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Latest Rossby wave Stories

2014-06-23 13:20:37

University of Exeter New study shows drought, heat waves and cold spells linked to air flow changes Variations in high-altitude wind patterns expose particular parts of Europe, Asia and the US to different extreme weather conditions, a new study has shown. Changes to air flow patterns around the Northern Hemisphere are a major influence on prolonged bouts of unseasonal weather – whether it be hot, cold, wet or dry. The high altitude winds normally blow from west to east around...

2013-10-28 23:23:19

Scientists have fingerprinted a distinctive atmospheric wave pattern high above the Northern Hemisphere that can foreshadow the emergence of summertime heat waves in the United States more than two weeks in advance. The new research, led by scientists at NCAR, could potentially enable forecasts of the likelihood of U.S. heat waves 15-20 days out, giving society more time to prepare for these often-deadly events. BOULDER, CO (PRWEB) October 28, 2013 Scientists have fingerprinted a...

Predicting Heat Waves
2013-10-28 10:37:52

Brett Smith for redOrbit.com - Your Universe Online New research published on Sunday in the journal Nature Geoscience could give meteorologists the ability to predict deadly summer heat waves more than two weeks ahead of time. In the study, scientists at the National Center for Atmospheric Research (NCAR) used a 12,000-year simulation of atmospheric patterns over the Northern Hemisphere to identify a distinctive "wavenumber-5" pattern that significantly increased the odds of a major...

Wave Patterns In The Atmosphere Help Explain Weather Extremes
2013-02-26 11:51:00

April Flowers for redOrbit.com - Your Universe Online In recent years, the world has suffered from severe regional weather extremes such as the heat wave in the US in 2011, or the one in Russia in 2010 that coincided with the unprecedented Pakistan flood. There is one common physical cause behind these individual events, according to a new study from the Potsdam Institute for Climate Impact Research [PIK]. The findings of the study, published in Proceedings of the National Academy of...

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2012-03-14 16:09:29

New images from Cassini are giving scientists and amateur astronomers new insight into the jet streams of Jupiter. The team pieced together images taken from Cassini in 2000 to create a video, animating the wave that is disturbing Jupiter´s jet waves. These findings are part of an in-depth study that was published in the April 2012 issue of Icarus. Amy Simon-Miller is leading the research. “This is the first time anyone has actually seen direct wave motion in one of...

2012-03-14 09:52:57

New movies of Jupiter are the first to catch an invisible wave shaking up one of the giant planet's jet streams, an interaction that also takes place in Earth's atmosphere and influences the weather. The movies, made from images taken by NASA's Cassini spacecraft when it flew by Jupiter in 2000, are part of an in-depth study conducted by a team of scientists and amateur astronomers led by Amy Simon-Miller at NASA's Goddard Space Flight Center in Greenbelt, Md., and published in the April 2012...

Extreme 2010 Russian Fires And Pakistan Floods Linked Meteorologically
2011-08-31 08:49:43

  Two of the most destructive natural disasters of 2010 were closely linked by a single meteorological event, even though they occurred 1,500 miles (2,414 km) apart and were of completely different natures, a new NASA study suggests. The research finds that the same large-scale meteorological event – an abnormal Rossby wave – sparked extreme heat and persistent wildfires in Russia as well as unusual downstream wind patterns that shifted rainfall in the Indian monsoon...

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2011-03-30 14:49:20

If you're sitting on a bench in New York City's Central Park in winter, you're probably freezing. After all, the average temperature in January is 32 degrees Fahrenheit. But if you were just across the pond in Porto, Portugal, which shares New York's latitude, you'd be much warmer"”the average temperature is a balmy 48 degrees Fahrenheit. Throughout northern Europe, average winter temperatures are at least 10 degrees Fahrenheit warmer than similar latitudes on the northeastern coast of...

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2006-03-15 09:55:00

ESA -- Imagine a space tool so revolutionary it can determine the impact of climate change, monitor the melting of glaciers, discover invisible waves, predict the strength of hurricanes, conserve fish stocks and measure river and lake levels worldwide, among other scientific applications. This instrument is not the subject of a science-fiction novel. In fact, four of them are already operating 800 kilometres above Earth. Fifteen years ago this ground-breaking instrument, called a radar...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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