer 6

VALUE OF OUR HOUSES WILL DROP AS NO ONE WILL WANT TO LIVE HER WHERE A HOUSE IS AT RISK OF FALLING INTO THE SEA

Question 7

LOCAL BUSINESSES VIEW OF THE HOLD THE LINE APPROACH FOR MANAGMENT OF THE COAST

Answer 7

CAFE AND SHOP OWNER’S - BUSINESSES RELY ON THE “HOLD THE LINE” STRATEGY OTHERWISE WE WOULD COLLAPSE INTO THE SEA. BEFOREHAND CLIFF WAS RETREATING AT 1 METRE A YEAR.

GOLF COURSE AND CARAVAN SITE OWNER - SITUATED EITHER SIDE OF THE PROTECTED AREA. SEA RAPIDLY ERODING CLIFFS KEEP LOOSING GOLFING AREA AND KEEP MOVING CARAVANS BACK.NOT PROTECTED DUE TO LOWER VALUE OF THEIR LAND. HOWEVER, THEY BELIEVE TOURISTS COME TO VISIT THEM AND WOULD THEY STILL COME TO VISIT THE CAFE IF THE GOLF/CARAVAN PARK WASNT THERE ??

Question 8

TOURISTS VIEW OF THE HOLD THE LINE APPROACH FOR MANAGMENT OF THE COAST

Answer 8

LOVE VISITING B-ON-S
STUNNING VIEWS FROM CLIFF TOPS 
LOVE THE ICE-CREAM PARLOUR
-VE's
DEFENSES = NOT NATURAL CONSIDER OTHER PLACES LIKE PORLOCK BAY WHERE THEY HAVE LET THE NATURAL COURSE OF EROSION OCCUR.

Question 9

SLUMPING

Answer 9

??