A greater number of large "planetary sized waves" in the atmosphere that move from the lower atmosphere into the upper atmosphere were responsible for the smaller Antarctic ozone hole this fall, according to NASA researchers. The September 2002 ozone hole was half the size it was in 2000. However, scientists say that these large-scale weather patterns in the Earths atmosphere are not an indication that the ozone layer is recovering.
Paul Newman, a lead researcher on ozone at NASAs Goddard Space Flight Center, Greenbelt, Md., said that large scale weather patterns have an affect on ozone when large "planetary sized waves" move up into ozone layer. If the waves are more frequent and stronger as they move from the surface to the upper atmosphere, they warm the upper air. Such weather phenomena are known as "stratospheric warmings."
The stratosphere is an atmospheric layer about 6 to 30 miles above the Earths surface where the ozone layer is found. Ozone breaks down more easily with colder temperatures. A long wave or planetary wave is a weather system that circles the world. It resembles a series of ocean waves with ridges (the high points) and troughs (the low points).
Cynthia M. O’Carroll | EurekAlert!
Researchers reveal how microbes cope in phosphorus-deficient tropical soil
23.01.2018 | DOE/Oak Ridge National Laboratory
Radioactivity from oil and gas wastewater persists in Pennsylvania stream sediments
22.01.2018 | Duke University
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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