drgilbz.bsky.social
Head in the clouds, heart in the ice. Climate Scientist & presenter, and massive cloud nerd.
Represented for TV & books by Natalia Lucas at United Agents.
70 posts
5,311 followers
525 following
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The continent is divided into 3 main regions - west, east and peninsula.
It's based on the lines of longitude (obviously at the exact south pole everything is north but anywhere else can be more or less east/west). 0-180 degrees of longitude is east, 180-360 (or -180 to 0) degrees is west.
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Thanks so much for this! Glad you enjoyed the vid :)
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Also paging @bas.ac.uk 😘
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The full paper is out today on the Cryosphere website, check it out here:
tc.copernicus.org/articles/19/...
HUGE thanks to my co-authors (the only one on Bsky is @michelle-maclennan.bsky.social ) and to @polarres.bsky.social for funding the work.
8/8
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And you can also check out my @carbonbrief.org guest post here:
www.carbonbrief.org/guest-post-h...
7/8
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I've made a video summarising the results (of course)
Watch here: ▶️ youtu.be/0-zLGu2t_e0
6/8
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🗻The effects of atmospheric rivers in West Antarctica are strongly controlled by the steep terrain.
The slopes also drive warming near the surface, and ramp up the production of snow via a phenomenon called the seeder-feeder effect.
Fig from wasatchweatherweenies.blogspot.com/2020/04/the-...
5/8
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All the models simulate rain (so does ERA5) but whereas they all agree on snowfall, rain is not such a clear picture.
Hi-res really helps here, and it's all we've got to go on because there are no observations of rainfall in this region - this really should change!
4/8
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But it's not just snow we see in the results - oh no.
☔Rain is also falling at sub-zero temperatures over the ice shelves and even over the ice streams of Thwaites and Pine Island.
Rain (dark blue contours) falls above the melt line (dashed) in this figure, showing a transect through PIG.
3/8
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We use hi-res regional modelling to look at two atmospheric river cases (winter & summer).
Observations are scarce in this region and we have obs of snowfall only over Thwaites (thanks to AMIGOS sensors). All models do well, and better than ERA5 ⬇️
This makes hi-res modelling essential!
2/8
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Sorry to hear ! But the new direction sounds exciting :)
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🙃🙃🙃
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41 days = 6 weeks
You've just blown my mind
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WWA found a similar conclusion - maybe check their report/website? (or ask Fredi?)
I would *guess* that it's the number of days above a threshold temp (location dependent, or vs humidity?), averaged...
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Just wait til they hear about all the other crazy shit I get up to!
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Thanks!