Droughts and flooding rains – statistical methods for hydrological extremes


Fiona Johnson


UNSW Faculty of Engineering


Wed, 17/04/2019 - 4:00am


RC-2060, The Red Centre, UNSW


Hydrological extremes by their very nature are rare events and require
careful use of statistical methods to ensure robust and reliable
predictions. This presentation focuses on two case studies of
application of statistical methods in hydrological engineering. The
first example is the use of discrete wavelet transforms to better
understand the drivers of multi year droughts in the Murray Darling
Basin and how the frequency and severity of these events will change
in the future. The second case study focuses on the other side of the
metaphorical hydrologic coin - flooding rains and application of
extreme value statistics to quantify the risk of extreme rainfall
events historically and into the future.

This seminar is part of the School of Mathematics and Statistics'
'Mathematics for Planet Earth' initiative. For more information go to

Speaker Bio:
Fiona Johnson is a Senior Lecturer and Scientia Fellow in the Faculty
of Engineering, School of Civil and Environmental Engineering. She is
interested in changes to flooding, droughts and extreme events due to
climate change and her research focuses on how best to use climate
models in engineering design, with a particular interest in
statistical methods that can answer these questions.  Through her
research, Fiona aims to provide sustainable solutions to the water
engineering problems faced by communities, particularly those in
developing countries.

School Seminar Series: