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causes an inflow of environmental fluid at a rate that is proportional to the average upward velocity. When Morton and Turner wrote the manuscript documenting the agreement between theory and experiment they discovered that Taylor was also preparing a âmuch delayed noteâ on the subject. Taylor included an explanation at the end of the Morton paper explaining the circumstances. He did add some distinctive touches to the article including estimates of the height of rise of smoke from an autumn bonfire (150 ft) and a burning town (3200 m) with specified burning rates and atmospheric conditions; and as noted by Turner - the mixed units are Taylor's.
240:, especially in the fostering of participation from all parts of Australia. In 2000 the Society renamed its AMOS Medal after him and commenced awarding the Morton Medal as a "biennial award recognising leadership in meteorology and/or oceanography and/or related fields, with particular emphasis on education and development of young scientists, and personal example in research". Winners of the medal include Matthias Tomczak, Gary Meyers, Andy Pitman,
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in 2016) dedicated to Morton's work and impact was published in 2014. It contained a series of invited review papers by prominent research scientists from around the world who interacted with Morton on the many topics he was involved in throughout his career. As well as plumes, he worked on tropical
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recalled that
Batchelor suggested that he conduct some laboratory experiments to test Morton's theory of the rise of plumes and âbuoyant cloudsâ in stratified surroundings. The starting point was an entrainment hypothesis proposed by Taylor which assumes that the rising turbulent motion in the plume
140:. His thesis work was published in paper that became a classic of the fluid dynamics literature - the much cited Morton, Taylor and Turner result. The study developed an explanation for a source of buoyancy being injected into a
104:, where he completed a double degree in mathematics and physics. Whilst at the University of Auckland he was an active member of the mountaineering club and climbed with
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Raymond D.J., Gjorgjievska S., Sessions S. Fuchs Ĺ˝. (2014) Tropical cyclogenesis and mid-level vorticity. Australian
Meteorological and Oceanographic Journal 64, 11-25.
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of light fluid will rise in a stably stratified fluid. These predictions where then compared with laboratory experiments created using a stratified salt solution.
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In 1953 Morton married Alison
Gladding, who he had met in the University of Auckland mountaineering club, at the Marylebone Presbyterian Church near
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An example of a plume - in this case smoke from controlled oil fire in Gulf of Mexico, Louisiana, after
Deepwater Horizon Oil Spill, May 5, 2010.
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After his death in 2012 a special issue of the journal
Australian Meteorological and Oceanographic Journal (which changed its name to
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This article is about the
Australian/New Zealand mathematician. For the American journalist and television news correspondent, see
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in the behaviour of fluids. In lectures he would often state âvorticity is the flow fieldâ. He retired as chair in 1991.
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within the department of mathematics. As well as his influential work on plumes he emphasized the importance of
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Turner, J.S., 1997. GI Taylor in his later years. Annual Review of Fluid
Mechanics, 29(1), pp.1-25.
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Reeder M. Smith R. (2014) Preface. Australian
Meteorological and Oceanographic Journal 64, 1-4.
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where he worked until 1967. During this time he developed an interest in the propagation of
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80:(11 April 1926 â 15 September 2012) was an Australian/New Zealand applied mathematician.
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Proceedings of the Royal
Society of London. Series A. Mathematical and Physical Sciences
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1949 - Rutherford
Fellowship for study at St John's College, University of Cambridge.
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Baines, P.G., 2014. Plumes, entrainment and BR Morton. Australian Meteorolog, 474.
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Morton, B. R.; Taylor, Geoffrey Ingram; Turner, John Stewart (24 January 1956).
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In 1967, Morton was appointed to a chair in applied mathematics at
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After his Ph.D. Morton briefly took up an academic appointment at
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Department of Applied Mathematics and Theoretical Physics (DAMPT)
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Morton, B.R., 1964. Fire and wind. Science Progress, pp.249-258.
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and buoyancy, the study predicted the final height to which a
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in London. They had three daughters - Clare, Janne and Anna.
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Smith, Roger; Manton, Michael and Reeder, Michael. (2012).
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Morton contributed to the running and organisation of the
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cyclone formation, as recognised in the special issue.
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Journal of Southern Hemisphere Earth Systems Science
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Mathematician an inspired lecturer and team builder
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Australian Meteorological and Oceanographic Society
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218:vorticity
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