Physical fieldwork (Walton on the Naze) Flashcards
HOW SUCCESSFUL IS COASTAL MANAGEMNET STRATEGIES ON WALTON ON THE NAZE (17 cards)
Why was this location chosen
range of coastal management methods
a section of the coastline with no coastal management
accessible location for a one day field trip
What was the aim of the fieldwork
to assess the success of coastal management strategies at reducing erosion and protecting the coastline
what primary data collection methods were used
beach profiling
groyne profile
bi-polar evaluation
secondary data- GIS flood risk map
why was beach profiling used and what does this tell us about coastal management
to assess the beach shape and gradient, if the beach profile is steeper at the managed sections they are effective as sediment is being trapped
What was the purpose of measuring groyne height and what does this tell us about CM
to check for sediment build-up
If the drop from the top of the groyne to the beach is bigger on one side of the groyne, longshore drift is happening
what secondary data was used and why
a flood risk map was used to understand the potential risk of flooding in the area, helping to evaluate the long-term effectiveness of the coastal defences
what were the findings from groyne profiles
more sediment on the updrift side of the groynes, indicating they successfully trap sediment and limit longshore drift
What was the positives and negatives of groyne profile
used scientific equipment e.g. tape measure and raging poles to collect precise data
Which coastal defence was identified as most effective
sea wall most effective at reducing erosion and providing coastal protection
How did groynes and rock armour contribute to coastal management
groynes trap sediment, building up the beach, while rock armour absorbed wave energy and provided additional habitat
what are the strength of the survey method used
easy to repeat
accessible data collection
reliable measurements across various locations on the beach
What are the weakness of the survey methods
Only parts of the beach was surveyed leading to limited sampling
some data may not fully represent the effectiveness of defences over time
What are the strengths of the coastal defences at walton on the naze
they effectively reduce erosion, manage flood risks, and improve accessibility for tourism and local use
What weaknesses were identified in the coastal defences
high maintenance cost and potential vulnerability to the impacts of climate change over the long term
What was the overall conclusion about the success of coastal management at walton on the naze
coastal defences were generally effective at reducing erosion and managing flood risks, altjough ongoing main
How were risks managed during the fieldwork
surveys were conducted at safe distances from cliffs and tide times were monitored closely
what were the risks identified during the fieldwork at walton on the naze
slippery surfaces
cliff instability
changing tides
