Optical fibres made of topological photonic crystals allow improved versatility and control across the modes and polarization of light they transmit. Compositionally, photonic crystals contain bandgaps to prevent the passage ...
A University of Utah study suggests something amazing: Periodic changes in winds 15 to 30 miles high in the stratosphere influence the seas by striking a vulnerable "Achilles heel" in the North Atlantic and changing mile-deep ...
Earth Sciences
Sep 23, 2012
9
0
Events in the stratosphere are making long-range weather in Northern Europe easier to forecast, researchers at LMU have discovered.
Earth Sciences
Mar 15, 2024
0
503
The Space Climate Research Group at the University of Oulu, Finland has been studying the effects of energetic particle precipitation from space, more commonly known as the aurora borealis or Northern Lights, on winter weather ...
Planetary Sciences
Feb 16, 2024
2
160
Light is composed of electric and magnetic fields that oscillate perpendicular to each other. When these oscillations are restricted, say, along a plane, it results in polarized light. Polarized light is of great importance ...
Optics & Photonics
Mar 27, 2023
0
413
Many people are familiar with the hole in the ozone layer over Antarctica, but what is less well known is that occasionally, the protective ozone in the stratosphere over the Arctic is destroyed as well, thinning the ozone ...
Earth Sciences
Jul 7, 2022
0
177
"Some say the world will end in fire," wrote Robert Frost a century ago. The poet described one popular take on the world's end before shifting to its apocalyptic opposite, writing, "some say in ice."
Environment
Dec 16, 2021
0
472
A dust storm that engulfed Mars in 2018 destroyed a vortex of cold air around the planet's south pole and brought an early spring to the hemisphere. By contrast, the storm caused only minor distortions to the polar vortex ...
Planetary Sciences
Jul 23, 2021
0
571
A CIRES-led team has uncovered a critical connection between winds at Earth's equator and atmospheric waves 6,000 miles away at the South Pole. The team has found, for the first time, evidence of a Quasi-Biennial Oscillation ...
Earth Sciences
Aug 17, 2020
1
212
Winter weather patterns in North America are dictated by changes to the polar vortex winds high in the atmosphere, but the most significant cold snaps are more likely influenced by the tropics, scientists have found.
Earth Sciences
Dec 27, 2019
1
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