Lev Tarasoff

Work Address:
Department of Physics
University of Toronto
60 St. George St.,
Toronto, Ontario, M5S 1A7
tel: home office(telecommute): 821-3555
tel: Toronto office(416)-946-3019
fax: (416)-978-8905
email: lev.tarasoff[aT)utoronto{DoT]ca


Professional appointments

University of Toronto, Dept. of Physics, Toronto, Ont. 1999 to present
Research Associate, glacial cycle modelling and analyses. Current focus includes reconstruction of ice-sheet histories of the last glacial cycle using coupled climate, ice-sheet, surface drainage, and geodynamic models calibrated against gravitational observations, relative sea level data, glacial geology, and other paleo proxies. The reconstructions are then used to further constrain our understanding of the dynamics of the glacial cycle and millenial-scale climate variability during glacial periods. I am also exploring the dynamical role of atmospheric carbon dioxide in the ice-age cycle using simple carbon-cycle models. My work heavily involves model design and construction.

University of Georgia, Dept. of Geography, Athens, Ga, 1998-1999
Research Scientist. Continuation of climate dynamics research and teaching responsibilities.


University of Toronto, Dept. of Physics, Toronto, Ont. 1995-1998
Postdoctoral Fellow. Exploration of the dynamics of the ice-age cycle using coupled climate and ice-sheet models in order to elucidate the critical processes and feedbacks responsible for the 100-thousand year glacial cycle. This work involved both the development and modification of climate, geodynamic, and 3-dimensional ice-sheet computer models.


Teaching

University of Georgia, Dept. of Geography, 1998-1999
``Weather and Climate'' course with 100 and 200 class sizes consisting of students from numerous arts programs.

Physics Department, University of Guelph, Ont., 1982-1984
Teaching Assistant.


Education

University of Toronto, Dept. of Physics, Ph.D. 1992
Thesis explored issues and models relating to quantum gravity. Specific topics analyzed included conservation of quantum coherence at a black hole horizon, operator regularization of quantum gravity, and 2-dimensional classical and quantum models of gravity.

Moscow State University, fall/winter 1989-1990
Intensive written and spoken Russian immersion courses. Informal study of large-scale social change.

University of Toronto, Dept. of Physics, M.Sc. 1985

University of Guelph, Department of Physics, B.Sc.(distinction) 1984

Lev Tarasoff - page 2

Work Experience

Hillside Farm, Ont., 1984-1995
Owner and operator of farming and on-farm milling operation.

Physics Department, University of Guelph, Ont., 1982
Technician (summer). Computer modelling of 3-body interactions in molecular spectroscopy.

Presentations

2005	June, CANQUA, Winnipeg,
	A calibrated deglacial chronology for North America:
	an inferred Arctic trigger for the Younger Dryas
2004	May, Joint CGU/AGU assembly, Montreal,
	A new calibrated deglacial drainage history for North America and
	evidence for an Arctic trigger for the Younger Dryas
	Same, A Bayesian Calibrated Deglacial History for the North American
	Ice Complex
	April, EGU Assembly, Nice, France,
	A Bayesian calibration methodology applied to ice-sheet modelling
	Same, The northwest Agassiz outlet and it's role in initiating
	the Younger Dryas
2003	May, Canadian Geophysical Union, Banff,
	Bayesian calibration of a model of the deglaciation of the
	North American ice-sheet complex
	April, EGS/EUG/AGU Joint Assembly, Nice, France,
	Large ensemble analyses of Laurentide ice-sheet evolution
	Same, High resolution borehole tracer-tracking in a 3-D model
	of Greenland Ice-Sheet evolution
2002	June, IGS meeting on Fast Glacier Flow, Yakutat,
	The impact of fast-flow processes on the geometry
	of the Laurentide ice sheet
	May, Canadian Geophysical Union, Banff,
	What does it take to get an dynamical ice-sheet model to match
	geo/glaciological inferences and RSL constraints?
2001	March, European Geophysical Society, Nice,
	The relative sea level constraint on Greenland ice-sheet evolution
2000	May, Canadian Geophysical Union, Banff,
	Ice Sheet Modelling, Geophysical Inversion, And Lithospheric Thickness
	June, GEOCAN 2000, Calgary,
	Dynamics of Pleistocene Ice Age Cycles

Lev Tarasoff - page 3

1999	March, European Geophysical Society, Den Haag,
	On Laurentide ice-sheet aspect ratio in Glen flow law based models
1997	May, Canadian Geophysical Union, Banff,
	Why the 100kyr cycle? (How?)
1996	American Geophysical Union Fall Meeting, San Francisco, USA.
	International Symposium on Representation of the Cryosphere
	in Climate and Hydrological Models, Victoria, Canada.
	Canadian Geophysical Union, Banff, Canada.

1995	EISMINT Summer School, Grindelwald, Switzerland.

Invited Presentations:

2004	May, Dept. of Earth Sciences, University of Waterloo, Waterloo,
	Ice, water, and a deglacial hiccup: Constraining the deglaciation
	of North America and some climatic implications
2003	May., 7th Canadian Geiod Workshop, Calgary,
	New results from a calibrated model with coupled geodynamics and cryodynamics
2001	Nov., Joint CSHD/CIAR special meeting on Earth system evolution, Vancouver,
	The Late Pleistocene glacial history of Greenland:
	New results from a model with coupled geodynamics and cryodynamics
	May, Canadian Geophysical Union, Ottawa,
	Dynamical ice-sheet models and their incorporation into geophysical inverse
	reconstructions of Wisconsin North American ice sheets
	April, LGGE (CNRS, Grenoble, France),
	The relative sea level constraint on Greenland ice-sheet evolution
1998	March, Laboratoire de Modelisation du Climat et de l'Environement, Saclay, France.
	The Dynamics of the Ice-Age cycle
	March, EISMINT workshop on coupling climate and ice sheet models, Aussois, France.
	Lessons and issues from ice sheet models coupled to simple climate models
	Jan., Dept. of Oceanography, Texas A & M, Texas, USA.
	Lessons and Questions from coupled ice sheet and climate models
1997	Dec., American Geophysical Union Fall Meeting, San Francisco, USA.
	A Model of the 100 kyr Ice-Age Cycle
	Sept., Dept. of Geography, U. of Georgia, Athens, Georgia, USA.
	What makes the ice-age clock tick?
	Sept., EISMINT Model Intercomparison Workshop, Grindelwald, Switzerland.
	Thermo-mechanical modelling of the last 100kyr ice-age cycle

