Date/Time
Date(s) - Thu 18 July
19:30
Location
Lecture Theatre One (GBLT1), Old Government Buildings, VUW
The surface of our planet is constantly deforming and changing shape in response to the build-up and release of tectonic strain before and after an earthquake or the movement of magma in the crust. In the past, measuring this deformation was time consuming, expensive and in the case of volcanoes, often required the observer to venture into difficult or dangerous regions to make measurements. However, the development of a technique known as Interferometric Synthetic Aperture Radar (InSAR) in the early 90s has revolutionized the way we measure the deformation of the Earth’s surface. By differencing the phase components of radar signals produced by satellites orbiting ~700 km above the Earth, we can measure millimeter scale surface displacements over thousands of square kilometers. From volcanic eruptions and zombie volcanoes, to measuring large scale deformation across the whole of New Zealand, this talk will explore some of the uses of satellite radar interferometry and how we can utilise these vast datasets to improve our understanding of volcanic and tectonic processes.
All welcome.
For further information contact Joe Prebble, j.prebble[at]gns.cri.nz.