Not exact matches
«The
jet stream changes character every 10 to 12 days, and we use this
pattern to predict the weather,» said Anthony Lupo, professor of atmospheric science
in MU's School of Natural Resources, which is located
in the College of Agriculture, Food and Natural Resources.
Those
changes may include the loss of Arctic summer sea ice, the collapse of ice sheets
in Greenland and western Antarctica, dieback of the Amazon rainforest and
changes in the
jet stream and the
pattern of El Niño and La Niña weather cycles.
The
jet stream off the East Coast of the United States controls an important climate
pattern in the Atlantic... «The North Atlantic Oscillation is really driving these
changes in ocean circulation,» said Gerald McCarthy, lead study author and an oceanographer at the University of Southampton
in the United Kingdom....
But passengers won't just have to keep their seat belts locked, they may have to stay locked
in for longer, as
jet stream wind
patterns change.
Francis, who wasn't involved with either study, is one of the main proponents of an idea that by altering how much heat the ocean lets out, sea ice melt and Arctic warming can also
change atmospheric circulation
patterns,
in particular by making the
jet stream form larger peaks, or highs, and troughs, or lows.
4) A
change in global weather
patterns which I noticed as long ago as 2000 whereby the
jet streams moved back towards the equator from the positions they adopted during the warming spell.
What ever happens
in the ENSO scales I think there will still be increased snowfall and rain over the USA over this winter due to the
jet stream influences and pressure
pattern changes.
But, interest
in precipitation,
jet stream, hurricane
pattern changes encompass much more than just temperature.
Further adding to the divide within the climate science community is the fact that many of the climate models that Trenberth and others often use do not show the sorts of
changes in the
jet stream that the new study and others like it have pointed to, including the more frequently stagnated or «blocked» weather
patterns that Francis cited.
They demonstrate
changing patterns in global circulation, the closest visual aid to show how weather becomes climate imnhso: increased water vapor, increased energy, and
changes in the way the
jet stream is acting (I'm repeating myself).
What may be happening is that the
changing climate is affecting the
pattern of the
jet stream, causing warmer high - pressure systems to sit and stay
in one place
in what's called a blocking
pattern.