rempel@uoregon.edu
rempel@uoregon.eduLinks to: STUDENT OPPORTUNITIES,
a biographical sketch,
publications, current courses (Winter 2009: Geology 462/562: Environmental Geomechanics, Geology 316: Intro. Hydrogeology) and the Geophysics Group website.
Alan maintains close
collaborations with Jim Rice for
studies of
fault mechanics, and with John
Wettlaufer for matters related to ice physics and premelting. Rempel, A. W. and B. A. Buffett, Formation and
accumulation of gas hydrate in porous media, Journal of
Geophysical Research - Solid Earth,
102, 10151-10164, 1997.
Rempel, A. W. and B. A. Buffett, Mathematical models of
gas hydrate
accumulation, In: Gas Hydrates,
Henriet, J.-P. and J. Mienert (eds.), Geological Society, London,
Special Publications, 137, 63-74, 1998.
Rempel, A. W. and M. G. Worster, The interaction between
a particle and an advancing solidification front, Journal of Crystal
Growth, 205, 427-440, 1999.
Rempel, A.W. and M.G. Worster, Particle trapping at an advancing
solidification front with interfacial-curvature effects,
Journal of Crystal Growth, 223, 420-432, 2001.
Rempel, A. W., E. D. Waddington, J. S. Wettlaufer
and M. G. Worster,
Possible displacement of the climate signal in ancient ice
by premelting and anomalous diffusion, Nature,
411, 568-571, 2001.
Rempel, A. W., J. S. Wettlaufer and M. G. Worster,
Interfacial premelting and the thermomolecular force: thermodynamic
buoyancy, Physical Review Letters, 87, 088501, 2001.
Rempel, A. W., J. S. Wettlaufer and E. D. Waddington,
Anomalous diffusion of multiple impurity species:
predicted implications for the ice-core climate records,
Journal of Geophysical Research - Solid Earth, 107,
2330, doi:10.1029/2002JB001857, 2002.
Rempel, A. W. and J. S. Wettlaufer,
Segregation, transport and interaction of climate proxies in
polycrystalline ice, Canadian Journal of
Physics, 81, 89-97, 2003.
Rempel, A. W. and J. S. Wettlaufer,
Isotopic diffusion in polycrystalline ice, Journal of Glaciology,
49, 397-406, 2003.
Rempel, A. W., J. S. Wettlaufer and M. G. Worster,
Premelting dynamics in a continuum model of frost
heave, Journal of
Fluid Mechanics, 498, 227-244, 2004.
Rempel, A. W.,
Englacial phase changes and intergranular flow above subglacial lakes, Annals of Glaciology, 40, 191-194, 2005.
Dash, J. G., A. W. Rempel and J. S. Wettlaufer,
The physics of premelted ice and its geophysical consequences, Reviews of Modern Physics, 78(3), 695-741, 2006.
Rempel, A. W. and J. R. Rice,
Thermal pressurization and onset of melting in fault zones, Journal of Geophysical Research - Solid Earth, 111, B09314, doi:10.1029/2006JB004314, 2006.
Rempel, A. W., The effects of flash-weakening and damage on the evolution of fault strength and temperature, AGU Monograph on Radiated Energy and the Physics of Earthquake Faulting, 263-270, 2006.
Rempel, A. W.,
The formation of ice lenses and frost heave, Journal of Geophysical Research - Earth Surface, 112, F02S21, doi:10.1029/2006JF000525, 2007.
Rempel, A. W., J. S. Wettlaufer and M. G. Worster,
Comment on "A quantitative framework for interpretation of basal ice facies formed by ice accretion over subglacial sediment" by Poul Christoffersen et al., Journal of Geophysical Research - Earth Surface, 112, F02036, doi:10.1029/2006JF000701, 2007.
Emerson, L. F. and A. W. Rempel,
Thresholds in the sliding resistance of simulated basal ice, The Cryosphere, 1, 11-19, 2007.
Rempel, A. W.,
A theory for ice--till interactions and sediment entrainment beneath glaciers, Journal of Geophysical Research - Earth Surface, 113, F01013, doi:10.1029/2007JF000870, 2008.
Rempel, A. W. and S. L. Weaver,
A model for flash weakening by asperity melting during high-speed earthquake slip, Journal of Geophysical Research - Solid Earth, 113, B11308, doi:10.1029/2008JB005649, 2008.
Rempel, A. W.,
Effective stress profiles and seepage flows beneath glaciers and ice sheets, Journal of Glaciology, in press.
Rempel, A. W.,
Transient Effective Stress Variations Forced by Changes in Conduit Pressure Beneath Glaciers and Ice Sheets, Annals of Glaciology, in press.
Rempel, A. W., Microscopic and environmental controls on the spacings and thicknesses of segregated ice lenses, Quaternary Research, in review.
Möhlmann, D.T.F. and A.W. Rempel, Liquid interfacial and melt water in planetary ices: Consequences for life, In: The Science of Solar System Ices, Springer, in review.
Assistant Professor, Department of Geological Sciences, University of Oregon, January 2005 - present.
Lecturer in Applied Mathematics, Division of Engineering and Applied Sciences, Harvard University, July 2003 - December 2004.
Postdoctoral Associate, Department of Geology and Geophysics, Yale University, July 2002 - June 2003.
Research Associate, Applied Physics Laboratory, University of Washington, June 2000 - June 2002.
Ph. D. (Applied Mathematics) Institute of Theoretical Geophysics, Department of Applied Mathematics and Theoretical Physics, University of Cambridge. Dissertation: The Dynamics of Premelted Films, with Geophysical Applications (advised by Grae Worster).
M. Sc. (Geophysics) Department of Geophysics and Astronomy (now Earth and Ocean Sciences), University of British Columbia. Dissertation: Theoretical and Experimental Investigations into the Formation and Accumulation of Gas Hydrates (advised by Bruce Buffett).
B. A. Sc. (Engineering Physics) University of British Columbia.
Projects focussed on gas hydrates, glaciology and earthquake fault mechanics. Contact me to learn more.
Alan's research is directed towards understanding
the fundamental interactions that govern
a broad spectrum of geophysical processes.
Much of his work centers on the fluid mechanics, solid mechanics
and thermodynamics that control the
interactions between solids and fluids, especially near the melting
transition. He is
particularly interested in problems that span a range of
length and time scales, many natural examples of which
are further motivated by a desire to explore the
environmental conditions of the distant past. A central theme of his
research involves using homogenized
models to translate from the microscopic
length-scales over which the controlling physical
interactions operate, to the much larger
length-scales at which their effects are observed. Ongoing research
topics include investigations into
how the presence of premelted liquid at sub-zero temperatures can affect
the preservation of climate signals in ice cores, and what
role frictional heating and the melting of fault gouge plays in the dynamics
of earthquakes.
Publications:
Submitted Manuscripts:
Biographical sketch: