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Joe MacGregor

@joemacgregor.bsky.social

2.3K followers 481 following 17 posts

Glaciologist @ NASA/GSFC. Earth’s ice is great. Let’s keep some around. Views my own. He/him. 👨‍👩‍👧 🐶 🐶 🐈 🧊 🇬🇧 🇨🇦 🇺🇸 🇬🇱 🇦🇶

Posts Replies Media

Joe MacGregor @joemacgregor.bsky.social · 09/12/2024

The Snow4Flow concept paper is out! See notice in cryolist from Thursday. This will form the basis for the later AO. Stickers at #AGU24. snow4flow.lpl.arizona.edu/concept-paper

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Joe MacGregor @joemacgregor.bsky.social · 14/11/2024

Lots of new people here so a reintroduction: Glaciologist & geophysicist. Big fan of ice, especially the grounded form, at both poles. Keen on radar sounding, airborne & satellite remote sensing, & developing better boundary conditions for ice flow models. Sometimes I meme, other times I exercise.

Ice-sheet runoff at Kangerlussuaq, Greenland

Ruth (red tri) and Mara (black tri) reconnecting

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Joe MacGregor @joemacgregor.bsky.social · 03/05/2024

This is poor/confusing framing for several reasons. Among them: We ARE measuring sea-levels now and have been for decades, and NOT with Terra/Aqua. It's painful to lose them, but for detecting ice-shelf collapse, there are other satellites with comparable ability. www.nytimes.com/2024/05/03/c...

Even a short break in the records can create problems. Say an ice shelf collapses in Greenland. Unless you were measuring sea-level rise before, during and after, you’ll never be sure a sudden change was caused by the collapse, said William B. Gail, a former president of the American Meteorological Society. “You might surmise it, but you don’t have a quantitative record,” he said.

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Joe MacGregor @joemacgregor.bsky.social · 19/04/2024

Snow4Flow LET'S GOOOOO! So excited for this. www.nasa.gov/news-release... Also it's Mara's birthday

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Joe MacGregor @joemacgregor.bsky.social · 08/03/2024

There's a lot going on in this excellent article, and way to go his brave students for standing up to this toxic mentor, but Dr. Dias' collaborator review timelines are hilarious.

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Joe MacGregor @joemacgregor.bsky.social · 01/03/2024

For the glaciologists

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