Only cost Larry Csonka $5000.
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Only cost Larry Csonka $5000.
30’C here in Pemby this week, ski season is mostly done so I’m back on the Interwebz, hadn’t seen this thread before.
Cody here’s a couple pics from Combatant from 2 weeks ago. Less than ideal conditions this season.
Attachment 282312
Attachment 282313
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Damn, maybe it's a good thing you skied Joffre this year. Twisting couloir is gone. I'm sure Pemby locals will start posting pics of a massive landslide shortly...
just saw Cody's insta post about that!!! Holy shit that is a crazy slide.
That landslide IS massive based on the photo Cody just posted on FB. Crazy. It looks like the mountain is steaming on one of the photos, like the dust still settling. The debris flow looks other worldly. Devastation.
re. Joffre, that's fuggin' nuts!!! man, I thought having something like Meager happen in my lifetime was something, but two massive landslides within such close proximity is extremely wild
Wow, yeah, huge slide.
That isn't the Combatant couloir. The image you posted is the right arrow, the Combatant couloir is the left arrow, which is out of sight in those photos. Makes a pretty big difference as Combatant does not have the glacial features that the other couloir doesQuote:
Originally Posted by Maximus Farcisimus
https://www.tetongravity.com/forums/...172015&thumb=1
Holy shit
yeah, no kidding. If you were anywhere it that valley you'd be so fucked.
Massive landslide discussion > film permitting nuances, but I thought Dav and team shot a bunch of skiing w/out a permit. Then months later they tried to secure a permit retroactively to use that footage in his commerical film. Could be the permitting folks just wanted nothing to do with a “Red Bull” film, but I think he would have been SOL either way after shooting so much w/out a permit.Quote:
Originally Posted by Alkasquawlik
That landslide is quite an event. Shit is massive! Idk what the approach was like before but should be pretty straightforward now:eek:
another shot of the slide from Ministry of Transportion avy techs
Attachment 282368
Here's a better shot of Joffre after and before. After shot from Jamie. Before shot I took around 2010
Twisting Couloir gone. Looks like that whole block of choss fell off the NE face. On the bright side access improved!https://uploads.tapatalk-cdn.com/201...5ec2667335.jpghttps://uploads.tapatalk-cdn.com/201...6080de0cce.jpg
Man look at that ice hanging up there.
Access? Up the debris flow? Fuck that. The flake is gonna keep peelin for a few, yeah?
Some Aussie and/or citiot will bootpack straight up it. Guaranteed!Quote:
Originally Posted by Norseman
That’s the shot I wanted to see. Holy shit.Quote:
Originally Posted by LeeLau
So Twisting Couloir is now a ski BASE line?
Went up the summer trail this afternoon to check it out. Once I got the drone up 1500’ and saw this, I bailed and went out the long way. No need to go back down the drainage under that slurpee of death. Looks like Lee already posted my other pic Attachment 282394
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Yeah, I was reading and looking over the 50 Classics book before I left and Google Earth too. Wasn’t sure. Thought it may have been the bigger of the ones up there, looks like Combatant is 500m according to Google Earth. Did get a glance at it the following day from lower down the NW ridge. Hope someone is bagging that other one far right.Quote:
Originally Posted by rwalk
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If that happened in winter there would.be a lot of corpses. .wowQuote:
Originally Posted by Maximus Farcisimus
I think this woulda been it, top hidden left the arrow?
We were planning to make the trip this year to ski all of those couloirs up that col, but the low tide year had us postpone to next year Seems like the right call after seeing these current photos, although I guess I'm not quite sure how well-bridged those crevasses get on a typical year, they seem pretty open compared to what I'd expect to see.Quote:
Originally Posted by Maximus Farcisimus
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The crevasses are usually well bridged. It's shockingly low tide this year in the Wadd Homathko NiutQuote:
Originally Posted by rwalk
I wonder how many people over the years backed off Twisting while saying something like "the mountain will always be there". Or maybe not. In the 50 Classic Climbs book there are 2 routes with pitches that no longer exist in original form due to rockfall (Northcutt-Carter and Middle Triple). Kind of amazing how quickly mountains can change (not saying anyone should climb and ski sketchy stuff thinking the whole mountain will fall apart or something, ha)
Goldenboy, or Mt Steele's ( in the Ste Elias range Kluane in the YK) NE face.
