Antarctica

The SkyTEM Antarctica project aims to map subsurface resistivity using the Time Domain Electromagnetic (TEM) method which offers a non-invasive and efficient way to determine the subsurface distribution of water salinity, hydrogeologic connectivity, buried geomorphic surfaces, including buried ice and permafrost extent. 

The newly developed transient electromagnetic system is ideal for use in Antarctica for distinguishing between high resistivity (glacier ice and bedrock, permafrost) and low resistivity materials (geologic materials that are clay-rich and/or saturated by salty water) to a depth of 300 m or greater.

The SkyTEM system (developed at Aarhus University) is mounted under a helicopter for an extensive geophysical survey of the McMurdo (MCM) region to generate three-dimensional maps of subsurface resistivity structure over inaccessible terrain. Despite the high potential for TEM to address important science questions in geobiology and the earth sciences, Airborne EM methods has to date not been deployed in the polar regions, and hence the study will be a proof-of-concept for the applicability of the TEM method for mapping the conductivity, depth of water and permafrost in Antarctic subglacial and subsurface environments.

Preliminary results from Taylor Valley


The Taylor Glacier is clearly seen as a an area with a high resistivitve as compared to the meltwater flowing beneath the glacier.

Publications/Conferences

Auken E., Mikucki J., Sørensen K. I., Schamper C., Sab G.-A., and Tulaczyk S., 2012, First airborne transient EM survey in Antarctica: mapping of saline ground water system. Near Surface annual meeting – Remote Sensing Workshop (Paris, 3-5 September 2012). presentation

Sab G.-A., August 2012, Data processing of an Airborne Electromagnetic survey in Antartica. Master thesis. pdf

Auken, E., 2012, Near-surface Geoscience, 18'th European Meeting of Environmental and Engineering Geophysics, Paris, France.


Danish newspapers and online journals: 
Ingeniøren - Grundvand i Antarktis kortlagt med helikopterbåret dansk system
Århus Stiftidende - Århusiansk opfindelse revolutionerer Arktis forskning
Aktuel Naturvidenskab - Dansk teknologi kortlægger Antarktis undergrund 
Aarhus University newsletter - SkyTEM trumferer i Antarktis 


English newspapers and online journals:
The Antartic Sun - Scratching beneath the surface 
National Science Foundation - First-ever use of airborne resistivity system in Antarctica allows researchers to look beneath surface in untapped territories

The SkyTEM system helps american scientists on Antarctis - Dansk version

© Science Media Lab, Aarhus University.

The SkyTEM system helps american scientists on Antarctis - English version

© Science Media Lab, Aarhus University.

Timelapse video of a SkyTEM frame assembling

The frame took 3 days to assemble, but in this video the work has been boiled down to only one and a half minute.
© Science Media Lab, Aarhus University.