Accretion Plate Probing and Repeat Surveying

Accretion plate probing and repeat surveying to accretion pins has been carried out since February 2002 at the following mudflats:

Detail on Plate laying and pole transects

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Coring and Dating

In October 2002, cores were taken and dated from the following mudflats:

Pictures and more detail to follow

Sites

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Site 1: South Malling Church (OS: 412109)

• Upper estuary.
• Approximately 12km up river of mouth.
• East bank of river - very fluid and thus quite dangerous.
• No. of plates required: 3 (too dangerous to place more).
• No. of extra canes in transect: 0 (too dangerous to place extra).

Site 2: Southeast Lewes (OS: 424093)

Photo to be added shortly

• Upper estuary.
• Approximately 10.5-11km up river of mouth.
• Southeast bank of river - on accreting side of meander. Quite stony in places.
• No. of plates required: 3 (narrow).
• No. of extra canes for transect: 0 (too narrow).

Site 3: Southease Bridge (OS: 427054)

• Middle estuary.
• Approximately 5.5km up river of mouth.
• West bank of river - straight section.
• No. of plates required: 3 (narrow mudflat).
• No. of extra canes for transect: 2.

Site 4: Piddinghoe Moorings/Church (OS: 435032)

• Middle estuary.
• Approximately 3 to 3.5km up river of mouth.
• West bank of river - on slight meander.
• Extensive mud flats and small amount of salt marsh in mooring area.
• No. of plates required: 5 (wide mudflat).
• No. of extra canes for transect: 4.

Site 5: North of Industrial Estate at South Heighton (OS: 444025)

• Lower estuary.
• Approximately 2.5km up river of mouth.
• East bank of river.
• Extensive area of mud flat, in places perhaps a little stony.
• No. of plates required: 5 (wide mudflat).
• No. of extra canes for transect: 2

Site 6: Northwest of Denton Island (OS: 443018)

• Lower estuary.
• Approximately 2km up river of mouth.
• West bank of old meander which has been cut off from main flow of the river.
• Extensive mud flats with specific mooring areas.
• Number of plates required: 5 (wide mudflat).
• No. of extra canes for transect: 3.

Site 7: East Denton Island (OS: 446017)

• Lower estuary.
• Approximately 1.5 to 2km up river of mouth.
• West bank of river.
• Number of plates required: 3 (narrow mudflat).
• No. of extra canes for transect: 3.

Site 8: South Denton Island (OS: 446015)

• Lower estuary.
• Approximately 1.5km up river of mouth.
• North bank of old meander which has been cut off from main flow of the river.
• Number of plates required: 5 (wide mudflat).
• No. of extra canes for transect: 1.