Alps trip Part 1: Field site reccy

Once again I’ve had a bit of a gap between blog posts and once again this is because I’ve been very busy. This time my excuses are buying a house (a worryingly adult thing to do!) and a short trip to the Alps, which is the main subject of this post.

My Dad and I drove out to Chamonix in the French Alps where we stayed with Simon Abrahams, a mountain guide friend of Dad’s (check out his twitter for lots of nice pics of mountains). Both Dad and I were rusty on our glacier safety and crevasse rescue techniques so this was a grand opportunity to have Simon run through these drills with us. I also needed to road-test some new crampons that were replacing Dad’s old 1970s spikes that I’d been using previously. The impossibly difficult bindings of these retro crampons were often the source of a lot of colourful language at the end of a long day on the ice! I am not sorry to be shot of them.

After our tiring drive (sleeping in the car is always a bad idea), we decided to break ourselves in with a bit of a hike. I wanted to check out the Mer de Glace as a potential field site, so we decided to traverse across to the glacier from the mid station of the Aiguille du Midi cable car (Plan de l’Aiguille at 2,317 m above sea level), before descending back to Chamonix. The walk took around 6 hours, giving us a bit of acclimatisation time at a reasonable altitude.

 

I was impressed by how much the Mer de Glace has retreated and down-wasted over the last 150 years. The sign in the photo below indicates the level of the glacier surface in 1820 and you can see how much lower the ice is now. My Dad could see a huge change from the last time he visited in the 1980s and I could even see a reduction in the glacier’s size since I was last there in 2009. Evidence of climate warming in action!

 

This dramatic shrinkage is shocking but exactly what I’m looking for in terms of my own work – I need accessible glaciers with significant recent retreat. Clearly the Mer de Glace has the retreat box ticked and it even has a train service right up to the ice, bingo for accessibility! Even better, we have numerous paintings, sketches and photos (like the ones below) showing the extent of the glacier at its most recent advance, during the cooler period of the Little Ice Age at around AD 1800.

This Figure is taken from Zumbuhl et al. (2008, Global and Planetary Change pp.42-57).  Part (a) shows the snout of the Mer de glace painted by Samual Birmann in 1823. (b) shows the same view photographed by S.U. Nussbaumer in 2005 and a zoomed in view of the snout position, with the snout marked by the white arrow.

This Figure is taken from Zumbuhl et al. (2008, Global and Planetary Change pp.42-57).
Part (a) shows the snout of the Mer de glace painted by Samual Birmann in 1823. (b) shows the same view photographed by S.U. Nussbaumer in 2005 with a zoomed in view of the snout (marked in the main image by a white arrow).

 

On other hikes, I also had a look at the Glace des Bossons and the Glacier d’Argentiere as possible field sites. However both of these glaciers have retreated so much and so quickly that they have exposed polished bedrock and scree slopes around their snouts, which would be too unsafe to work on. When we were up near the Glacier d’Argentiere we witnessed 3-4 ice falls on the glacier snout over the course of around 20mins. I’d certainly not be keen to be getting up close to that!

 

So it looks like the Mer de Glace is going to be the optimal field site for me, if I decide to work in the Chamonix valley. Now I just have to write up some grant applications and work out the logistics!

 

 

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