Sting jet

Sting jet

A sting jet is a meteorological phenomenon which is believed to be the cause of the most damaging winds in European windstorms.

Following reanalysis of the Great Storm of 1987, led by Professor Keith Browning at the University of Reading, researchers identified a mesoscale flow where the most damaging winds were shown to be emanating from the evaporating tip of the hooked cloud head on the southern flank of the cyclone. This cloud, hooked like a scorpion's tail, gives the wind region its name the "Sting Jet". [ [http://www.royalsoc.ac.uk/exhibit.asp?id=3651 Damaging winds from European cyclones] The Royal Society, retrieved 2007-17-10]

It is thought that a zone of strong winds, originating from within the mid-tropospheric cloud head of an explosively deepening depression, are enhanced further as the "jet" descends, drying out and evaporating a clear path through snow and ice particles. The evaporative cooling leading to the air within the jet becoming denser, leading to an acceleration of the downward flow towards the tip of the cloud head when it begins to hook around the cyclone centre (see satellite images). Windspeeds in excess of 80 kn (150 km/h) can be associated with the Sting jet. [ [http://www.booty.org.uk/booty.weather/FAQ/SZ.htm Meteorological glossary] Booty.org, retrieved 2007-17-10]

It has since been reproduced in high-resolution runs with the mesoscale version of the Unified Model. The Sting jet is distinct from the usual strong-wind region associated with the warm conveyor belt and main cold front. There are indications that conditional symmetric instability also plays a role in its formation but the importance of these processes remains to be quantified. [ [http://www.uwern.ac.uk/uwern/Newsletter/Issue2/node2.html Cyclonic storms] UWERN newsletter, retrieved 2007-17-10]

References


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Jet stream — Jet streams are fast flowing, relatively narrow air currents found at the tropopause, the transition between the troposphere (where temperature decreases with height) and the stratosphere (where temperature increases with height), [United States… …   Wikipedia

  • Sting Ray torpedo — The Sting Ray torpedo is a British acoustic homing light weight torpedo (LWT) manufactured by BAE Systems.Design and DevelopmentThe early 1960s concept was to provide the Royal Navy with a British built torpedo to replace the imported Mk 44 and… …   Wikipedia

  • Great Storm of 1987 — The Great Storm of 1987 occurred on the night of 15 October to 16 October 1987, when an unusually strong weather system caused winds to hit much of southern England and northern France. It was the worst storm to hit England since the Great Storm… …   Wikipedia

  • Keith Browning — is a British meteorologist who worked at Imperial College London, the Met Office and University of Reading department of meteorology. His work with Frank Ludlam on the supercell thunderstorm at Wokingham, UK in 1962 was the first detailed study… …   Wikipedia

  • List of G.I. Joe: A Real American Hero vehicles — For Dreadnok and Iron Grenadier vehicles, see Dreadnoks and Iron Grenadiers. The G.I. Joe: A Real American Hero toyline was introduced by Hasbro in 1982, and lasted to 1994, producing well over 250 vehicles (i.e. in universe are meant to move… …   Wikipedia

  • Northrop F-89 Scorpion — P89 redirects here. For the semi automatic pistol, see Ruger P series. F 89 Scorpion Formation of three F 89Ds of the 59th F …   Wikipedia

  • List of Mavericks — This is a list of the fictional boss characters (Mavericks) found in the Mega Man X series. Mavericks are usually based upon animals (although there are a few Mavericks that aren t based on animals but rather plants, like Mega Man X5 s Axle the… …   Wikipedia

  • Kurt Angle — Angle at a WWE Q A in August 2005. Ring name(s) Kurt Angle Height 5 ft 10 in (1.78 m) …   Wikipedia

  • Ric Flair — The nature boy redirects here. For other uses, see Nature Boy (disambiguation). Ric Flair Ring name(s) Ric Flair[1] The Black Scorpion …   Wikipedia

  • Bobby Eaton — Infobox Wrestler name= Bobby Eaton names= Earl Robert Eaton Beautiful Bobby Eaton height= height|ft=6|in=0 weight= convert|235|lb|kg st|abbr=on birth date= birth date and age|mf=yes|1958|8|14 death date= birth place=Huntsville, Alabama… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”