One of the most important and interesting characteristics of a lake is its thermal structure. The heat content of a body of water is of vital importance in limnology. The metabolism, physiology, and behavior of aquatic organisms are related directly to the temperature of the aquatic environment. Extreme temperatures restrict the growth and distribution of plants, animals, and microbes. Because of the high specific heat of water, large volumes of water change temperature relatively slowly. Therefore, large lakes tend to moderate local climates, provide longer growing seasons for aquatic life, and serve as integrated recorders of recent climatic phenomena. For these and other reasons, the thermal structure and heat content of a body of water must be known with some degree of accuracy in limnological studies.
A bathtub filled with water at 0.5°C has a much greater heat content than does a glass filled with water at a temperature of 25°C.
KeywordsLatent Heat Bottom Sediment Short Wave Radiation Heat Budget Water Change Temperature
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- Hanson, E.B., A.S. Bradshaw, and D.C. Chandler. 1961. The physical limnology of Cayuga Lake, New York. Cornell Univ. Agric. Expt. Sta., Mem. No. 378:1–631Google Scholar
- Hutchinson, G.E. 1957. A Treatise on Limnology. Vol. 1. Wiley, New York. 1015 pp.Google Scholar
- Johnson, N.M., G.E. Likens, and J.S. Eaton. 1985. Stability, circulation and energy flux in Mirror Lake. pp. 108–127. In G.E. Likens, Editor. An Ecosystem Approach to Aquatic Ecology. Mirror Lake and Its Environment. Springer-Verlag, New York.Google Scholar
- McKnight, D.M., E.R. Blood, and C.R. O’Melia. 1996. Fundamental research questions in inland aquatic ecosystem science, pp. 257–278. In Freshwater Ecosystems: Revitalizing Educational Programs in Limnology. National Academy Press, Washington, D.C.Google Scholar
- Meier, M.F. 1964. Ice and glaciers, pp. 16–1 to 16–32. In C.T Chow, Editor. Handbook of Applied Hydrology. McGraw-Hill, New York.Google Scholar
- Neumann, J. 1953. Energy balance and evaporation from sweetwater lakes of the Jordan Rift. Bull. Res. Council Israel 2:337–357.Google Scholar
- Scott, IT. 1964. A comparison of the heat balance of lakes in winter. Tech. Rep. 13. Dept. of Meteorol., Univ. of Wisconsin, Madison. 138 pp.Google Scholar
- Sverdrup, H.U., M.W Johnson, and R.H. Fleming. 1942. The Oceans: Their Physics, Chemistry and General Biology. Prentice-Hall, Englewood Cliffs, N.J. 1087 pp.Google Scholar
- Wetzel, R.G. 1983. Limnology. 2nd Ed. Saunders Coll., Philadelphia. 858 pp.Google Scholar
- Wetzel, R.G. 1999. Limnology: Lake and River Ecosystems. 3rd Ed. Academic Press, San Diego (in press).Google Scholar
- Winter, T.C. 1985. Approaches to the study of lake hydrology, pp. 128–135. In G.E. Likens, Editor. An Ecosystem Approach to Aquatic Ecology. Mirror Lake and Its Environment. Springer-Verlag, New York.Google Scholar