#fourteau — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #fourteau, aggregated by home.social.
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Waiting for the handyman.
Reading a paper on analyzing firn in Antarctica. Firn is the snow layer before it gets compacted to actual ice. The firn layer contains gas like methane or CO2, too, but the air bubbles aren't strictly sorted on input date 😁 The bubbles can be older or younger than their immediate surrounding. (True for real ice layers, too.)All very interesting.
https://tc.copernicus.org/articles/13/3383/2019/tc-13-3383-2019.html
"Multi-tracer study of gas trapping in an East Antarctic ice core" by Kevin #Fourteau et al 2019.The absolute shocking byproduct of their incredibly thorough work is a 2700 year data series for CH4 in MONTHLY resolution!! https://doi.pangaea.de/10.1594/PANGAEA.909627?format=html#download
From -930 to 1774 AD.
Their gas dating method is so exact that they pinpoint several different days for every month, too.I am stunned that monthly resolution is possible. And this was merely a byproduct of figuring out the best way to analyze firn.
#paleoclimate #methane #CH4 #firn #icecore #ice #snow #Antarctica