During my career I have been involved in a number of exciting projects at the forefront of science. I have outlined some of them here:

Camp Century

In summer 2017, the Geological Survey of Denmark and Greenland undertook an expedition to Camp Century to initiate the Camp Century Climate Monitoring Programme established by the Danish Government in agreement with the Greenland Government. During the expedition, a science team installed an automated climate station that transmits meteorological and glaciological observations back to Copenhagen by satellite. The science team also drilled firn cores to measure near-surface density and gathered radar data measuring the extent of debris below the surface.

I am part of the team working on this project and currently I am analysing the radar data to map the location of the old Camp Century station.

Read more about the project at www.campcenturyclimate.dk

Firn properties with wireless sensors

Performing range tests at EGRIP camp with Liz Bagshaw (University of Cardiff), summer 2017.

The processes taking place in the snow and firn are extremely important for investigating the mass loss from the polar ice sheets, for understanding satellite measurements and for ice-core studies. This project is a collaboration with Liz Bagshaw from University of Cardiff. Together we are using wireless sensors (developed by Liz and colleagues) that measure and transmit information about pressure, temperature and electrical conductivity. More information about the suite of sensors can be found on the CryoEgg website. We presented our preliminary findings at the European Geosciences’ Union’s General Assembly in 2017 (abstract) and currently have a paper in review.

Liz tweets as @CardiffColdClim. For the non-expert, I wrote a blog post about our 2016 field campaign on the EGU Cryosphere blog.

 

The search for the Oldest Ice

One of the key goals for past climate studies is to retrieve an ice core containing ice older than 1.5 million years. By obtaining an undisturbed ice core stretching that far back in time, we will get closer to understanding a main switch in climate: The time where ice-age cycles changed from lasting 40,000 years to 100,000 years. During my time at the Alfred Wegener Institute I worked on the “Beyond EPICA – Oldest Ice” project, a large European project aiming to identify potential drill-sites. My work was focussed on the Dome Fuji region in East Antarctica and has been featured in different news media – including the Danish “Ingeniøren“.

The EGU Cryosphere blog has featured a post about the project, and the project can also be followed via Twitter @OldestIce

Mars’ mid-latitude glaciers

Since the beginning of my career, I have been involved in Mars polar science and it is a topic that continues to interest and excite me. The glaciers in the mid-latitudes on Mars are in many aspects similar to glaciers on Earth, only colder and much older. They are also a potential source of water for human exploration of the planet. My recent work has focussed on investigating the volume and deformation of the glaciers, and has featured in several news media including astronomy.com and the Danish videnskab.dk. I aim to continue working with ice on Mars in many years to come.

Image from the High Resolution Stereo Camera shows that the glaciers are covered by a layer of dust (Credit: ESA/DLR/FU Berlin).

Basal hydrology of Greenland

The existence of water under an ice sheet can determine both the speed of the ice movement and how the ice deforms. Yet, it is still a subject that is not completely understood and severely hampered by lack of direct measurements. During my time with the Centre for Ice and Climate I became interested in the subglacial water that shapes the Greenland Ice Sheet today and in the past. I have used numerical models to study the changes in northeastern part of Greenland in response changing water routes. I have used radar data to map the conditions at the bed of the ice sheet.