Authors :
Michael L. Hackett
Volume/Issue :
Volume 9 - 2024, Issue 5 - May
Google Scholar :
https://tinyurl.com/fw7bn3w6
Scribd :
https://tinyurl.com/2s49hjaw
DOI :
https://doi.org/10.38124/ijisrt/IJISRT24MAY101
Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.
Abstract :
This study examines the coastal region
spanning from Hurst Spit to the mouth of the
Lymington River along the Western Solent coast in
Hampshire, South England. The area comprises critical
habitats for international bird species on the seaward
side and is protected by a seawall on the landward side.
Rising sea levels pose a significant threat to this area,
including habitat loss and potential seawall breaches.
To address the uncertainty in sea level rise
projections for the 21st century, this study utilises data
processing in ArcGIS, including LiDAR data, tidal data,
and sea level rise projections. It adopts contingency
allowances for sea level rise, resulting in a projected
0.89 metre by 2100.
Analysis reveals a significant transformation in
habitat distribution, with standing water and mudflats
expanding while salt marshes and dry land areas
diminish. Salt marsh areas are projected to contract by
64.6%, with the pioneer salt marsh facing the greatest
loss.
The report recommends a proactive approach,
including realigning the seawall in vulnerable areas,
allowing for the creation of new salt marshes. This
managed intervention strategy can reduce habitat loss
to approximately 17.43%, mitigating the potential
ecological and human habitat impacts of rising sea
levels in that region.
Keywords :
Arcgis, Coastal Squeeze, Digital Terrain Map (DTM), Lidar, Sea Level Rise, Salt Marshes, Mudflats, Highest Astronomical Tide (HAT), Mean High Water Spring (MHWS), Mean High Water (MHW), Mean High Water Neap (MHWN), Lowest Astronomical Tide (LAT), Ordnance Datum (OD), Chart Datum (CD)
References :
- Field, J. G; Hempel, G; Summerhaynes, C. P. (2002). Oceans 2020 Science, Trends and the Challenge of Sustainability. Island Press, Washington.
- Holland, G. & Pugh, D. (2010). Troubled Waters – Ocean Science and Governance. Cambridge University Press, New York.
- Trujillo. A. P. & Thurman, H. V. (2014). Essentials of Oceanography (11th Ed.). Pearson Education Limited, Harlow.
- Wind, H. G. (Ed). (1987). Impact of Sea Level Rise on Society. A. A. Balkema, Rotterdam.
- Annual Tide Report. (2022). Lymington Tide Gauge, Admiralty Tide Tables, Supplementary Table III, UK
- Google Earth Pro. (2024). Google LLC. https://earth.google.com/web/
- National Coastal Monitoring. (2024). National Network of Regional Coastal Monitoring Programmes, UK. https://coastalmonitoring.org/gallery/grid/beaches/shingle
- Planning Policy Statement 25: Development and Flood Risk. (2006). Crown Copyright Document. St Clements House, Colegate, Norwich.
- Tidal Data for Hurst Point & Lymington. (2006). Proudman Oceanographic Laboratory, UK
- Topographical LiDAR data of Hurst Spit to Lymington. (2009). Environmental Agency, UK
- UNEP-WCMC. (2024). Protected Area Profile for Hurst Castle And Lymington River Estuary from the World Database on Protected Areas, April 2024. www.protectedplanet.net
- What is Coastal Squeeze? (2021). Crown Copyright Document. Flood and Coastal Erosion Risk Management & Environmental Agency, UK
- https://www.gov.uk/flood-and-coastal-erosion-risk-management-research-reports/what-is-coastal-squeeze
This study examines the coastal region
spanning from Hurst Spit to the mouth of the
Lymington River along the Western Solent coast in
Hampshire, South England. The area comprises critical
habitats for international bird species on the seaward
side and is protected by a seawall on the landward side.
Rising sea levels pose a significant threat to this area,
including habitat loss and potential seawall breaches.
To address the uncertainty in sea level rise
projections for the 21st century, this study utilises data
processing in ArcGIS, including LiDAR data, tidal data,
and sea level rise projections. It adopts contingency
allowances for sea level rise, resulting in a projected
0.89 metre by 2100.
Analysis reveals a significant transformation in
habitat distribution, with standing water and mudflats
expanding while salt marshes and dry land areas
diminish. Salt marsh areas are projected to contract by
64.6%, with the pioneer salt marsh facing the greatest
loss.
The report recommends a proactive approach,
including realigning the seawall in vulnerable areas,
allowing for the creation of new salt marshes. This
managed intervention strategy can reduce habitat loss
to approximately 17.43%, mitigating the potential
ecological and human habitat impacts of rising sea
levels in that region.
Keywords :
Arcgis, Coastal Squeeze, Digital Terrain Map (DTM), Lidar, Sea Level Rise, Salt Marshes, Mudflats, Highest Astronomical Tide (HAT), Mean High Water Spring (MHWS), Mean High Water (MHW), Mean High Water Neap (MHWN), Lowest Astronomical Tide (LAT), Ordnance Datum (OD), Chart Datum (CD)