Aslak Grinsted
Associate Professor at the Niels Bohr Institute, University of Copenhagen. Interested in ice, climate, sea level, and extreme events. 🧪 ❄️ 🌊 🌀 🥼 🌡️
Dad of two teen girls, and one toddler boy.
Also on mastodon here: @agrinsted@fediscience.org
- They got the EGRIP camp weather data flowing out of camp. alice.egrip.camp
- Reposted by Aslak GrinstedThe resulting cataclysmic backsplash of water - a MEGATSUNAMI - was around 200 metres tall, and sent 100-metre-high waves racing across the fjord to smash against the other side of it. (This is still not the crazy bit!) 5/
- Crude estimate of the bicycle accident risk per km. (Sure to convince my teen girls to wear their helmets.) Numbers for denmark: Accidents: 15000 per year Trips: 2e6 per day Avg trip length: 3.2km =Approx: 1 accident per 150e3 km stormgmtpbie.z6.web.core.windows.net/cykelregnska...
- Greenland accumulation in terms of cucumbers. * Greenland acc = ~600Gt/yr. * global pop = ~9bn. So ~7.5 kg/person/hour * cucumber water content = ~166g So ~45 cucumbers/person/hour Unfortunately global cucumber production is only 95 Mt/yr = 1.2 cucumber/person/week 🥲
- An open position for a Global climate and ice sheet modelling scientist at DMI. candidate.hr-manager.net/ApplicationI...
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- Alot of ML at EGU. Some of it good, but also some pretty random stuff.
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- I need a new circular saw and would like the batteries to be compatible with my other DeWalt tools. But i am wondering if i should jump ship to some non-US brand. Also - they apparently have extra high exposure to the tariff situation.
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- Reposted by Aslak GrinstedWho wants to work on the Arctic in Copenhagen? Super postdoc job going with our friends at Aarhus University* together with DMI on climate modelling and Arctic influences on the mid-latitudes: *at a campus not actually in Aarhus but just outside Copenhagen international.au.dk/about/profil...
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- Scandinavia in March vs April #modis
- The Overleaf integrations with git and zotero is so great. New figures will appear in Overleaf when I commit and bib file sync also only takes a click.
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- I wrote up a tiny 2d shallow ice approximation python notebook for my continuum mechanics course. gist.github.com/grinsted/d5d...
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- Moomin=Kant? Tove Jansson made the first drawing of a moomin troll in an outhouse after an argument with her brother where one of them was quoting Immanuel Kant. I heard two different versions of that story. In one of them the Moomin troll was intended as a caricature of Kant.
- Fluid dynamics in an absolutely beautiful 64k computer demo. youtu.be/R-4wHUw_OdE?...
- I'm considering if my continuum mechanics course should cover some intro plasma physics too in the future. Any good books that span that space? Some keywords: (elastic solids, viscous fluids, to plasma physics).
- I am looking at different Lab/Lch colorspaces (OKLab/SR2Lab/...) - One issue they share is that the RGB color you get for very dark L-values becomes negative. Seems non-sensible to me.
- Any recommendations for a book on inverse problems covers both linear and Bayesian techniques - ideally with examples from earth science.
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- DR has now retracted the documentary. www.dr.dk/drtv/episode...
- Anybody has access to recent very high resolution satellite imagery of Greenland. We want to know if a Ø22cm pipe is still sticking out of the ice at this location: 75.09714423N, 42.31992755W (5m uncertainty) Please help - it could save a lot of fuel (It is the NGRIP borehole casing)
- Colonial mining profits... Denmark has made huge profits from a cryolite mine in Greenland. A new explosive documentary has sparked debate in DK. I think the criticism of the documentary is a bit unfair - the caveats regarding the 400bn are clearly highlighted IMHO.
- This is a nice article in science about EastGRIP. Love the photos. www.science.org/content/arti...
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- Loewe 1936: "... there is a strong evidence that the Greenlandic ice cap is not quickly decreasing today but in a nearly stationary condition". Pretty impressive statement considering the sparse data at the time. I'd love a pdf of that paper. Anybody? www.buchfreund.de/de/d/p/79453...
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- End of an era. The final Symposium of the EastGRIP project.
- I have moved the entire family to immich instead of Google Photos and it is great. Open Source appreciation day.
- I wish that VS Code would remember which environment i last used for a python notebook. -Or maybe if i could add an annotation clue to the first cell with the name of an environment. Just like i can add "#!/usr/bin/env bash" to a shell script.
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- Many electrical wood working tools work great on ice. I've used band saws, circular saws, chainsaws, hand drills, router, and planer. Here's me 20years ago. Cutting a blue ice sample with a chainsaw.
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- Stressful morning. Blocked sewers outside our house - they could not keep up with the melting snow & rain. But we avoided getting flooded - Yay! I had just bought and installed some flood sensor alarms (SNZB-05B), and got an early warning from home assistant.
- Organizing some old fieldwork photos using immich. Here's a nice black "dragon" shaped stripe in Scharffenbergbotnen, Heimefrontfjella, Antarctica.
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- A new gigantic outburst flood from Catalina lake in East Greenland [Catalinadal, Renland, Scoresbysund]. total volume: 3.4 km3 peak discharge: ~7200 m3/s top-10 #GLOF in terms of both numbers. previous outburst 2013 I'm sending out a press release today about it. 🧪❄️ 🥼❄️ 1/x
