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IMAGE 177641
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Midday September 19 (00:43 9/20 UTC) VIIRS image with BTD (brightness temperature difference) ash signatures from Semisopochnoi matching 10,000-20,000 ft. wind trajectories.

Date: September 20, 2021 12:43 AM UTC
Volcano(es):Semisopochnoi
Photographer/Creator: Loewen, Matt
URL:http://www.avo.alaska.edu/images/image.php?id=177641

Citation Information:
Image courtesy of AVO/USGS.
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Page modified: December 23, 2019 16:01
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