Wednesday Science Week Event

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Play, download and edit the free video Wednesday Science Week Event.

This is a recording of the event "That's Elementary My Dear, Satellites Detect Environmental Change", a seminar and Q&A with UNSW Sydney's Professor Graciela Metternicht, and PhD Candidate Bonnie Teece, both partners in the COALA Project. This event was held as part of the 2021 Australian National Science Week.
Increasingly farmers, meteorologists and climate sciences are turning to satellites to learn more about Earth, using a technique called remote sensing. We will present a case study of how important remote sensing can be, using Menindee lakes as an example. Menindee lakes are good to show how Earth Observation can help to understand changes in landscape dynamics and to rapidly monitor the impact of those changes. Persistent drought left them practically desiccated since 2016. A million fish died in 'distressing' algal bloom at Menindee lakes in early 2019; the extreme summer conditions of 2019 could have intensified a normal phenomenon like the development of algae in the lakes, that killed the fish.
Images from satellites of the NASA and the European Space Agency can tell the story, showing how the system of lakes was bursting full of water in 2016, and then experienced 5 years of constant decrease of freshwater, until the summer of 2020-21, when from December through February many parts of New South Wales experienced the heaviest rainfall and worst flooding in six decades. A lot of those floodwaters slowly made their way through the Darling-Baaka River system in northern New South Wales and reached the Menindee Lakes, that are once again brimming with life.

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