Church Norton Spit at Pagham Harbour, West Sussex has accreted by approximately 100,000m3
of material in the past 10 years (see SCOPAC Stores and Sinks project), making it
one of the largest accreting features across the SCOPAC region.
The origin of the material is unknown; therefore this study will investigate whether
the material is transported from the sub-tidal across the nearshore bedforms to the
shore. The sub-tidal area fronting the Pagham frontage is very shallow and covered
with gravel. Some of this is visibly moving onshore as landforms (Inner Owers) but
there are some peculiar shingle features at right angles to the beach that are thought
to act as transport corridors.
SCOPAC has awarded £4,000 as a contribution towards the project to establish offshore
to onshore shingle transport pathways at Church Norton Spit.
Investigation of the nearshore bedforms will be achieved using two approaches:
1) A desktop GIS approach using South-east Regional Monitoring Programme data to
capture changes over the last 10 to 15 years.
2) Sediment tracing using the methods developed by the Eastern Solent Coastal Partnership
to document shingle movement under different conditions.
The project was instigated by Dr Uwe Dornbusch of the Environment Agency, Arun DC
and Chichester DC and is being led by Dr Cherith Moses from the University of Sussex
with input from Professor David Sear from the University of Southampton.
The Eastern Solent Coastal Partnership will provide the tracer study retrieval equipment.
Wave refraction (top) over the shore perpendicular structure shows a distinct alongshore
Offshore to onshore transport across distinct landforms at Church Norton Spit