calderas and hurricanes

#1 Postby **JonathanBelles** » Thu Jan 19, 2006 4:41 pm

what effects do warm water calderas have on hurricanes in the atlantic? Any notable storms that went over calderas? did wilma go over a caldera causing that rapid intensification?

#2 Postby **terstorm1012** » Thu Jan 19, 2006 4:59 pm

Um....not sure what you're referring to.

Wilma didn't go over any volcanos, if that's what you're referring to.

#3 Postby **JonathanBelles** » Thu Jan 19, 2006 5:11 pm

under water vent that gives off warm heat

milankovitch · #4 Postby **milankovitch** » Thu Jan 19, 2006 5:30 pm

I have never heard of undersea volcanoes have any appreciable effect on tropical cyclones, or regional SSTs for that matter. I imagine if you had a very large eruption in very shallow waters that might have a very local effect like less over a couple of km. That's why I can't see them possibly having an effect.

#5 Postby **curtadams** » Thu Jan 19, 2006 5:34 pm

Volcanos don't even come close to producing enough heat to affect large-scale climatic events like hurricanes. To get even 1 degree over the area covered by a hurricane would require cubic miles of lava in a short period of time (probably weeks). Even Kilauea produces less than one-hundreth of that - http://hvo.wr.usgs.gov/kilauea/history/ ... olume.html.

On a geologic scale you occaisionally see eruptions that big, but I doubt any has happened in human history.

#6 Postby **JonathanBelles** » Thu Jan 19, 2006 6:10 pm

Astro_man92 · #7 Postby **Astro_man92** » Thu Jan 19, 2006 6:46 pm

fact789 wrote:under water vent that gives off warm heat

a caldera is a volcano that erupred and the magma chamber has almost run itself dry. then the volcano calaspes in on itself. Whala a caldera

here is a Link i just googled on caldera's

#8 Postby **HURAKAN** » Thu Jan 19, 2006 7:13 pm

The Mid-Atlantic Ridge has lots of vents but because they are so far underwater, the superheated waters cool very easily after being released into the ocean. There is no relation whatsoever between underground volcanoes and the intensity of hurricanes.

Astro_man92 · #9 Postby **Astro_man92** » Thu Jan 19, 2006 7:27 pm

Hmm it makes you wonder though. What if a small section of the ridge grew or the ice caps froze a little further south ( which i think would lower the sea level :comment:

plz). Would the ridge we shallow enough to heat the water to at least strengthen a hurricane tad or a ts just enough to reach hurricane strength

#10 Postby **Downdraft** » Sat Jan 21, 2006 4:47 pm

The last caldera eruption occured 10,000 years ago. The largest caldera in the world is Yellowstone Park and if it erupts it will definitely affect hurricanes in all basins. It's hard to have a hurricane when your facing an ice age. :cry:

#11 Postby **JonathanBelles** » Sat Jan 21, 2006 5:00 pm

ice age --- calderas--- link?

Astro_man92 · #12 Postby **Astro_man92** » Sat Jan 21, 2006 5:16 pm

Downdraft wrote:The last caldera eruption occured 10,000 years ago. The largest caldera in the world is Yellowstone Park and if it erupts it will definitely affect hurricanes in all basins. It's hard to have a hurricane when your facing an ice age.

I thought that was a Super Volcano!?!?

go here >>> http://en.wikipedia.org/wiki/Caldera

#13 Postby **JonathanBelles** » Sat Jan 21, 2006 5:18 pm

thats what i thought!

Astro_man92 · #14 Postby **Astro_man92** » Sat Jan 21, 2006 5:26 pm

http://en.wikipedia.org/wiki/Super_volcano

http://en.wikipedia.org/wiki/Yellowstone_Caldera - oh

sorry about that

WindRunner · #15 Postby **WindRunner** » Sat Jan 21, 2006 5:29 pm

Asto_man - follow that link you posted, go down to the bottom, click on the "supervolcano" link, and click the link the third paragraph about the "Yellowstone supervolcano." What article is that? It's the one about the Yellowstone caldera. Reading the "Supervolcano" article, it appears that that term was coined about 6 years ago when a BBC show used it to describe Yellowstone's potential. So, such a term is rather unofficial and could be inaccurate.

Also, this is Wikipedia - not exactly the most accurate site due to its nature - created and updated by most anyone.

WindRunner · #16 Postby **WindRunner** » Sat Jan 21, 2006 5:29 pm

Ironically, it appears you found it already. Never mind

#17 Postby **Aslkahuna** » Sat Jan 21, 2006 8:30 pm

Actually, if you look at the geology of the Yellowstone area, you will find that it is indeed a large caldera. The last really monstrous eruption was Toba about 74000 years and the effects of that nearly extincted the Human Race.

Steve

#18 Postby **JonathanBelles** » Sat Jan 21, 2006 8:45 pm

Astro_man92 · #19 Postby **Astro_man92** » Sun Jan 22, 2006 10:41 am

Aslkahuna wrote:Actually, if you look at the geology of the Yellowstone area, you will find that it is indeed a large caldera. The last really monstrous eruption was Toba about 74000 years and the effects of that nearly extincted the Human Race.

Steve

I heard about that a while ago. Wasn't that in the Meditaraniane sea. oh and more info on that, because of that eruption everyone on earth decended from those few thousand survivors!

Astro_man92 · #20 Postby **Astro_man92** » Sun Jan 22, 2006 10:44 am

here is a link to a pge about super volcanos

calderas and hurricanes

calderas and hurricanes

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