New research may improve long-term forecasting skills
The above map shows a snapshot of surface temperature in the Northern Hemisphere, with weather systems moving poleward. In the paper, the authors demonstrate that this process is influenced by the presence of a stratospheric jet.
The authors, left to right: Andrew Charlton, postdoctoral student; Matthew Wittman, graduate student and principal author; and Lorenzo Polvani, Professor of Applied Physics and Applied Mathematics & Earth and Environmental Sciences and Director of the IGERT Joint Program in Applied Mathematics and Earth and Environmental Sciences.
by Jennifer Freeman
Three members of Columbia’s Department of Applied Physics and Applied Mathematics have used a simple climate model to demonstrate how the weather systems and storms we experience may be influenced by disturbances in the Earth’s stratosphere, the upper layer of atmosphere between 10 and 30 miles high. This Earth Institute research was recently highlighted by the American Geophysical Union, following recent publication in the journal Geophysical Research Letters. “Our research shows that changes to the strength of winds in the stratosphere cause changes to tropospheric weather systems” explained lead-author Matthew Wittman.
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The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
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