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Hypercane

2008-05-28T01:10:15Z

64.131.153.204:

A '''hypercane''' is a hypothetical class of [[tropical cyclone]] that could form if ocean temperatures reached around 50° [[Celsius]] (122° [[Fahrenheit]])—15° higher than the warmest ocean temperature ever recorded<ref>[http://www.windows.ucar.edu/tour/link=/earth/Water/temp.html&edu=high Temperature of Ocean Water, Windows to the Universe]</ref>—which could in turn be caused by a large [[asteroid]] or [[comet]] impact, a large [[volcano|volcanic]] or [[supervolcano|supervolcanic]] eruption, or very extensive [[global warming]].<ref>[http://ipsnews.net/news.asp?idnews=30308 The Dawn of the Hypercane?]</ref> There is some speculation that some [[dinosaur]]s might have been killed off by a series of hypercanes, resulting from an asteroid or comet crashing into [[Earth]].<ref>[http://www.newscientist.com/article/mg14519632.600-did-storms-land-the-dinosaurs-in-hot-water.html Did storms land the dinosaurs in hot water?]</ref> The term was originally coined by atmospheric scientist [[Kerry Emanuel]] in [[1994]], at [[MIT]].<ref name="MIT">[http://wind.mit.edu/~emanuel/holem/holem.html Limits on Hurricane Intensity]</ref><ref>[http://www.agu.org/pubs/crossref/1995/95JD01368.shtml Hypercanes: A Possible Link to Global Extinction Senarios]</ref>

===Physical description===
Hypercanes would have wind speeds of over 800 kilometers per hour (600 miles per hour; 130 [[m/s]]), and would also have a central pressure of less than 700 [[hectopascal]]s, giving them an enormous lifespan. The extreme conditions needed to create such a storm could conceivably produce a system up to the size of [[North America]], creating storm surges of {{ft to m|60}} and an eye nearly {{mi to km|200}} across. The waters could remain hot enough for weeks, allowing more hypercanes to be formed. A hypercane's clouds would reach 20 miles into the stratosphere. A hypercane could also damage the earth's ozone.<ref name="MIT"><ref name="What You Need To Know about Hurricanes"-Discovery Channel>[http://wind.mit.edu/~emanuel/holem/holem.html Limits on Hurricane Intensity]</ref>

===Hypercanes in fiction===
The [[anime]] ''[[Tactical Roar]]'' uses a fictional hypercane in the [[Pacific Ocean]] as a pretext to showcase naval battles, which are the series' focus.

==References==
<div class="references-small"><references/></div>

==See also==
{{tcportal}}
* [[Tropical cyclone]]
* [[Global warming]]

[[Category:Tropical cyclone meteorology]]

{{weather-stub}}

Hypercane

2008-05-18T19:44:45Z

64.131.153.204:

A '''hypercane''' is a hypothetical class of [[tropical cyclone]] that could form if ocean temperatures reached around 50° [[Celsius]] (122° [[Fahrenheit]])—15° higher than the warmest ocean temperature ever recorded<ref>[http://www.windows.ucar.edu/tour/link=/earth/Water/temp.html&edu=high Temperature of Ocean Water, Windows to the Universe]</ref>—which could in turn be caused by a large [[asteroid]] or [[comet]] impact, a large [[volcano|volcanic]] or [[supervolcano|supervolcanic]] eruption, or very extensive [[global warming]].<ref>[http://ipsnews.net/news.asp?idnews=30308 The Dawn of the Hypercane?]</ref> There is some speculation that some [[dinosaur]]s might have been killed off by a series of hypercanes, resulting from an asteroid or comet crashing into [[Earth]].<ref>[http://www.newscientist.com/article/mg14519632.600-did-storms-land-the-dinosaurs-in-hot-water.html Did storms land the dinosaurs in hot water?]</ref> The term was originally coined by atmospheric scientist [[Kerry Emanuel]] in [[1994]], at [[MIT]].<ref name="MIT">[http://wind.mit.edu/~emanuel/holem/holem.html Limits on Hurricane Intensity]</ref><ref>[http://www.agu.org/pubs/crossref/1995/95JD01368.shtml Hypercanes: A Possible Link to Global Extinction Senarios]</ref>

===The history of Hypercane===
65 million years ago a massive asteroid crashed into [[Mexico]]'s [[Yucatán Peninsula]]. 75% of all life on earth vanished; but could a single asteroid have been the lone killer? Theories about what happened after the impact have been speculated on by the scientific community. Ranging from global warming to lethal worldwide firestorms, ideas have been put forth--but none have been proven. Then in 1995 a new theory claimed that a powerful mega storm known as a Hypercane caused the extinction. The Hypercane allegedly reaches 20 miles into the stratosphere and has wind speeds of up to 800 miles per hour. 3-D computer animations will reveal how this storm could have brought down nearly all life on the planet.

