Dr. Jeffrey Kavanaugh πŸ‡¨πŸ‡¦'s Avatar

Dr. Jeffrey Kavanaugh πŸ‡¨πŸ‡¦

@jlkavanaugh

Glaciologist and Earth system scientist at the University of Alberta. Luthier, photographer, baker, and coffee maker. Two-wheeled travel enthusiast and dog companion. He/him.

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Latest posts by Dr. Jeffrey Kavanaugh πŸ‡¨πŸ‡¦ @jlkavanaugh

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Glare Squint GIF ALT: Glare Squint GIF
11.03.2026 17:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Mickey's Beach!

Damn - although I used to go there pretty regularly, I've not thought about that spot in many years. The boulder problems there were great for teaching humility.

11.03.2026 14:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I love mine. Mechanically it's a gem as well.

10.03.2026 21:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

That's as solid a rule as any known to humankind.

10.03.2026 21:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Taylor Glacier's climate is cold enough that it loses ice mainly by sublimation - evaporation of ice to vapour - rather than melt, which is probably why the surface textures are so pronounced there.

We found a pretty good correlation between average wind speed and surface roughness on the glacier.

10.03.2026 16:53 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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...and where ice is exposed to consistent strong winds, such as almost everywhere along Taylor Glacier, Antarctica (where I spent two Austral summers back in '02-/'04).

This isn't the greatest picture of the features, but I had it at hand. This was a *very* rare calm-ish day on the glacier.

10.03.2026 16:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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You find them also in subglacial cavities where water flow, such as here (below Llewellyn Glacier, British Columbia)...

10.03.2026 16:16 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Beautiful! Those features result from fluid flow across the surface; either water or wind will do.

10.03.2026 16:01 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Abraham Lake never misses.

10.03.2026 15:59 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I've been feeling exactly this for eleven years now.

10.03.2026 13:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I feel a personal connection to Doug's guitars, as my uncle cut his teeth in lutherie working with Doug back in the '70s at Alembic.

I have a stash of cocobolo set aside for a Tiger tribute, but I'm not ready to build it yet. (And besides, I have a Wolf tribute to build first.)

10.03.2026 13:09 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Well, damn. Here's hoping Tiger doesn't end up in a vault in some private collection, never to be played or seen again.

10.03.2026 13:09 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

With that in mind, here’s Logan.

10.03.2026 12:31 πŸ‘ 16 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1

Ah yes, the tandem bicycle - a.k.a. the "divorcycle."

09.03.2026 21:15 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I'm sure it takes perfectly fine pictures, but the ludicrous price here is definitely due to the combination of "Leica" + unobtanium.

09.03.2026 20:54 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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holy shit

09.03.2026 01:20 πŸ‘ 14130 πŸ” 3082 πŸ’¬ 236 πŸ“Œ 602

Those must’ve been wild times.

09.03.2026 02:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I’ll always have a soft spot for the ol’ Tiger - we restored one way (way!) back in high school auto shop.

The car is so tiny that the spark plugs for the V8’s rear-most cylinders are accessed through ports in the driver’s and passenger’s footwells.

09.03.2026 01:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I get it; we get dark here late enough already for it not to matter much.

It just has no business being almost 2pm already.

08.03.2026 19:49 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Chonker.

08.03.2026 19:35 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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a little girl is dancing with the words i said what i said behind her Alt: a little girl is dancing with the words i said what i said behind her
08.03.2026 19:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

We should stick to Standard Time.

08.03.2026 19:31 πŸ‘ 9 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
teewatterss on Threads:
β€œlosing an hour on international women's day feeling very 75 cents on the dollar”

teewatterss on Threads: β€œlosing an hour on international women's day feeling very 75 cents on the dollar”

10/10 take. no notes

08.03.2026 16:47 πŸ‘ 10286 πŸ” 2257 πŸ’¬ 3 πŸ“Œ 31

I think you're right (as @ltrytten.bsky.social pointed out earlier). I'd be happy for it to stream there, too!

(I believe the person interviewed on CBC commented that it had originally aired, at odd hours, on CBC - but certainly could have misinterpreted.)

08.03.2026 19:21 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

At least nobody's hit the "Buy It Now" button.

(Yet, anyway.)

07.03.2026 23:42 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

When I was roadracing and training in Northern California back in the β€˜90s, pretty much everyone waived and got a waive back in response.

I’m in a different place now, it’s a different era, and most of my riding is for my daily commute. But I still waive, and nobody *ever* waives back. A sad loss.

07.03.2026 21:08 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Very cool!

07.03.2026 19:04 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Haha, I’d not heard of that incident - but love it!

07.03.2026 18:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Listening to Edmonton’s CBC Radio 1, and I’ve just learned that SCTV is going to be re-released.

Unfortunately, it’ll be streaming on Prime, rather than on its proper home: CBC.

Fucking Bezos.

07.03.2026 17:42 πŸ‘ 28 πŸ” 1 πŸ’¬ 5 πŸ“Œ 0

To be fair, that black goo is worth at least $100k on its own.

/s

07.03.2026 16:06 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0