Efraim Halfon, Ph.D.E-mail: info@butx.comCurriculum vitaeAcknowledgments |
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Efraim Halfon, Ph.D.E-mail: info@butx.comCurriculum vitaeAcknowledgments |
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My research is focused on several areas, some theoretical, such as the identification of the best model structure and the computation of prediction uncertainty, some more applied, such as the prediction of fate of toxic contaminants in aquatic environments and the quantification of their environmental hazard. I developed the model TOXFATE (Publications and software and developed a new method of ranking based on graph theory and Hasse diagrams.
I am also interested in scientific visualization to display data collected in lakes using volume visualization (example Hamilton Harbour, Ontario, Canada), for a 3D-static picture, and I developed a program, Data Animator, to display the dynamic behavior (view animations) of physical, biological and chemical parameters in lakes.
Since I am also interested in letting others understand the problems of the Great Lakes I developed a CD-ROM called "Discover the Great Lakes" now out of print because Environment Canada (a bilingual government department) did not have the funds to develop a French version.
For your convenience I have split the list of my publications according to the research area.
Mathematical Modelling SimulationEnvironmental Hazard and Ranking Scientific visualizationComplete list of publications
Significant Publications:
Halfon, E. ( Ed.) 1979. Theoretical Systems Ecology: Advances and Case Studies, Academic Press, NY, 544 pp.
Halfon, E. ( Ed.) 1995. Special issue on the use of computer graphics and visualization. J. Biological Systems, Vol. 2.
Discover the Great Lakes, 1998. CD-ROM, Environment Canada
Halfon, E., T.J. Simons and W.M. Schertzer. 1990. Modelling the spatial distribution of seven halocarbons in Lake St. Clair in June 1984 using the TOXFATE model. J. Great Lakes. Res., 16:90-112.
Halfon, E. and Howell, M. 1995. Visualization of limnological data as two- and-three-dimensional computer generated animations. J. Biol. Systems. 4:3-25.
Halfon, E. and Allan, R.J. 1995. Modelling the fate of PCBs and Mirex in aquatic ecosystems using the TOXFATE model. Environment International, 21: 557-569.
Halfon E., N. Schito and R. E. Ulanowicz. 1996. Energy flow through the Lake Ontario food web: Conceptual model and an attempt to mass balance, Ecological Modelling, 86:1-36.
Halfon, E., Galassi, S., Brüggemann, R., and Provini, A. 1996. Selection of priority properties to assess environmental hazard of pesticides. Chemosphere 33:1543-1562
Brüggemann, R. and Halfon, E. 1997. Comparative Analysis of Nearshore Contaminated Sites in Lake Ontario: Ranking for Environmental Hazard, J. Environ. Sci. Health, 32: 277-292