Having now been lecturing for a few years, I’ve had the opportunity and time to think about what kind of lecturer I want to be. I wrote this down a while ago but decided to share it now – because thinking about and sharing best practice makes us all better teachers, and because ECRs just starting to think about teaching might find it useful.
There is often a lot of doom and gloom in Academia. People discuss the workload, the work-life balance, and the difficulty in taking maternity leave or having a family. For example, this recent piece in The Guardian highlights one professor’s less-than-positive experience of having children as an academic. The Times Higher Ed writes about the leaky pipeline, often attributed to the difficulty in balancing motherhood and an academic career.
However, I believe that, while there are often difficulties, I think there are also reasons to be positive in Academia. In my opinion, in terms of family life, Academia is no worse than, and in many places better than, most other professional careers. There are advantages and disadvantages in an academic career when it comes to family life, but in many ways they are similar to the challenges faced by many professional women across a spectrum of careers. Many of these are societal, rather than academic, issues. I would hate a young, promising academic to be put off just because they only perceive the negative aspects. Continue reading
Antarctic Peninsula ice shelves | Ice shelf collapse on the Antarctic Peninsula | Rifting on Larsen C | Impact of calving the large iceberg | Sea level rise following ice-shelf collapse | References | Comments |
Antarctic Peninsula ice shelves
The Antarctic Peninsula is fringed by floating ice shelves. They are floating extensions of the glaciers on land, and receive mass by snowfall and marine freeze-on. They lose mass by melting at their base and by calving icebergs. Larsen C Ice Shelf, the largest ice shelf on the Antarctic Peninsula, is currently being closely watched. Following a series of high-profile ice-shelf collapse events on the Antarctic Peninsula over the last few decades, all eyes are watching Larsen C and wondering when, and if, it will collapse.
A growing rift on Larsen C Ice Shelf
Those concerns are growing more acute as a large rift on Larsen C Ice Shelf is growing rapidly, threatening to soon calve a huge iceberg, equivalent to losing 10% of the area of the ice shelf. This could destabilise the ice shelf, making it more susceptible to a total collapse.
Around 27,000 years ago, ice sheets reached their maximum across the world, after a period of global cooling caused by variations in the Earth’s orbit around the sun. There was a massive ice sheet in North America (the Laurentide Ice Sheet)[1, 2], a large Eurasian Ice Sheet covering Britain, Ireland and Scandinavia as well as northern Europe, an ice sheet in Antarctica, the Himalaya and Patagonia[5, 6]. Land near the ice sheets that escaped glaciation was cold, with tundra vegetation. Northern Europe was frequented by ice-age animals such as mammoth, reindeer and arctic hare. There was a landbridge betweeb Britain and Europe, and animals could walk freely across it. Numerous human artefacts from this time are scattered across the landscape.
What is going on with the Antarctic sea ice?
March 2017 was an interesting month for sea ice. Both northern and southern hemispheres experienced record breaking low extents for the time of year. The extent of Arctic sea ice reached the maximum area of its seasonal cycle on March 7th coming in at 14.42 million km2. This was a fraction below the previous record, set in 2015 and is in line with what we expect to see in a warming climate. Meanwhile the other side of the planet Antarctic sea ice continues to confound expectations. Continue reading
There are a number of web and news articles around surrounding the question of whether or not we will enter another ice age. Many of these questions arise from the idea that a collapse or significant melting of the Greenland Ice Sheet will produce enough fresh water to shut down the global thermohaline circulation, dropping us into a new ice age in the next 10,000 years.
Last autumn, I had two great pieces of news. The first was that I had been awarded a small grant to conduct three weeks’ fieldwork in Chile. The second was that I was pregnant.
I was obviously immediately interested in other people’s stories about fieldwork while pregnant. I could find only a few blogs about it on the internet, so I thought I would write about my own experiences of fieldwork while pregnant.
I’m delighted to have been awarded a £3000 Software Sustainability Fellowship by the Software Sustainability Institute. This promises to be a great collaboration and I’m excited to be working with the SSI to promote sustainable software practices.
Not to be outdone, the Quaternary Research Association has highlighted, as part of its 50th Anniversary celebrations, the UK’s top 50 Quaternary sites. Again, this is presented as an online clickable map. Continue reading
The Antarctic Peninsula is warming very rapidly, about six times the global average[1-3]. There has been a 95% increase in positive degree day sums since 1948. Glaciers in the region are accelerating, in response to frontal thinning and recession. In addition, ice shelves are collapsing, glacier fronts are retreating. The causes for much of these changes has often been attributed to ocean forcing, with warm ocean waters melting these glaciers from below[8-11]. However, while ocean forcing may dominate further south, such as at Pine Island Glacier, a few recent papers have highlighted the importance of surface processes and surface melt induced by warmer surface air temperatures and longer melt seasons, specifically on the Antarctic Peninsula. Continue reading