Tim Raupach - The effects of climate change on hailstorms

Event type: 
Seminar
Date: 
25 March 2020
Time: 
2.00pm - 3.00pm
Location: 

Via Zoom: Join from PC, Mac, Linux, iOS or Android: https://unsw.zoom.us/j/752140687

Presenter: 
Dr. Tim Raupach
Climate Change Research Centre - UNSW
Host: 
Climate Change Research Centre

Hailstorms cause damage in many regions every year. Many of the processes that affect hailstorm duration, intensity, and frequency will be affected by climate change, so there is a general expectation that hailstorm properties will change as the climate changes. However, the exact nature of the changes to hailstorms remains highly uncertain. This uncertainty is driven by limited long-term hail observations, incomplete process understanding, and a scarcity of high-resolution modelling studies that can explicitly resolve hailstorms. In this talk I will discuss the current state of research on the effects of climate change on hailstorms. I will cover the reasons for the uncertainties, discuss relevant processes and their interactions, and show current conclusions on hailstorm trends and future projections across the world. In the second part of the talk I will show results from a study that tested a feature-based technique to track simulated thunderstorms in the topographically complex region of the Alps, as an example of an object-based technique for studying changes to convective storms.

Brief Biography:Tim Raupach is a postdoc at UNSW's Centre for Climate Change Research. His research focuses on precipitation microstructure, remote sensing of rainfall, and atmospheric convection. His undergraduate and masters studies were at the Australian National University, and he received his PhD from the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland, in 2016. He held postdoc positions at EPFL and the Oeschger Centre for Climate Change Research at the University of Bern before moving to UNSW in January 2020.