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Changes in jet stream since 1960 responsible for uptick in extreme weather

Changes in jet stream since 1960 responsible for uptick in extreme weather

Science
Jan. 12 (UPI) -- Scientists have identified a link between jet stream variability during the last half-century and increases in extreme weather in Europe, including storms, flooding, drought, heatwaves and wildfires.Using tree rings from the British Isles and Mediterranean, scientists at the University of Arizona sussed out late-summer weather patterns across Western Europe going back nearly three centuries, to 1725."We find that the position of the North Atlantic Jet in summer has been a strong driver of climate extremes in Europe for the last 300 years," Valerie Trouet, a scientist at Arizona's Laboratory of Tree-Ring Research, said in a news release.The work of Trouet and her colleagues helped provide context for modern observations of the jet stream's seasonal patterns. Their data -- p...
Study explains why Jupiter's jet stream reverses course on a predictable schedule

Study explains why Jupiter's jet stream reverses course on a predictable schedule

Science
Dec. 19 (UPI) -- Scientists can finally explain why Jupiter's jet stream regularly reverses course -- like clockwork. The revelation could help scientists better understand similar equatorial jet stream oscillations found on Earth and Saturn.The latest research -- published this week in the Journal of Geophysical Research-Planets -- reveals that gravity waves are the primary driver of the reversal of Jupiter's equatorial jet stream.Researchers first discovered Earth's equatorial jet stream after watching ash from the 1883 eruption of the Krakatoa volcano being blown from east-to-west. Hot air balloons later confirmed the stratospheric current.The jet stream begins in the lower stratosphere and moves toward the upper troposphere, the lowest level of Earth's atmosphere. The current regularly...
Sky to stream midweek English Football League games after new £600m TV deal

Sky to stream midweek English Football League games after new £600m TV deal

Sports
Sky will be able to stream midweek Championship matches after agreeing a new £600m five-year domestic rights deal with the English Football League.All EFL clubs will be able to stream midweek league games via their websites if Sky are not broadcasting it live.The contract will run from 2019-2024, with the value of the rights increasing by 36% from the present agreement.Sky will also continue to broadcast the Carabao Cup, Checkatrade Trophy and play-offs until May 2024.Matches played between 14:45 BST and 17:15 BST will continue to be blocked from live streaming.From next season, Sky will be able to offer an interactive service for all midweek Championship fixtures."These negotiations came at what was an incredibly challenging period in the sale and acquisition of sports rights in the UK,"