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SUMMARY:Aerogeophysics at the British Antarctic Survey: science\, sensors 
 and future systems - Tom Jordan & Carl Robinson (British Antarctic Survey)
DTSTART:20220519T160000Z
DTEND:20220519T170000Z
UID:TALK173849@talks.cam.ac.uk
CONTACT:104410
DESCRIPTION:Please register to attend on "eventbrite":https://www.eventbri
 te.co.uk/e/industry-lecture-tom-jordan-carl-robinson-british-antarctic-sur
 vey-tickets-319647984727\n\nAntarctica’s remote location and vast blanke
 ting ice sheets mean it is the least understood continent on our planet\, 
 yet these same ice sheets mean it has a global impact on sea-level as the 
 world warms. Satellite observations show us how the continent is changing 
 today\, but the processes governing ice flow and records of past change ar
 e typically found within and beneath the ice sheet. To observe the ice she
 et structure and asses the influence of underlying factors such as melt wa
 ter and geology\, airborne observations are key. At the British Antarctic 
 Survey (BAS) we use a suite of different airborne geophysical instruments 
 to observe and infer the structure of the continent from the surface to de
 pths of 10’s of kilometres.  These systems include active sensors such 
 as LIDAR to map the ice surface and RADAR to image the ice sheet structure
  and underlying landscape. Passive systems including magnetic and gravity 
 sensors allow an assessment of the underlying geology and interpretation o
 f tectonic processes. Where rocks are exposed (less than 1%) visual imager
 y and hyperspectral cameras can map out the geology\, informing wider subg
 lacial interpretation. BAS currently deploys its sensors on a Twin Otter a
 ircraft. This robust and well-proven platform can operate anywhere in Anta
 rctica\, only limited by the availability of fuel. Remotely piloted airbor
 ne platforms (RPAS) or drones can use two orders of magnitude less fuel\, 
 removing this key limitation\, enabling collection of critical higher reso
 lution data to inform our understanding of Antarctica and model its future
  change. However\, a new generation of small\, lightweight\, low-power sen
 sors capable of autonomous operation in some of the harshest conditions on
  our planet\, coupled with innovative new processing strategies\, are key 
 to opening up this new frontier of exploration.
LOCATION:CEB\, Lecture Room 1
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