Bureau of Meteorology

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How does Australia’s tsunami warning system work?

How does Australia’s tsunami warning system work?

Australia is in a very stable location, in the middle of a continental plate and away from major fault lines, but we are very close to the Pacific ‘Ring of Fire’—the source of 75 per cent of the world’s volcanoes and 80 per cent of its major earthquakes. Tsunamis generated in the Pacific or...

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AskBOM: What is a thunderstorm?

AskBOM: What is a thunderstorm?

Thunderstorms are associated with very tall clouds called cumulonimbus that produce turbulence, lightning and thunder. So what causes them, and what's really going on up there? How are thunderstorms formed? Thunderstorms need three ingredients to form: Moisture—humid air carrying a lot of water vapour,...

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Groundwater: is too much salt a bad thing?

Groundwater: is too much salt a bad thing?

All natural water contains some level of salt, and in groundwater the concentration can naturally vary from fresh to saltier-than-seawater. While small amounts of salt are vital for life, high levels can limit groundwater use and affect ecosystems that depend on groundwater. The Bureau has now added salinity...

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Surging ahead: careers in water

Surging ahead: careers in water

There’s a lot more to the Bureau than just meteorology—while we’ve retained a strong focus on meteorological services over the past 100 years, these days we also focus on the interactions with our ocean, land and water resources, and the ecosystems that depend on them. A balancing act Water...

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To Bourke and beyond: one scientist’s epic journey to 112 weather stations

To Bourke and beyond: one scientist’s epic journey to 112 weather stations

There are 112 weather observation stations that feed into Australia’s official long-term temperature record—and Bureau scientist, Blair Trewin, has made it his personal mission to visit all of them! Having travelled extensively across Australia—from Horn Island in the north to Cape Bruny in the...

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