Lev Tarasoff - page 4

Awards:

University of Toronto Fellowship, 1989.

Natural Science and Engineering Research Council Post-Graduate Fellowship, 1984-1989.

University of Toronto MacLaughlin Entrance Award, 1984.

Miscellaneous departmental awards, University of Guelph, 1980-1983.

University of Guelph Entrance Scholarship, 1980.

Publications:

W. R. Peltier, L. Tarasov, G. Vettoretti and L. P. Solheim, Climate Dynamics in Deep Time: Modelling the ``Snowball Bifurcation'' and Assessing the Plausibility of its Occurrence, in Multidisciplinary Studies Exploring Extreme Proterozoic Environmental Conditions, Amer. Geophys. Union, in press.

Lev Tarasov and W.R. Peltier, Arctic freshwater forcing of the Younger Dryas cold reversal Nature, 435, 662-665, 2005.

Lev Tarasov and W.R. Peltier, A geophysically constrained large ensemble analysis of the deglacial history of the North American ice sheet complex Quat. Sci. Rev.,, 23, 359-388, 2004.

Lev Tarasov and W.R. Peltier, Greenland glacial history, borehole constraints and Eemian extent, J. Geophys. Res., 108(B3), 2124-2143, 2003.

Lev Tarasov and W.R. Peltier, Greenland glacial history and local geodynamic consequences, Geophys. J. Int., 150, 198-229, 2002.

L. Tarasov and W.R. Peltier, Laurentide ice sheet form in Glen flow law based models, Ann. Glaciol., 30, 177-186, 2000.

W.R. Peltier, D.L. Goldsby, D.L. Kohlstedt, and L. Tarasov, Ice-age ice sheet rheology: constraints from Last Glacial Maximum form of the Laurentide ice sheet, Ann. Glaciol., 30, 163-176, 2000.

S.J. Marshall, L. Tarasov, G.K.C. Clarke and W.R. Peltier, Glaciology of Ice Age cycles: Physical processes and modelling challenges, Can. J. Earth Sci., 37, 769-793, 2000.

Payne, A. J. and 10 others, Results from the EISMINT model intercomparison: the effects of thermomechanical coupling, J. Glaciol., 46, 227-238, 2000.

L. Tarasov and W.R. Peltier, The Impact of Thermo-mechanical Ice sheet Coupling on a Model of the 100 kyr Ice-Age Cycle, J. Geophys. Res., 104, 9517-9545, 1999.

W.T. Hyde, T.J. Crowley, L. Tarasov and W.R. Peltier, The Pangean Ice Age: Studies with a coupled Climate-Ice Sheet Model, Clim. Dyn., 12, 100-115, 1999.

L. Tarasov and W.R. Peltier, A High-Resolution Model of the 100 kyr Ice-Age Cycle, Ann. of Glaciol., 25, 58-65, 1997.

L. Tarasov, and W.R. Peltier, Terminating the 100 kyr Ice Age cycle , J. Geophys. Res., 102, 21665-21693, 1997.

D, Bienzle, J.H. Lumsden, E. Grift, R.M. Jacobs, and L. Tarasoff, Comparison of two automated hematology analyzers in domestic animals, Comp. Haemat. Internat., 4, 162-165, 1994.

R.B. Mann, L. Tarasoff, and A. Zelnikov, Brick walls for black holes, Class. Quant. Grav., 9, 1487-1494, 1992.

Lev Tarasoff - page 5

R.B. Mann, A. Shiekh, and L. Tarasoff, Classical and quantum properties of two-dimensional black holes, Nucl. Phys., B341, 134-154, 1990.

R.B. Mann, L. Tarasoff, D.G.C McKeon, and T. Steele, Operator regularization and quantum gravity, Nucl. Phys., B311, 630-672, 1988.

L. Tarasoff and R.B. Mann, Shifts of Integration Variable in the Light-Cone Gauge, Modern Phys. Let., A1, 525-533, 1986.

Manuscripts under Review

L. Tarasov and W.R. Peltier, A calibrated deglacial drainage chronology for the North American continent: Evidence of an Arctic trigger for the Younger Dryas, Quat. Sci. Rev..

Manuscripts in preparation

L. Tarasov, R. Neal, and W.R. Peltier, An objectively calibrated model of Laurentide deglaciation.

R. Neal, L. Tarasov, and W.R. Peltier, Bayesian calibration of complex physical models: a case study of a dynamical model of the Wisconsin deglaciation of the North American ice sheets using geophysical constraints

L. Tarasov, G. Vettoretti, and W.R. Peltier, An asynchronously coupled 3D GCM-ice-sheet model of last glacial inception,

Instructional Enhancement:
Participation in Teaching and Learning Group Seminar (fall, 1998) and individual consultation with the Office of Instructional Support, University of Georgia, Athens, Ga.

Participation in and facilitation of various workshops in community-building and group facilitation. Level II community coach training (soccer). Facilitation of theater for social change workshops.