Thursday, October 14, 2021 at 2:30pm CST
This event is in the past. If the embedded recording does not play, please contact the webmaster.
Speaker: Ian Hamling, GNS Science
Host: Xiaohua Xu
Title: Our shifting planet: Utilizing satellite observations for measuring the deformation of the Earth’s surface
Abstract: 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) has revolutionized the way we measure the deformation of the Earth’s surface.
From the triggering of volcanic eruptions and zombie volcanoes to nationwide estimates of the interseismic deformation and Vertical Land Movements (VLM), this talk will cover a range of InSAR observations from across the SW-Pacific and explore how we can utilize these vast datasets to improve our understanding of volcanic and tectonic processes.