E16: Flood Risk

Statistically Insignificant

To help people in the current NSW floods please donate to:

Lismore Council: https://lismore.nsw.gov.au/flood-2022-information

Local SES: https://www.ses.nsw.gov.au/get-involved/donations/ Pick a unit in a flood affected area, a list can be found under AGRN 1012 here: https://www.nsw.gov.au/disaster-recovery/natural-disaster-declarations

In light of the ongoing flooding on the east coast of Australia, we talk about how flood risk is analysed. What does it mean to have a 1 in 100 year flood? What does it mean for a location to have a 1 in 100 year flood risk? What is the probability of seeing two such events in 20 years?

Support the pod on Patreon for bonus episodes, early access, and additional material: https://www.patreon.com/statisticallyinsignificant

References:

Pitman, A., Ukkola, A., and Westra, S. (2021) 'What is a 1 in 100 year weather event? And why do they keep happening so often?', The Conversation, published 23rd March. Accessed 15th March 2022 https://theconversation.com/what-is-a-1-in-100-year-weather-event-and-why-do-they-keep-happening-so-often-157589.

Queensland Floods Science, Engineering and Technology Panel (2011) 'Understanding Floods: Questions & Answers', Queensland Government. Accessed 13th March 2022 https://www.chiefscientist.qld.gov.au/_data/assets/pdffile/0022/49801/understanding-floodsfullcolour.pdf

The video version of this episode is at https://youtu.be/czSocO_oIhI

If you have a statistic or a chart you'd like us to talk about contact us.

Email: [e-mail]

Twitter: @StatInsigPod