European Directory of Marine Environmental Data (EDMED)

Data set information

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General
Data set name

Sediment levels at 30 sites in the Tamar estuary, south west England, between December 1981 and January 1983

Data holding centrePlymouth Marine Laboratory
CountryUnited Kingdom  United Kingdom
Time periodFrom December 1981 to January 1983
OngoingNo
Geographical area

Tamar Estuary, Plymouth, south west England

Observations 
Parameters

Sedimentation flux quantification in the water column; Sediment accumulation rate; Hydrolytic activity in sediment

Instruments

Sediment traps; sediment grabs

Description 
Summary

Seasonal movements of sediment in the Tamar estuary have been estimated by recording variations in sediment levels at 30 sites evenly distributed along the length of the estuary through a fourteen month period. The Tamar estuary, situated in the south west of England, extends 31km from a weir at Gunnislake to its mouth at Plymouth Sound. Thirty wooden poles, each 2m long and 4cm square, were treated with a wood preservative and driven vertically into the intertidal mud at roughly 1km intervals along the estuary. The poles were positioned such that they were uncovered at tidal elevations between low water neaps and low water springs. After allowing one month for site recovery from disturbance during installation, measurements of sediment level relative to each pole were taken monthly during spring tides at low water. The study was started in December 1981 and continued for 14 months.

OriginatorsPlymouth Marine Laboratory
References

Bale, A.J., Morris, A.W. and Howland, R.J.M. (1985) Seasonal sediment movement in the Tamar estuary., Oceanologica Acta, Vol 8(1): 1-6.

Availability 
OrganisationPlymouth Marine Laboratory
AvailabilityBy negotiation
ContactThe Director
Address

Plymouth Marine Laboratory
Prospect Place The Hoe
Plymouth
England
PL1 3DH
United Kingdom

Telephone+44 1752 633100
Facsimile+44 (0)1752 633101
Administration 
Collating centreBritish Oceanographic Data Centre
Local identifier1053027
Global identifier707
Last revised2009-10-19