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Post on 30-Dec-2015
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Site Description
• Very active morphodynamics – risk for beach users
I. Generation of Ness pole &
NE migration.
II. As Ness pole disintegrates,
it forms offshore sandbanks
which migrate onshore.
III. Onshore-migrating shoals
attach to shore.
I
II
III
Methods• Extract morphology from video ( 6 stages of the
updatedted version of cycle)
Key
Limit of intertidal regionSubtidal contour (-3 m ODN)Sediment transport pathwaysDry land
200 mScale:
Stage I
Access Channel
Shore-attached sand bar
NessHead
Stage II
Access Channel
Offshore sandbank (North)
Offshore sandbank(South) / Ness pole
Bea
ch
Stage III
Spratt Sands
Access Channel
Bea
ch
Offshore sandbank (North)
Offshore sandbank(South) / Ness pole
Expected results
• Simulations for:• A range of wave heights and directions
• Spring and neap variations
• A range of river discharge
• Characterise risks and produce a chart
explaining them
• Generate a risk map template for the manager to
modify.
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