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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Physicists have developed a technique based on optical microscopy that can be used to create images of atoms on the nanoscale. In particular, the new method allows the imaging of quantum dots in a semiconductor chip. Together with colleagues from the University of Bochum, scientists from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute reported the findings in the journal Nature Photonics.
Microscopes allow us to see structures that are otherwise invisible to the human eye. However, conventional optical microscopes cannot be used to image...
On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.
We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
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