Associate Professor Linlin Ge
Associate Professor Linlin Ge, has a voyeuristic fascination with the earth and how it changes, particularly with regards to earthquakes and ground surface subsidence.
His research interest is around radar remote sensing and integrating it with optical remote sensing, GPS and GIS for an overall increase in quality of data. He collects data from a range of platforms such as satellites and aircraft, including UAV (unmanned aerial vehicles).
Linlin Ge’s major research project is funded by the Australian Research Council. It concerns the development of innovative satellite and UAV imaging radar techniques for measuring three dimensional ground deformation over a large area – and doing so with high accuracy but using less images.
“A highly accurate, cost-effective and wide-coverage radar remote sensing technique has the potential to underpin studies in multiple disciplines,” he said.
This technique can be used to monitor ground subsidence due to underground tunneling or groundwater extraction, thus safeguarding infrastructure in our large cities. It can also be used to watch subsidence due to underground mining or oil/ gas extraction and injection (including coal seam gas extraction and CO2 storage) and therefore minimise their environmental impacts and maximise the extraction of mineral resources.
Such accurate imagery can also be used to monitor ground deformation along seismic faults and at volcanoes so that earthquakes and volcanic eruptions can be better predicted.
Linlin Ge won the NSW Scientist of the Year Award in 2009 in the Physics, Earth Sciences, Chemistry and Astronomy Category for the successful near real-time mapping of the 2008 Sichuan Earthquake and 2009 Victorian Bushfire. His ultimate goal is to make remote sensing more timely, accurate, affordable and widely applicable.
“In the future I hope that the space-advanced countries can work together to deploy constellations of optical and radar satellites so that every corner of the Earth can be imaged at any time,” he said.