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The last two big fragments of the once mighty A23 iceberg. The US National Ice Center calls the bottom-left object A23k and the top-right, A23a. Its latest report (20/3/26) said both were about 140 sq km. Latitude is roughly 50 deg S.
Iceberg A23a today (17 Feb). A totally clear sky. Utterly stunning. Still refusing to die. Still 500 sq km in area. Image from the Modis instrument on the venerable Aqua satellite, another oldie that's still plugging away.
🌊❄️ When Antarctic glaciers collapse into the sea, they can trigger huge underwater tsunamis that mix the ocean, affecting ice loss, climate and ecosystems. The project I lead on this is now in the field and featured on Sky News: news.sky.com/story/underw... #Antarctic #OceanMixing #ClimateScience
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I'm reasonably convinced now that Iceberg A23a has completely collapsed. The USNIC is no longer tracking a berg of that name. But A23k (also not listed) does however lumber on, albeit in a disheveled state. This view is from Thursday (9 April) NOAA-21 VIIRS. usicecenter.gov/Products/Ant...
news.sky.com
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Jonathan Amos
Jonathan Amos
Prof Michael Meredith 🌊🧪🥼❄️
A small silver lining: Yes, NASA and NOAA did not do briefings for their global temp data sets released today. And they certainly do not emphasize the human causes. But they *did* release them. The work is still happening. data.giss.nasa.gov/gistemp/grap... www.ncei.noaa.gov/access/monit...