Joe MacGregor

I'm back on this hellish platform to share something important: the Randolph Glacier Inventory (RGI) version 7.0 is released! Find out more on our new user guide glims.org/rgi_user_guide and in the thread below 🧵

From the Artic Command Facebook page today; “TSUNAMI IN DICKSON FJORD Arctic Command was contacted on 17 September by a person on board the cruise ship OCEAN ALBATROS. The person was previously employed by SIRIUS, and he was therefore able to ascertain quite quickly that SIRIUS' station on Ella Ø did not look as it used to. The inquiry resulted in the Arctic Command starting to investigate what had happened at Ella Ø. Everything indicated that a tsunami had hit and washed a lot of material into the sea. As Ella Ø was abandoned for the season, luckily there were no injuries. On Sunday afternoon, the inspection ship KNUD RASMUSSEN arrived at Ella Ø. The ship was nearby after last week's task with the grounded cruise ship in Alpefjord. Also personal from SIRIUS arrived soon after. With the help of the crew of KNUD RASMUSSEN, they started the clean-up work. Arctic Command launched an overflight with the Challenger aircraft, which took pictures of the area on 19 September. From the pictures, it indicated that a mountain had fallen into the water, and a tsunami had subsequently hit Dickson Fjord and Ella Ø. The clean-up work has been completed, and thus the case is closed for the Arctic Command. Photos can be used by crediting: SIRIUS/Arktisk Kommando”

***Opportunity to work for NASA at @NASAJPL of @Caltech*** We are looking for a candidate to study the general interactions (broadly defined) between climate and solid Earth. Drop me a line if you are interested. Please spread the word! jpl.jobs/job/R2232/Post…

Thwaites Glacier Eastern Ice Shelf from Sentinel-1 over the last eight years. I suspect it won't be long before total collapse. 1080p video can be downloaded here: aluckman4.wixsite.com/ade-s-world-of…

⏳ This call for postdoctoral fellows to join our group closes at the end of August (31/8). All positions include the possibility for #Greenland fieldwork. Very fine to email me queries about the positions, or living and working in Denmark, at wic@geus.dk. 👇

QGreenland, led by @twilamoon, is a free and open-source mapping tool to support interdisciplinary Greenland-focused research, teaching, decision making, and collaboration. It is modeled after the Norwegian Polar Institute’s Quantarctica tool. Learn more: nsidc.org/our-research/f…

Emptying of Suicide Basin which caused the #Mendenhall Glacier #GLOF downstream, Juneau, Alaska 🌊❄️🔥 apps.usgs.gov/hivis/camera/A…

Our actual climate policy

awesome

@gayciologist @drewchrist_geo @UTGeophysics ben: great work on this, loved this figure and clear modeling outcome, paper has a nice coherent message and contextualized well with earlier work

new paper 🪨🧊🌲 we show that northwest greenland was ice-free for ~15ka about 400ka ago, which requires that the ice sheet contributed at minimum +1.4m to global sea level - and potentially much more. read more: science.org/doi/10.1126/sc… @drewchrist_geo @UTGeophysics

Here is the ~final result after ~3 hours of tracing

For Greenland Ice Sheet radiostratigraphy v2, I've been refining ARESELP method of predicting layers before tracing them. Working well and fast. 1. 12 concatenated CReSIS radargrams; 2. Raw ARESELP layers; 3. Quick ARESELP clean-up; 4. Flattened radargram: much easier to trace!

@icy_pete @UMNews @US_IceDrilling @HakaiInstitute @NSF @UWEnvironment @UNBC @brianmenounos @CFANS @JuliaAndreasen @UMNswac way to go! 😎🤠🥳

#Ilulissat #Greenland #July10 2023. -from Facebook

Check out our new pre-print led by postdoc Vincent Verjans on using deep neural networks to speed up subglacial hydrology modeling by 800x and hopefully pave the way for fully coupled simulations of entire ice sheets with subglacial hydrology doi.org/10.22541/essoa…

@icy_pete @UMNews @US_IceDrilling @HakaiInstitute @UWEnvironment @UNBC @brianmenounos @JuliaAndreasen @LKirkpatrick98 @CFANS @UMNswac

What impact has leaving the EU had on UK polar science ? I think you could not conceive a simpler and more effective way to damage it. We have to recognise this before we can fix it. Starting by rejoining @CopernicusEU to save our space sector

Very cool

You don’t normally see stories like this in institutional publications “One of the reasons we lose women in glaciology is that the media still presents us as ‘badass scientists’ — I hate that. It’s this unhelpful, risk-taking, individualistic mentality.” blogs.oregonstate.edu/strata/women-i…