Sulfur Dioxide Emissions Over the U.S. from October Kliuchevskoi, Russia, Volcano Eruption •

Last update: November 11th, 2019 at 9:00 am

The image shows elevated levels of sulfur dioxide, or SO2, gas over the Eastern United States on October 23, 2013. These low SO2 gas levels originated from an eruption of Kliuchevskoi volcano (Kamchatka, Eastern Russia), October 15-20. The volcano emitted SO2 into the jet stream winds in the upper troposphere, which transported the gas rapidly east over the United States.

Text credit: Audrey Haar, NASA’s Goddard Space Flight Center, Greenbelt, Md.

Image credit: Simon Carn, Michigan Technological University, under NASA “Continuation of Long-Term Sulfur Dioxide EDR with the NPP Ozone Mapping and Profiler Suite Nadir Mapper” research lead by Kai Yang, University of Maryland

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