Prof. Simon Carn
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simoncarn.bsky.social
Prof. Simon Carn
@simoncarn.bsky.social
Volcanologist @michigantech.bsky.social. Satellite-powered analysis of global #volcanic activity. #GreatLakes silent sports 🏃🏻‍♂️🚵🏻‍♂️⛷. Often buried in snow. 🇬🇧/🇺🇸
Satellite measurements on July 18 show continued SO₂ emissions from the erupting fissure in #Iceland and dispersion of SO₂ over #Greenland and the #Arctic Ocean.
July 18, 2025 at 7:24 PM
Thanks Fred. Impressive plume but low SO₂ loading (~6 kt or 0.006 Tg); an order of magnitude lower than the June 17 eruption of #Lewotobi.
July 8, 2025 at 7:19 PM
Satellite data from @CopernicusEU #Sentinel5P #TROPOMI show a band of #volcanic SO₂ advancing over the NW #UK and #Ireland on Aug 24, behind a cold front. Observations of SO₂ over Europe are set to improve (-> hourly) with the upcoming launch of the #geostationary #Sentinel4.
November 16, 2024 at 10:31 PM
Longer sequence of hourly #GEMS data (daytime only) showing SO₂ emissions from the June 3 #Kanlaon #eruption. On June 5, the upper tropospheric SO₂ cloud was moving west over #SriLanka and S. #India, whilst SO₂ at lower altitudes is dispersing over the southern #Philippines.
November 16, 2024 at 10:31 PM
The #volcanic SO₂ (and derived sulfate aerosol) from #Iceland seems to be impacting surface #AirQuality over the northern #UK today.

L: #TROPOMI data shows SO₂ plume at 11:50 UT
R: map shows data from the @ThePurpleAir...
November 16, 2024 at 10:43 PM
Consecutive orbits of #TROPOMI data on May 30 show ongoing SO₂ emissions from the Sundhnúksgíga #eruption. The SO₂ plume emitted on May 29 is now drifting towards NW #Scotland & SO₂ columns in this cloud remain quite high (~200 DU). Might create some visible haze. @EIlyinskaya
November 16, 2024 at 10:31 PM