Not looking so good anymore
https://uploads.tapatalk-cdn.com/201...9ebe0a5243.jpg
crazy, i'm guessing that would accelerate glacier melt....Quote:
Originally Posted by LeeLau
Not to mention Meager, LeeLau.
Maximus has a good video of Meager. I bet Plinth Peak will fail too. Same sedimentary rock. Same geologic zone.Quote:
Originally Posted by goldenboy
Fingerpoint ridge off James Turner close to Wedge in spring 2015. That was big https://uploads.tapatalk-cdn.com/201...73e8a28597.jpg
oh I had forgotten about that Turner slide!Quote:
Originally Posted by LeeLau
What really strikes me is the runout distance in/on low angle terrain of these types of events... 'specially with the melted snow/ice lubricating the mess. Mind boggling, humbling, terrifying.
https://blogs.agu.org/landslideblog/...nche-mobility/Quote:
Originally Posted by swissiphic
Quote:
Rock avalanche mobility is controlled by the characteristics of material in the path of the flow
Rock avalanche mobility is one of the most intriguing aspects of landslide behaviour. It has long been recognised that this type of landslide tends to travel faster and further than would be expected from simple friction parameters. There has been a huge amount of debate as to the causes of this behaviour, with multiple theories having been proposed, some of which have been quite exotic. To date no consensus position has emerged, and the debate rages on.
In a new contribution to the discussion on rock avalanche mobility, a paper in the journal Engineering Geology (Aaron and McDougall 2019) examines 45 well constrained rock avalanche case histories to better understand the controls on their runout. Their work used a semi-empirical modelling approach to back analyse the mobility of the landslides, testing a series of hypotheses centred on the idea that rock avalnche mobility is controlled, at least in part, by interaction with the basal materials that they encounter along their path. This is perhaps most easily imagined in the context of flowing over glacial ice, such as in this beautiful example:
In this case, flowing over a very low friction ice surface might be expected to increase rock avalanche mobility. The same might also occur where the landslide encounters loose, saturated materials, but perhaps to a lesser degree.
The authors conclude that for many of these landslides their behaviour can be best modeled by assuming that the frictional rheology / resistance of the landslide changes in the transition from the source zone to the runout path. In general where the rock avalanche ran across bedrock, the resistance to motion was found to be high, but where the path traversed ice or a saturated substrate the resistance to motion was found to be much lower.
The results are a really interesting contribution to the debate. This matters as high mobility rock avalanches can have a devastating impact on communities and infrastructure, and unsurprisingly there is increasing interest in trying to forecast likely behaviour. As the authors state:
“…forecasts must parameterize the relationship that governs the basal resistance the rock avalanche experiences during emplacement…this choice must account for the expected shear characteristics of the path material”
Reference
Aaron, J. and McDougall, S. 2019. Rock avalanche mobility, the role of path material. Engineering Geology. https://doi.org/10.1016/j.enggeo.2019.05.003
gear bonus episoda
two beers
https://www.youtube.com/watch?v=ZuCEOKhvd5k
Always interested to hear about the gear selection process.
It has as much to do with mission success as physical conditions in my books.
It's sad to see a grown man beg. I hit the sub button.
Hah, finally guilt tripped into subscribing to the Youtube channel. It's ok though, mostly for selfish reasons - such a good excuse to drink a beer and watch rad skiing.
me too. my first youtube sub.
Dig the Tram Face poster. Never happened of course, but wish they'd try it again after going 0-3.
SHOW US YER BOOT MODS!!! :cussing:
2nd vote. In fact, i'm boycotting all future episodes till we see the boot mod only bonus episode! It's all that local peeps were whispering about in hushed tones in our local Tim Horton's at 5am this morning... Pickets and protests in downtown Terrace starting asap! We want justice! :DQuote:
Originally Posted by meter-man