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The coldest month


March 2011

Copenhagen, Denmark

It seems that the biggest adventures of my life always started in a big city. I had just turned 23, and was keen to get more experience under my belt. After spending some weeks at home and in Svalbard that year, I was ready for more time in high latitude environment. I was reuniting with Sam Doyle, my teammate in the Himalayas, and then Dr. Alun Hubbard, my MSc coordinator at the university of Aberystwyth. And with that, two new colleagues from Sweden, Prof. Rickard Pettersson and his PhD students Katrin Lindback. Together we are aiming to spend 3 or 4 weeks on the ice sheet, on a glacier called Russel Glacier Catchment above 1000 m in altitude. Air Greenland took us to Kangerlussuaq on the west coast of the island, a real Arctic hub at the head of a "big fjord" of the same name. 

We spent a few days there sorting out food, equipment, preparing our solar panels and research tools. I took over the little workshop at KISS, Kangerlussaq International Science Support, drilling, cutting, soldering, and cutting my hand in several places in trying to be quick. Sam was giving me lists of things to do every day, including my favorite mission "go for walk" ;)

During our time at KISS we bumped into two skiers who had both their hands wrapped like boxers. They had just been evacuated from the ice during their crossing of the ice sheet, and a sudden drop of temperature caught them at the worst moment, freezing the several pairs of gloves they had and their fingers... We spent the rest of the day buying every pair of gloves we could find in town, deeply scared about the things to come. This was my first big polar expedition, and I was not quite ready for it.

It took us three twin otter flights to bring all of us and our kit on the ice. The main problem was fitting a snowmobile in the plane, which requires a lot of Tetris skills. The D day had come, finally, ice time.


The flight was incredible. The ice sheet looked a lot more heterogeneous than I had imagined. There were giant crevasse fields, hills, troughs, the first ice sheet I ever saw and worked on. 

"Welcome to hell" said Sam as soon as we landed. And indeed, it was. At least during the first week. We started our expedition in the middle of a cold anomaly. While other polar institutes were getting their researchers off the ice, we were getting our little camp set up. For the first few days, we had to dig, dig dig dig. I always say that glaciologists are first and foremost Dr. in digging, and this was no exception. We were coming back to a site that Alun Hubbard and his team had been using for a few years, in the accumulation zone of the ice sheet. Accumulation means snowfall, and indeed the boxes, tents, overcraft for the previous years were buried deep in snow. This was the perfect strategy to keep us warm so we never complained about digging! We were particularly happy when we found the alcohol stock and the snacks.

In the little tent I was sharing with Katrin, we had placed a mini thermometer. When I was lying in my sleeping bag I had my eyes glued to the thermometer, crossing the -35°c threshold, then -40°c and eventually -44°c. This was inside the tent! When I said I was not prepared, it was mostly because my equipment could survive a balmy -20°c at the lowest, not -44°c. We all struggled so much with these temperatures. Our equipment was breaking, our bodies were suffering, every day was a battle against the cold. 

And in the middle of this cold wave, we had to do some science! Our expedition was a part of the Greenland Analogue Project, our mission was to focus on the hydrology of the ice sheet. For this, 4 main goals:

- servicing existing weather stations

- installing GPS

- burying seismometers

- do a lot of radar and hope to detect some subglacial lakes

The cold wave had a massive impact on our work. A polar expedition is always a race against time, and indeed, spending days and night fixing our broken equipment was not ideal. When the weather improved a bit, we decided to focus all our efforts on the radar, with one team working 12 H during the "night" and the second team working during the day shift. At that time, we were only four people left, my tentmate Katrin had to leave on a resupply flight. I lobbied to be a part of the day shift with Rickard and got my request approved by the rest of the team :)

Doing radar in Greenland consisted in dragging a 200 m long line of fiber optic cables with a snowmobile at 5 to 10 km per hour. One person had to drive the scooter of course, and a second one was in charge of the computer, sitting on a little sled 100 m behind the snowmobile. This was by far the coldest position of the job, with no way to stay warm or to shelter. This was when I developed many different ways to stay warm on this tiny stool, boxing the air, doing squats and dreaming of warmer days.

Radaring is also the best way to get a feel of the terrain, to observe, detect tiny changes in the slope, texture and density of the ice and the snow. More than once we found ourselves in the middle of gigantic and terrifying crevasse fields that required some delicate driving to get out of there asap while still collect great data. Sam also took me on shorter missions to fix weather stations, install GPS and the seismometers or find super moulins away from camp. This expedition was really a baptism by fire for me, I learnt some of the most important lessons of my life.