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Clyde Sea hydrography

Published online by Cambridge University Press:  05 December 2011

A. Edwards ,
M. S. Baxter ,
D. J. Ellett ,
J. H. A. Martin ,
D. T. Meldrum  and
C. R. Griffiths
A. Edwards
Affiliation:
Scottish Marine Biological Association, Dunstaffnage Marine Research Laboratory, P.O. Box 3, Oban, Argyll PA34 4AD, Scotland
M. S. Baxter
Affiliation:
Scottish Universities Research and Reactor Centre, East Kilbride, Glasgow G75 OQU, Scotland
D. J. Ellett
Affiliation:
Scottish Marine Biological Association, Dunstaffnage Marine Research Laboratory, P.O. Box 3, Oban, Argyll PA34 4AD, Scotland
J. H. A. Martin
Affiliation:
Department of Agriculture and Fisheries for Scotland, Victoria Road, P.O. Box 101, Aberdeen AB9 8DB, Scotland
D. T. Meldrum
Affiliation:
Scottish Marine Biological Association, Dunstaffnage Marine Research Laboratory, P.O. Box 3, Oban, Argyll PA34 4AD, Scotland
C. R. Griffiths
Affiliation:
Scottish Marine Biological Association, Dunstaffnage Marine Research Laboratory, P.O. Box 3, Oban, Argyll PA34 4AD, Scotland
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Synopsis

A front on the Great Plateau separates tidally mixed water of the North Channel from quieter less saline surface layers of the Outer Firth. These water bodies exchange about 1·6 × 104m3 s−1, leading to a residence time of two months in the Outer Firth surface layers. The position of the front is determined by the balance of mixing and buoyancy supply. The wind modulates weak tidal currents in the Outer Firth by driving surface currents and setting up deeper compensation flows. Deep water in the Arran Deep and Kilbrannan Sound is irregularly renewed by inflow of dense water over the Eastern Plateau from autumn to spring of about 1 × 104m3 s−1 but stagnates in summer below a thermocline. A minor part of this renewal comes over the Davaar sill into Kilbrannan Sound.

Bottom water of the fjordic sea-lochs is isolated in summer and renewed during the winter. The renewals occur by density currents flowing in from the sills and these produce a characterising grading of the bottom sediments from coarse to fine away from the sills.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 90: The Environment of the Estuary and Firth of Clyde , 1986 , pp. 67 - 83
Copyright
Copyright © Royal Society of Edinburgh 1986

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References

Barnes, H. & Goodley, E.F.W. 1961. The general hydrography of the Clyde Sea area, Scotland. Bulletin of Marine Ecology 5, 112–150.Google Scholar
Craig, R. E. 1959. Hydrography of Scottish coastal waters. Marine Research 2.Google Scholar
CRPB. 1973, 1976, 1980, 1981. Annual Reports of the Clyde River Purification Board. East Kilbride: Clyde River Purification Board.Google Scholar
Curran, J. C. 1981. A finite clement model of population in the Clyde estuary: formulation, validation and utilisation. Applied Mathematical Modelling 5, 137–142.CrossRefGoogle Scholar
Dickson, J. H., Stewart, D. A., Thompson, R. & Turner, G. 1978. Palynology, palaeomagnetism and radiometric dating of Flandrian marine and freshwater sediments of Loch Lomond. Nature, London 274, 548–553.CrossRefGoogle Scholar
Dooley, H. D. 1979. Factors influencing water movements in the Firth of Clyde. Estuarine and Coastal Marine Science 9, 631–641.CrossRefGoogle Scholar
Dooley, H. D. & Steele, J. H. 1969. Wind driven currents near a coast. Deutsche hydrographische Zeitschrift 22, 213–223.CrossRefGoogle Scholar
Edwards, A. & Edelsten, D. J. 1976. Marine fish cages—the physical environment. Proceedings of the Royal Society of Edinburgh 77B, 61–74.Google Scholar
Edwards, A. & Edelsten, D. J. 1977. Deep water renewal of Loch Etive: A three basin Scottish fjord. Estuarine and Coastal Marine Science 5, 575–595.CrossRefGoogle Scholar
Edwards, A. & Sharples, F. 1986. Scottish sea lochs: a catalogue. Scottish Marine Biological Association and the Nature Conservancy Council.Google Scholar
Ellett, D. J. & Edwards, A. 1983. Oceanography and inshore hydrography of the Inner Hebrides. Proceedings of the Royal Society of Edinburgh 83B, 143–160.Google Scholar
Gade, H. G. & Edwards, A. 1980. Deep water renewal in fjords. In Fjord Oceanography, eds. Freeland, H. J., Farmer, D. M. & Levings, C. D. pp. 453–89. New York: Plenum.CrossRefGoogle Scholar
MacKay, D. W. & Halcrow., W. 1976. The distribution of nutrients in relation to water movements in the Firth of Clyde. In Freshwater on the Sea, eds. Skreslet, S., Leinebo, R., Matthews, J. B. L. & Sakshaug, E. pp. 109–118. Oslo: Association of Norwegian Oceanographers.Google Scholar
McKay, W. A. & Baxter, M. S. 1985. Water transport from the northeast Irish Sea to western Scotland coastal waters. Estuarine and Coastal Marine Science 21, 471–480.CrossRefGoogle Scholar
Mill, H. R. 1892. The Clyde Sea area. Transactions of the Royal Society of Edinburgh 36, 641–729.CrossRefGoogle Scholar
Mill, H. R. 1894. The Clyde Sea area. Transactions of the Royal Society of Edinburgh 38, 1–161.CrossRefGoogle Scholar
Mill, H. R. 1897. Report on physical observations bearing on the circulation of the water in Loch Fyne in April and September 1896. Annual Report of the Fisheries Board for Scotland 15, 262–279.Google Scholar
Milne, P. H. 1972. Hydrography of Scottish west coast sea lochs. Marine Research 3.Google Scholar
Neumann, G. & Pierson, W. J. 1966. Principles of physical oceanography. New York: Prentice Hall.Google Scholar
Pingree, R. D. & Griffiths, D. K. 1978. Tidal fronts on the shelf seas around the British Isles. Journal of Geophysical Research 83, 4615–4622.CrossRefGoogle Scholar
Pingree, R. D. & Maddock, L. 1977. Tidal residuals in the English Channel. Journal of the Marine Biological Association of the United Kingdom 57, 339–354.CrossRefGoogle Scholar
Poodle, T. 1986. Freshwater inflows to the Firth of Clyde. Proceedings of the Royal Society of Edinburgh 90B, 55–66.Google Scholar
Simpson, J. H. & Hunter, J. R. 1974. Fronts in the Irish Sea. Nature, London 250, 404–406.CrossRefGoogle Scholar
Simpson, J. H., Allen, C. M. & Morris, N. C. G. 1978. Fronts on the continental shelf. Journal of Geophysical Research 83, 4607–4614.CrossRefGoogle Scholar
Tett, P. B. (ed.) 1980. Phytoplankton and the fish kills in Loch Striven. Oban: Scottish Marine Biological Association.Google Scholar
Turner, J. S. 1973. Buoyancy effects in fluids. Cambridge University Press.CrossRefGoogle Scholar