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XXVI.—Temperature Observations in Loch Earn. With a further Contribution to the Hydrodynamical Theory of the Temperature Seiche

Published online by Cambridge University Press:  06 July 2012

E. M. Wedderburn
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Extract

There are a number of gaps which exist in our knowledge of the temperature changes which occur in fresh-water lakes. The broad lines on which the changes occur are fairly well known, but on almost every point there is a lack of detailed knowledge, and every investigation shows new problems requiring attack. One of the most interesting of these problems is the causation of the temperature seiche, and the effect of varying meteorological conditions. The problem is a difficult one, as the factors to be taken into consideration are so numerous, and the data from which to form conclusions are difficult to procure. We must first obtain an accurate knowledge of the changes which are occurring in the body of water under consideration—not only at one point but at all points, and this necessitates observations at frequent intervals of time, at numerous depths, made from several points on the surface of the loch. As yet there are no satisfactory self-recording instruments by means of which we can record the temperature of water at a considerable depth below the surface, and recourse must be had to the reading of mercury thermometers.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 48 , Issue 3 , 1913 , pp. 629 - 695
Copyright
Copyright © Royal Society of Edinburgh 1913

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References

page 631 note * Mr Herbert Bell, M.A., B.Sc, Edinburgh, was in charge of Station No. I.; Mr W. M'Clelland, Edinburgh, of No. II.; Mr A. J. Ross, M.A., Killin, of No. III.; Mr W. Watson, M.A., B.Sc, Edinburgh, of No. IV.; and Mr W. Malloch, Perth, of No. V. The other observers were:—Messrs R. K. Butchart, W. Innes, T. G. Ironside, M.A., B.Sc, W. Liddell, W. G. M'Ewan, J. Mackie, M.A., B.Sc, D. MacOwan, M.A., B.Sc, John Marshall, James Mechie, C. W. B. Normand, M.A., B.Sc, V. E. Paske, E. G. Ritchie, G. Shearer, T. M. Steven, J. G. Sutherland, M.A, and A. W. Young. Sir John Murray lent several reversing thermometers, and a current-meter; the Director of the Meteorological Office, thermographs, sunshine recorder, and parts of anemograph; Professor Niven, Aberdeen, the anemograph'; the Scottish Meteorological Office, rain-gauges and thermometer screens. Dr W. S. Bruce also kindly offered the use of a reversing thermometer.

page 635 note * See explanation of diagrams, p. 652.

page 638 note * See explanation of diagrams, p. 652.

page 640 note * See explanation of diagrams, p. 652.

page 642 note * See explanation of diagrams, p. 652.

page 643 note * See “Temperature of Scottish Lakes,” Bathymetrical Survey of Scottish Lochs, vol. i. p. 122.

page 647 note * “The Hydrodynamical Theory of Seiches,” Trans. Roy. Soc. Edin., xli. (iii.) p. 599.

page 650 note * Trans. Roy. Soc. Edin., xli. (iii.) p. 823.