Researchers have modified the European Incoherent Scatter Svalbard radar to potentially provide detailed information of even a single event in the polar ionosphere. Oksavik et al. demonstrate a new observation mode for the EISCAT instrument with the potential for monitoring small-scale flow variations in the Earth-space boundary.
The authors used the technique to provide high-resolution data for the flow patterns surrounding a single poleward-moving auroral form (PMAF) event, a phenomenon associated with magnetic storms and substorms seen from the polar cap. PMAF events have been studied for more than 20 years as precursors to larger ionospheric disturbances.
The researchers suggest that a more specific understanding of a single ionospheric event can help them better understand the larger phenomena that disrupt the planetary magnetic field and affect Earth systems, including communication equipment to satellite transmissions.
Title: High-resolution observations of the small-scale flow pattern associated with a poleward moving auroral form in the cusp
Kjellman Oksavik | Geophysical Research Letters
Strength of tectonic plates may explain shape of the Tibetan Plateau, study finds
25.07.2017 | University of Illinois at Urbana-Champaign
NASA flights gauge summer sea ice melt in the Arctic
25.07.2017 | NASA/Goddard Space Flight Center
Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers
Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...
Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.
At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...
3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects
A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
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25.07.2017 | Physics and Astronomy
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25.07.2017 | Life Sciences