RIISQ and CentrEau webinar titled "Integration of information on climate variability and change in flood risk modelling"
Speaker: Prof. Taha Ouarda, INRS-ETE
Summary: Extreme hydrological events can have adverse effects on ecosystems, infrastructure and public health. Observations and results from climate models indicate an increased recurrence of these extremes with climate change. This increase in frequency is also associated with a significant increase in the magnitude and duration of these events and an intensification of their consequences. Low frequency climatic oscillations also have an impact on the occurrence and intensity of extreme hydrological events. The integration of signals associated with climate change and variability in the modeling of hydrological extremes is interesting and can be done through models in which the parameters depend on covariates. The use of covariates is an effective way to capture external climate forcings. We will also discuss statistical models which manage the additional complexity associated with integrating covariates into the models and bring these models to the same level of difficulty as conventional stationary models. We will also present results on the change in the distribution of extremes in a non-stationary framework, and on the integration of information in mixed and multivariate models.
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