holderness coast
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Case Study: The Holderness Coast, NE
England
Learning Objectives:To know and evaluate the range of management strategies
used across the Holderness CoastLearning Outcomes:
To use GIS maps to and link coastal management strategies to the SMP for the Holderness Coast
Tasks:1. Match the words to the pictures. Use this to write a
definition of the key term.2. Decide which location the satellite image is showing.
• Complete the table next to the map• Annotate the image: Positives and negatives of that type of
management and why you think they selected to use it in that particular location
3. As a group use the work we have completed today, the resource and your knowledge of GIS to help brainstorm ideas to help answer the exam question.
Case Study: The Holderness Coast, NE England
Tasks:1. Match the words to the pictures.2. Use this to write a definition of the key term.3. Check the answers of the group next to you and make any
relevant corrections
Case Study: The Holderness Coast, NE England
Integrated coastal management: Shoreline Management Plan (SMP):
Hold the Line: Advance the Line:
Retreat the Line: Do Nothing:
Holderness Coast Sediment Cell
Hornsea
Mappleton / Great CowdenWithensea
Easington
Spurn Head
Coastal Management
along the Holderness
Coast
Task: Decide which location the satellite image is showing using the descriptions
• Complete the table next to the map• Annotate the image: Positives and negatives of that type of
management and why you think they selected to use it in that particular location
Example: Skipsea
Example: SkipseaLocation Skipsea
SMP method Hold the line / Do nothing
Management Gabions (cages of rock)
Hard or Soft Engineering
Hard (Gabions), Soft (do nothing)
Gabion cages built by local landowner to protect caravan park
Have been successful in stopping erosionExpensive, as landowner has only been able to afford to protect a small area
Landowner has protected this area as the leisure park is worth the cost of the gabions. Not all is protected as the caravans can be moved away as the coast retreats
Erosion either side of the gabions has continued
Gabions are cheaper than sea walls and groynes, this has enabled a private landowner to pay for them
HornseaLocation
SMP method
Management
Hard or Soft Engineering
Mappleton
Location
SMP method
Management
Hard or Soft Engineering
WithenseaLocation
SMP method
Management
Hard or Soft Engineering
Easington
Location
SMP method
Management
Hard or Soft Engineering
Spurn Head
Location
SMP method
Management
Hard or Soft Engineering
Task: As a group use ideas form the work we have completed today, the resource and your knowledge of GIS to help brainstorm ideas to answer the exam question.
Rotate your work and add at least one new idea to the work of other groups
Coastal management along the Holderness Coast?
Integrated Coastal Management• Means that sections of the coast are managed as a whole, rather than by
individual towns or villages. Coastal engineers now realise that actions in one place have effects in other areas.
• Shoreline Management Plans (SMPs) are used to manage smaller sub cell area. All local interest groups are consulted before taking one of the following options.
1. Do Nothing: e.g. let existing defences collapse2. Hold the Line: e.g. keep the coastline where it is by using hard
engineering3. Advance the Line: e.g. build coastal defences further out to sea
– breakwaters4. Retreat the Line: e.g. allow the coast to erode back to a defined
line The SMP for the Holderness Coast is:
• Hold the line in places of economic value – e.g. Gas pipe terminal at Easington and towns at Bridlington and Hornsea
• Do nothing in areas where nothing is worth protecting from erosion. Unprotected areas will eventually from bays. These will become more sheltered, and erosion should stabilise
What are the positives and negatives of Integrated Coastal Management
Coastal management along the Holderness Coast?
Positives• Combines hard engineering (for
places of economic value needing a strategy of hold the line) with soft engineering which is more sustainable and long term for areas of lower value or with valued eco-systems.
• They manage the coastline (sediment cell) as a whole so consider any consequences of management schemes on different areas of the coastline.
• They take into account the views of many local interest groups, so should be of benefit to most.
Negatives• It can be difficult and time
consuming to consult lots of different players, with different priorities.
• Hard engineering (holding the line) is expensive and can be short term.
• Holding the line in one place can have increased impacts in other areas. E.g. Mappleton – rock groynes leading to increased erosion in Great Cowden.
• Managed retreat (do nothing) is often unpopular, it can be seen as an ‘easy opt out’ and can be politically difficult to execute.
What are the positives and negatives of Integrated Coastal Management
May 2012