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Aleutian Range
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== Volcanic eruptions == {{multiple image | align = right | image1 = Neacola1.jpg | image2 = Aleutian Range - FWS.jpg | footer = Blockade Glacier in the Neacola Mountains (left) and the Aleutian Range }} Two volcanoes erupted during the summer of 2008 on the eastern Aleutian Islands. On July 12, 2008, Mount Okmok erupted, and it continued to erupt for a month. A giant, rapidly moving ash and gas cloud shot up to a height of 15,240 m as a result of this eruption.<ref>{{Cite web|url=https://www.sciencedaily.com/releases/2008/07/080720093810.htm|title=Explosive Eruption of Okmok Volcano in Alaska|date=21 July 2008|website=Science Daily|access-date=14 September 2016}}</ref> Mount Kasatochi was home to the other eruption, which occurred on August 7 and 8. This eruption also sent up a gas cloud about 15,000 high. Together, these two power volcanic eruptions deposited emissions of trace gases an aerosols into the atmosphere. These emissions formed a sulfate aerosol layer that totaled a transfer of 1.6 Tg of SO<sub>2</sub> into the stratosphere and disturbed flights over this area for a short period following the eruptions.<ref>{{Cite journal|last=Schmale|last2=Schneider|last3=Jurkat|date=January 27, 2010|title=Aerosol layers from the 2008 eruptions of Mount Okmok and Mount Kasatochi; in situ upper troposphere and lower stratosphere measurements of sulfate and organics over Europe|journal=Journal of Geophysical Research: Atmospheres|volume=115|issue=D2|pages=D00L07|doi=10.1029/2009jd013628|bibcode=2010JGRD..115.0L07S|url=https://hal.archives-ouvertes.fr/hal-00518065/file/Schmale_et_al-2010-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf}}</ref>
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