School of Earth, Energy and Environmental Sciences
Showing 1-10 of 37 Results
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Elizabeth Hadly
Paul S. and Billie Achilles Professor in Environmental Biology, Senior Fellow at the Woods Institute for the Environment and Professor, by courtesy, of Geological Sciences
Current Research and Scholarly InterestsElizabeth Hadly and her lab probe how perturbations such as climatic change and human modification of the environment influence the evolution and ecology of animals.
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Tyler Hall
Ph.D. Student in Geological Sciences
BioI am a PhD student interested in the quantification of subsurface uncertainty, with four years of experience at Freeport-McMoRan's copper mine at Bagdad, Arizona.
In the context of mineral exploration, how can we determine the priority of data collection? The ultimate goal is to make a discovery, but often our datasets contain significant bias, which needs to be addressed. It may be that we need to collect data in areas that we know do not contain a mineral deposit, but will still add value to our models. Where do we collect this "negative" data, and how can we make sure we only collect as much data as necessary?
Due to the deterministic nature of some spatial interpolation (inverse distance weighting, nearest neighbor, splines), exploration datasets also contain bias introduced during interpolation. What sampling density do we need to reasonably apply these common techniques? When does it make more sense to use kriging or SGSIM?
Measuring uncertainty often involves Monte Carlo, which is computationally expensive. Intelligently deploying computational resources relies on addressing the underlying assumptions of our data, and aligning our goals with "reasonable" conclusions.
