Ottawa Blizzard Posted April 11, 2015 Share Posted April 11, 2015 Yesterday marked the 200th anniversary of the eruption of Mount Tambora, which significantly cooled the earth. It brings to mind how volcanoes can impact our weather and climate. Part of me wonders if the volcanic eruptions in Iceland in both 2010 and 2011 have had some sort of impact upon our weather over the past few years. Europe had a long, cold winter in 2011-2012 (while we were having our mild winter) while the past two winters have been exceptionally cold in eastern North America. I believe the eruption of Laki in Iceland in 1783 had an impact upon the weather, resulting in the winter of 1783-1784 being exceptionally cold. http://www.economist.com/news/briefing/21647958-two-hundred-years-ago-most-powerful-eruption-modern-history-made-itself-felt-around Link to comment Share on other sites More sharing options...
JBG Posted April 11, 2015 Share Posted April 11, 2015 Yesterday marked the 200th anniversary of the eruption of Mount Tambora, which significantly cooled the earth. It brings to mind how volcanoes can impact our weather and climate. Part of me wonders if the volcanic eruptions in Iceland in both 2010 and 2011 have had some sort of impact upon our weather over the past few years. Europe had a long, cold winter in 2011-2012 (while we were having our mild winter) while the past two winters have been exceptionally cold in eastern North America. I believe the eruption of Laki in Iceland in 1783 had an impact upon the weather, resulting in the winter of 1783-1784 being exceptionally cold. http://www.economist.com/news/briefing/21647958-two-hundred-years-ago-most-powerful-eruption-modern-history-made-itself-felt-around Wasn't Tambora followed, a few years later, by the "year without summer" in the Northeast U.S.? Usually the lag is about 1 1/2 years or more. For example, Pinatubo in 1991 probably chilled the 1992-3 and 1993-4 winters. Mt. St. Helens and one whose name escapes me probably cooled Super El Niño winter 1982-3 enough to allow the Megalopolis Blizzard, and probably resulted in 1981-2 being gelid. Link to comment Share on other sites More sharing options...
A-L-E-K Posted April 13, 2015 Share Posted April 13, 2015 lol Link to comment Share on other sites More sharing options...
AvantHiatus Posted April 13, 2015 Share Posted April 13, 2015 lol wtf is this? Adolf Hitler's birthday is coming up. Link to comment Share on other sites More sharing options...
icebreaker5221 Posted April 13, 2015 Share Posted April 13, 2015 Tambora (1815) with global effects had an ejecta volume of 160 km^3. Laki (1783) ejected 14 km^3 with strong regional effects and some possible global consequences. Compare these numbers with only 0.25 km^3 for Eyjafjallajokull's larger eruption in 2010. Link to comment Share on other sites More sharing options...
WEATHER53 Posted April 14, 2015 Share Posted April 14, 2015 Hard for a lay guy like me to conceptualize these. So let me ask. When Mt St Helens went, was it like a 5 miles by 5 mile X5 X5, 25sq mile area of mountain that got blown away? Link to comment Share on other sites More sharing options...
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