===Physical description===
Hypercanes would have wind speeds of over 800 kilometers per hour (310.7 miles per hour; 130 [[m/s]]), and would also have a central pressure of less than 700 [[hectopascal]]s, giving them an enormous lifespan. The extreme conditions needed to create such a storm could conceivably produce a system up to the size of [[North America]], creating storm surges of {{ft to m|60}} and an eye nearly {{mi to km|200}} across. The waters could remain hot enough for weeks, allowing more hypercanes to be formed. A hypercane's clouds would reach 20 miles into the stratosphere. A hypercane could also damage the earth's ozone.<ref name="MIT"><ref name="What You Need To Know about Hurricanes"-Discovery Channel>[http://wind.mit.edu/~emanuel/holem/holem.html Limits on Hurricane Intensity]</ref>

===Hypercanes in fiction===
The [[anime]] ''[[Tactical Roar]]'' uses a fictional hypercane in the [[Pacific Ocean]] as a pretext to showcase naval battles, which are the series' focus.

==References==
<div class="references-small"><references/></div>

==See also==
{{tcportal}}
* [[Tropical cyclone]]
* [[Global warming]]

[[Category:Tropical cyclone meteorology]]

{{weather-stub}}

Hypercane

2008-05-18T19:44:24Z

64.131.153.204:

A '''hypercane''' is a hypothetical class of [[tropical cyclone]] that could form if ocean temperatures reached around 50° [[Celsius]] (122° [[Fahrenheit]])—15° higher than the warmest ocean temperature ever recorded<ref>[http://www.windows.ucar.edu/tour/link=/earth/Water/temp.html&edu=high Temperature of Ocean Water, Windows to the Universe]</ref>—which could in turn be caused by a large [[asteroid]] or [[comet]] impact, a large [[volcano|volcanic]] or [[supervolcano|supervolcanic]] eruption, or very extensive [[global warming]].<ref>[http://ipsnews.net/news.asp?idnews=30308 The Dawn of the Hypercane?]</ref> There is some speculation that some [[dinosaur]]s might have been killed off by a series of hypercanes, resulting from an asteroid or comet crashing into [[Earth]].<ref>[http://www.newscientist.com/article/mg14519632.600-did-storms-land-the-dinosaurs-in-hot-water.html Did storms land the dinosaurs in hot water?]</ref> The term was originally coined by atmospheric scientist [[Kerry Emanuel]] in [[1994]], at [[MIT]].<ref name="MIT">[http://wind.mit.edu/~emanuel/holem/holem.html Limits on Hurricane Intensity]</ref><ref>[http://www.agu.org/pubs/crossref/1995/95JD01368.shtml Hypercanes: A Possible Link to Global Extinction Senarios]</ref>

===The history of Hypercane===
65 million years ago a massive asteroid crashed into [[Mexico]]'s [[Yucatán Peninsula]]. 75% of all life on earth vanished; but could a single asteroid have been the lone killer? Theories about what happened after the impact have been speculated on by the scientific community. Ranging from global warming to lethal worldwide firestorms, ideas have been put forth--but none have been proven. Then in 1995 a new theory claimed that a powerful mega storm known as a Hypercane caused the extinction. The Hypercane allegedly reaches 20 miles into the stratosphere and has wind speeds of up to 500 miles per hour. 3-D computer animations will reveal how this storm could have brought down nearly all life on the planet.

===Physical description===
Hypercanes would have wind speeds of over 800 kilometers per hour (310.7 miles per hour; 130 [[m/s]]), and would also have a central pressure of less than 700 [[hectopascal]]s, giving them an enormous lifespan. The extreme conditions needed to create such a storm could conceivably produce a system up to the size of [[North America]], creating storm surges of {{ft to m|60}} and an eye nearly {{mi to km|200}} across. The waters could remain hot enough for weeks, allowing more hypercanes to be formed. A hypercane's clouds would reach 20 miles into the stratosphere. A hypercane could also damage the earth's ozone.<ref name="MIT"><ref name="What You Need To Know about Hurricanes"-Discovery Channel>[http://wind.mit.edu/~emanuel/holem/holem.html Limits on Hurricane Intensity]</ref>

===Hypercanes in fiction===
The [[anime]] ''[[Tactical Roar]]'' uses a fictional hypercane in the [[Pacific Ocean]] as a pretext to showcase naval battles, which are the series' focus.

==References==
<div class="references-small"><references/></div>

==See also==
{{tcportal}}
* [[Tropical cyclone]]
* [[Global warming]]

[[Category:Tropical cyclone meteorology]]

{{weather-stub}}