The Mathematics Department at Humboldt offers strong undergraduate programs in mathematics* and mathematics education.*
(*Please note that MATH 415 is now Real Analysis I.)
In addition, the Department offers a graduate program in mathematical modeling as an option in the Environmental Systems Graduate Program.
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Math Colloquium
Thursday, December 3, 2009
4 p.m. Behavioral and Social Sciences Building 166
THERMAL EVOLUTION OF FLUID PERMEABILITY
AND MICROSTRUCTURE IN SEA ICE
Kenneth Golden , Professor of Mathematics,
University of Utah
Fluid flow through porous sea ice mediates a broad range of geophysical and biological processes such as snow-ice formation, the evolution of ice pack albedo, and nutrient replenishment for microbial communities living in brine inclusions. We will describe recent advances in using percolation, hierarchical, and network models to predict the fluid permeability of sea ice, and rigorous diffusion-based methods for bounding such transport coefficients.
We'll also discuss X-ray CT imaging of the brine microstructure
and connectivity analysis of random graphs derived from the tomographic images. Our work will help in predicting how global warming may affect Earth's sea ice packs and how polar ecosystems may respond. Related results on electromagnetic properties will help in monitoring ice thickness and the impact of climate change on the polar marine environment.
The Pre-Colloquium Tea takes place in the 3rd floor of the BSS Open Alcove area at 3:30 p.m.
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The Department of Mathematics and Computing Science is located on the third floor of the Behavioral and Social Sciences (BSS) Building Room 320. Telephone: (707)826-3143. Fax: (707)826-3140.
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