Ground penetrating radar (GPR) and Photogrammetry, electrical resistivity tomography (ERT), electromagnetic and topography data of polygonal patterned ground in the Victoria and Beacon Valleys

The long transect ran from near the top of the ridge to the SW of the upper Victoria Valley to the other side of the narrows in the lower Lake Victoria. The transect was initially profiled using ERT, then a series of contiguous, sometimes overlapping time-domain EM soundings were acquired in the valley along the transect. A deep GPR profile was acquired and a total magnetic field survey line was completed.

Finally, the topography of the transect was surveyed. These geophysical images target the deeper bedrock and massive ice targets. In Beacon Valley an initial reconnaissance of the area was completed and two polygons were selected for detailed geophysical imaging and a 1.2km transect running NW-SE across the valley was completed for large-scale deeper structure and stratigraphy.

The two polygons were both surveyed using 3D GPR imaging, ERT, HLEM and detailed topography. Deep GPR and ERT profiles, as well as topographic surveys were acquired along the transect.