NEW: Study confirms Tonga volcano had the highest plume ever recorded. At 35 miles high, the ash cloud generated by the eruption is also the first to have been observed in the mesosphere, a layer of the atmosphere more commonly associated with shooting stars. More info⬇️

Tonga volcano had highest plume ever recorded. The research led by Dr Simon Proud Simon and Dr Andrew Prata Andy Prata has been published in the journal Science Magazine, and you can read more about it here ox.ac.uk/node/7629962 University of Oxford Natural Environment Research Council @OxfordAOPP #Tonga

Satellite data from NASA JPL's AIRS instrument (12:45 UTC Nov 28) shows #volcanic SO₂ emitted by the initial phase of the #MaunaLoa #eruption drifting NE of #Hawaii in the mid- to upper-troposphere. Note data gap east of the red line. @airesEO NASA Earth NWSHonolulu NASA

#Sentinel5P #TROPOMI data for the #MaunaLoa #eruption showing ~0.2 Tg SO₂ on Nov 28. SO₂ furthest east is at higher altitude than the plume nearer the #volcano. For reference, we estimate that the 1984 Mauna Loa eruption emitted ~1.2 Tg SO₂. Copernicus EU BIRA-IASB ESA Earth Observation

Latest #MaunaLoa observation from #TROPOMI at 23:42 UTC shows a nice SO2 plume. Quicklook image from the #SACS system.

Exciting to see the launch of #MTGI1! Congrats to all invovled.

One year ago today, the #HungaTongaHungaHaapai volcano erupted. Thankfully with, bearing in mind the size of the eruption, few casualties and damage. This eruption was so big it confused us scientists! We couldn't treat it how we normally do.

Come hear about our work at Earth Observation Data Group on the Hunga Tonga-Hunga Ha'apai eruption in the #iavcei2023 Hunga session today. We have two talks: one in the morning on Isabelle Taylor's work on the HTHH SO2 (10H) and one in the afternoon where I'm going to talk about ice (11H)!

Looks like a big eruption from #Sheveluch occurred overnight (local time). Plume becomes identifiable around 13 UTC on 10 April. Some clear ash and SO2 signals in Himawari-9 AHI data.

BREAKING: An ash cloud from a volcanic eruption in Russia is impacting flights in the state of Alaska. As a safety precaution, Alaska Airlines has canceled some flights to and from Alaska and within the state. Guests can check the status of their flight at alaskaair.com.

Updated Himawari-9 observations of the ash and SO2 from the #Sheveluch (#Shiveluch) eruption. Animation goes from 13 UTC on 10 April to 23:50 UTC on 12 April. Some aspects of the SO2 transport remind me of #Raikoke

#SO2 plume from #Shiveluch eruption. IMS retrieval scheme using IASI-B. NRT vis-tool here: gws-access.jasmin.ac.uk/public/rsg_sha… Andy Prata @airesEO Mark Parrington @PolifemoSte Pasquale Sellitto

This stunning first image was taken at 11:50 UTC on 18 March and shows cloudy conditions over Europe, Africa & the Atlantic 🤩 This level of detail wasn't possible over Europe & Africa from a geostationary orbit before! For more info & imagery visit: bit.ly/3p8UeBh

Together at last! Antarctica’s future is everyone’s future. 🌏 This group funded by Australian Research Council are doing the #science to protect it. Thanks to hosts Uni of Adelaide & South Australian Museum. #SAEFHuddle

Amazing mammatus clouds passing over Frankston, VIC just now Nate Byrne

Very pleased to see that our paper on the ash plumes from the 2021 eruption of La Soufriere, St Vincent led by Isabelle Taylor is now published UK COMET Oxford Earth Sciences Tamsin Mather Andy Prata Simon @OxfordAOPP acp.copernicus.org/articles/23/15…

#iceland #Reykjanes SO2 plume as seen by IASI-B yesterday evening. IMS retrieval scheme. NRT vis-tool here: gws-access.jasmin.ac.uk/public/rsg_sha… Andy Prata @airesEO Mark Parrington @PolifemoSte Pasquale Sellitto RAL Space

First #Sentinel5P #TROPOMI overpass ~1.3 hours after the onset of today's #eruption on #Iceland's #Reykjanes peninsula shows very high SO₂ column amounts in plume spreading SE. Est. SO₂ emission rate is ~1400 kg/s (~120,000 tons/day). Veðurstofa Íslands / Icelandic Met Office Copernicus EU Geochemistry and Petrology Group @ Uni. Iceland