The Australian desert is green. Kati Thanda-Lake Eyre in South Australia has filled with water after a very wet monsoon season, turning its usual dry salt plain into a huge lake. Water came down three big river systems from western Queensland: the Georgina, the Diamantina and Cooper Creek. Rain there was about 50 per cent above the long-term average. It caused floods that killed livestock and cut outback roads. Rain that fell locally between March and August added more. Guardian reporters flew over the lake and saw green plants, desert flowers and thousands of pelicans. The lake has no outlet to the sea and empties only by evaporation. It is about 9,500 square kilometres, Australia's largest. The centre of the continent has not been changed like this since 1974.
Kati Thanda-Lake Eyre sits about 15 metres below sea level, the lowest point in Australia. It runs 144km long and 77km wide and holds a salt crust estimated at 400 million tonnes. When dry, the flat is firm enough that British driver Donald Campbell set a land speed record there in 1964. The lake is fed mostly by the Warburton Creek, which cuts a dark channel across it. As water evaporates, salt levels climb to several times that of the ocean. Tiny animals hatch from eggs left in the salt, fish follow, then birds. That food chain is why pelicans gather in the thousands. Scientists who surveyed the birds in early October counted about 800 adults and young, plus a few hundred dead chicks, most likely from a lack of food.
The lake shows how one very wet year can bring a desert back to life, and how quickly that life fades again. It also reminds outback towns that big floods bring damage along with renewal.

The Australian desert is green. Kati Thanda-Lake Eyre in South Australia has filled with water after a very wet monsoon season, turning its usual dry salt plain into a huge lake. Water came down three big river systems from western Queensland: the Georgina, the Diamantina and Cooper Creek. Rain there was about 50 per cent above the long-term average. It caused floods that killed livestock and cut outback roads. Rain that fell locally between March and August added more. Guardian reporters flew over the lake and saw green plants, desert flowers and thousands of pelicans. The lake has no outlet to the sea and empties only by evaporation. It is about 9,500 square kilometres, Australia's largest. The centre of the continent has not been changed like this since 1974.

Kati Thanda-Lake Eyre sits about 15 metres below sea level, the lowest point in Australia. It runs 144km long and 77km wide and holds a salt crust estimated at 400 million tonnes. When dry, the flat is firm enough that British driver Donald Campbell set a land speed record there in 1964. The lake is fed mostly by the Warburton Creek, which cuts a dark channel across it. As water evaporates, salt levels climb to several times that of the ocean. Tiny animals hatch from eggs left in the salt, fish follow, then birds. That food chain is why pelicans gather in the thousands. Scientists who surveyed the birds in early October counted about 800 adults and young, plus a few hundred dead chicks, most likely from a lack of food.

The lake shows how one very wet year can bring a desert back to life, and how quickly that life fades again. It also reminds outback towns that big floods bring damage along with renewal.

📰 Source: News Source
theguardian.com ↗
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