After five years, I finally got to go on fieldwork again[1]. This time, it wasn’t a month-long ordeal of Extreme Camping in Greenland, but a day-and-night trip as part of a Master’s course to the Swiss Alps. Specifically, the to Val d’Hérens, south of Sion, in the canton of Valais[2]. We were staying overnight in a large chalet in La Forclaz, at the top of the main valley, where it splits in two, the western branch going up to Arolla, the eastern branch up to Ferpècle. We were also pretty much at the Franco-German language border: the next valley eastwards was German-speaking, but that wasn’t terribly obvious during our stay. I was with 5 members of my research group to look after what turned out to be 6 students, which was a very favourable and, I think, unexpected ratio. The subject of the class was to provide an introduction to glacial geomorphology and dating techniques for determining the age of different features of the landscape. The students had to identify sites to sample, take the samples, and would then be analysing them in the labs and writing it all up over the course of the rest of the term.
Let me be clear, though: for the first time in my academic career, I was going on what I would unequivocally describe as a jolly. I wasn’t actually teaching on this course or required to drive the minibus or do anything really, so had absolutely zero skin in the game; I was purely a supernumerary member of staff along for the ride. As it turned out, one of the scheduled staff members got covid and couldn’t come, so me being there was perhaps more useful than expected, but only marginally. Though, as it turned out, this was the first time there’d been a specialist glaciologist member of staff on the trip, so I did get put on the spot to do some introductory glaciology, including extemporising a five-minute condensed version of one of the undergraduate supervisions I gave at Cambridge. So, in the end, it wasn’t quite a complete jolly, in that I probably usefully contributed for a whole ten minutes over the course of the day. It’s a tough life sometimes.
The day itself was largely spent wandering around the eastern branch of the valley above Ferpècle beneath a perfectly blue sky. After a brief introductory lecture for the students, we drove up to the car park where the road stopped, then walked up – I’d hesitate to qualify it as a hike, given it wasn’t far at all – through the old glacier moraines marking the Little Ice Age maximum extent[3] and subsequent retreat to the point where the valley divides again either side of Mont Miné. The eastern branch is occupied by the Glacier de Ferpècle, the western one by the Glacier de Mont Miné. As part of this, we also passed part of the hydroelectric installations that make up the Grande Dixence HEP scheme[5], which was something that I’d read a lot about and hadn’t realised we were going to be near. So I actually found that one of the more exciting bits of the trip, which was unexpected. We weren’t passing the main dam – the tallest in Europe – or reservoir itself, just one of the secondary installations, but it was still pretty cool. We then walked farther up the western branch of the valley towards the Glacier de Mont Miné, stopping every so often to explain a bit of geomorphology or glaciology. We stopped for lunch, and then had a couple of hours free, while the students were sent off to find sampling sites.
Obviously, we all walked up closer to the glacier. We didn’t actually get to it, because it was a bit far to do in the time we had and also because the Glacier de Mont Miné is now very much split in two. There’s a still pretty thick-looking upper glacier, then a large and steep cliff, with a much reduced lower glacier beneath it. Said lower glacier clearly receives a substantial amount of accumulation from the exposed terminal ice cliff of the upper glacier, so wandering around in a setting where a block of ice might suddenly fall on your head might be considered a tad unwise[6]. We therefore kept a very sensible distance. After that, we headed back down to where we’d arranged to meet the students and returned to where we’d left the vans, avoiding some aggressive-looking cows on the way and deciding on sampling sites for the following day.
That evening, there was some brief discussion of the sampling strategy for the following morning, before we all decided work was done and sat around having a chat. Then there was a big raclette for dinner for everyone, prepared by the very accommodating owner of the chalet. I even managed to have a shower. All in all, I’d had a very enjoyable day out in the field and able to get to know some of my colleagues a bit better. It turns out fieldwork doesn’t have to be a gruelling insanitary slog on iron rations. Maybe I’ll even get a chance to do some more over the next couple of years….
And, as a coda, I had to leave early the following morning to get back to Lausanne for some scheduled teaching I was actually supposed to be doing – the likely subject of a future post once I’ve got further into the course – so I can say nothing about the success or otherwise of the students in obtaining the samples they needed. It was probably fine – they seemed a fairly competent and motivated bunch.
[1] OK, so I wasn’t prevented from going on fieldwork in Grenoble or anything; it was just never very clear what the opportunities were and there were annoying administrative formalities to go through – surprise – so I never quite bothered to get round to it.
[2] Which gives me the opportunity to bring up one of my favourite toponymic facts: Valais takes its name from the same Germanic root that gives us Wales, Cornwall, Wallonia and Wallachia; that root pretty much just means ‘foreign’. Germanic speakers across Europe are seemingly a) not very imaginative and b) quite xenophobic, historically.
[3] This is probably one of those phrases that, working in glaciology, I forget is utterly meaningless to most people. The Little Ice Age was a slightly colder period in Europe – the name is a little grandiose – from roughly the mid-17th century to the mid-19th century, leading to well-recorded glacier advance in the Alps and Scandinavia. The glaciers went into retreat around about 1850 and haven’t looked back (or possibly forward) since[4].
[4] Actually, that’s not true. I’m giving the impression that it’s been a pretty linear retreat for over 150 years. It hasn’t. The glaciers retreated a bit after the end of the LIA, then mostly stabilised, and then really went backwards from the 1970s onwards. But the joke about looking forwards was too good to pass up.
[5] It’s a big hydroelectric scheme that gathers water from five adjacent Alpine valleys for power generation purposes and to help regulate flood risks.
[6] This makes the glacier one of the relatively rare examples of a dry calving glacier, which is itself interesting.