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Exploring the High Energy Coastal Environment of Yorkshire and North Yorkshire's Erosion Rates

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Phoebe

15/06/2023

Geography

Saltburn to Flamborough Head case study (coasts)

Exploring the High Energy Coastal Environment of Yorkshire and North Yorkshire's Erosion Rates

The dynamic coastline of Yorkshire showcases powerful natural processes that continuously reshape the landscape through erosion and deposition.

High energy coastal environment Yorkshire features dramatic cliffs and beaches that experience significant wave action, especially during storms and high tides. The North Sea's powerful waves crash against the coastline, creating distinctive landforms like wave-cut platforms, caves, and arches. This constant wave action, combined with weathering processes, breaks down the coastal cliffs and transports sediment along the shore.

The erosion rates coastal cliffs North Yorkshire vary significantly depending on the local geology and exposure to wave action. Some areas experience erosion rates of up to several meters per year, particularly where softer rocks are present. The coastline between Bridlington and Scarborough is especially vulnerable, with notable examples at locations like Holderness, where historical records show substantial land loss over the centuries. The varying rock types along the coast create different erosion patterns - while some areas with harder rocks like chalk show greater resistance, others with softer boulder clay erode more rapidly. Sediment sources and cliff geology Flamborough Head play a crucial role in understanding these patterns. The chalk cliffs at Flamborough Head act as a natural barrier, influencing sediment movement and coastal processes along the Yorkshire coast. The geology transitions from the resistant chalk in the north to softer materials in the south, creating a complex system of erosion and sediment transport that affects coastal management strategies and local communities.

These natural processes have significant implications for coastal communities and infrastructure. Local authorities must carefully monitor erosion rates and implement appropriate coastal management strategies to protect vulnerable areas. Understanding these coastal dynamics is essential for planning future developments and protecting existing structures along the Yorkshire coast. The interaction between waves, weather, and geology continues to shape this dramatic coastline, making it a fascinating example of coastal geomorphology in action.

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15/06/2023

239

Saltburn to Flamborough Head, Yorkshire a high-energy coastal
environment
Location:
●
Geology:
Energy:
Cliffs:
Between Saltburn and Flamboro

View

Understanding Yorkshire's Dynamic Coastal Environment

The stretch between Saltburn and Flamborough Head represents a classic high energy coastal environment Yorkshire, spanning 60 kilometers of dramatic coastline. This region showcases remarkable geological diversity and intense wave action that shapes its distinctive features.

The North York Moors dominate the landscape, rising 400 meters above sea level with a complex geology of sandstones, shales, and limestones formed during the Jurassic period. This geological foundation creates a varied coastline where erosion rates coastal cliffs North Yorkshire differ significantly based on rock type and wave exposure. The more resistant sandstone and limestone areas erode at approximately 0.1 meters per year, while weaker shale and clay sections can retreat by up to 0.8 meters annually.

Definition: High energy coastal environments are characterized by powerful waves, significant erosion potential, and dramatic landform development. In Yorkshire, this environment is created by waves traveling over 1500km fetch from the North/Northeast.

The coastline's geological composition significantly influences erosion patterns and landform development. At Flamborough Head, chalk cliffs demonstrate remarkable resistance to erosion, while areas covered with glacial till show more vulnerability. Wave monitoring in Whitby Bay reveals summer wave heights frequently exceeding 4 meters, contributing to the continuous reshaping of this dynamic coastline.

Highlight: The variation in rock types creates a stepped cliff profile between Robin Hood's Bay and Saltburn, where steeper slopes indicate more resistant rock formations while gentler slopes reveal weaker rocks subject to mass movement.

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Geography

239

15 Jun 2023

2 pages

Exploring the High Energy Coastal Environment of Yorkshire and North Yorkshire's Erosion Rates

P

Phoebe

@phoebe_iwme

The dynamic coastline of Yorkshire showcases powerful natural processes that continuously reshape the landscape through erosion and deposition.

High energy coastal environment Yorkshirefeatures dramatic cliffs and beaches that experience significant wave action, especially during storms and high tides. The... Show more

Saltburn to Flamborough Head, Yorkshire a high-energy coastal
environment
Location:
●
Geology:
Energy:
Cliffs:
Between Saltburn and Flamboro

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Understanding Yorkshire's Dynamic Coastal Environment

The stretch between Saltburn and Flamborough Head represents a classic high energy coastal environment Yorkshire, spanning 60 kilometers of dramatic coastline. This region showcases remarkable geological diversity and intense wave action that shapes its distinctive features.

The North York Moors dominate the landscape, rising 400 meters above sea level with a complex geology of sandstones, shales, and limestones formed during the Jurassic period. This geological foundation creates a varied coastline where erosion rates coastal cliffs North Yorkshire differ significantly based on rock type and wave exposure. The more resistant sandstone and limestone areas erode at approximately 0.1 meters per year, while weaker shale and clay sections can retreat by up to 0.8 meters annually.

Definition: High energy coastal environments are characterized by powerful waves, significant erosion potential, and dramatic landform development. In Yorkshire, this environment is created by waves traveling over 1500km fetch from the North/Northeast.

The coastline's geological composition significantly influences erosion patterns and landform development. At Flamborough Head, chalk cliffs demonstrate remarkable resistance to erosion, while areas covered with glacial till show more vulnerability. Wave monitoring in Whitby Bay reveals summer wave heights frequently exceeding 4 meters, contributing to the continuous reshaping of this dynamic coastline.

Highlight: The variation in rock types creates a stepped cliff profile between Robin Hood's Bay and Saltburn, where steeper slopes indicate more resistant rock formations while gentler slopes reveal weaker rocks subject to mass movement.

Saltburn to Flamborough Head, Yorkshire a high-energy coastal
environment
Location:
●
Geology:
Energy:
Cliffs:
Between Saltburn and Flamboro

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Sediment Dynamics and Coastal Features at Flamborough Head

The complex interplay of geology and marine processes along this coastline creates distinctive features and sediment patterns. Sediment sources and cliff geology Flamborough Head play crucial roles in beach formation and coastal evolution. The area falls within sub-cell 1d of major sediment cell 1, receiving materials from various sources including nearshore deposits and cliff erosion.

Example: Robin Hood's Bay demonstrates how differential erosion shapes the coastline, with weak shales being eroded while resistant sandstone bands form protective headlands at Ravenscar and Ness Point.

The coastline exhibits numerous dramatic features formed by wave action on the varied geology. At Flamborough Head, master joints in the chalk have been enlarged by erosion to create caves and arches, particularly visible in Selwick's Bay. Over 50 geos narrowinletsnarrow inlets align with the dominant wave direction from the northeast, while blowholes develop where vertical joints in the chalk have been enlarged by erosive forces.

Beach development varies significantly along the coastline, with the best-developed beaches found in sheltered, low-energy environments like Scarborough and Filey Bay. The high tidal range of 4 meters and limited sediment input from rivers affect beach formation, while the presence of headlands interrupts longshore drift patterns, creating distinctive pocket beaches and sediment accumulation zones.

Vocabulary: Geos - narrow rock-walled inlets formed by wave erosion along joints and faults in cliff faces.

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