Millenium drought aus

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I love being a recession and scary drought baby!

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10 Terms

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type of drought

meteorological drought

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distribution

Affected most of Australia, generally southern parts

<p><span>Affected most of Australia, generally southern parts</span></p>
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effects on river systems

  • low rainfall, serious decrease in inflows to the River Murray

  • Wetlands were temporarily disconnected to make give more water to rivers

    • potentially destructive effects on ecosystem eg animals suited to drier conditions become invasive and disrupt ecosystem balance

  • Parts of the Coorong became too salty for native plants and animals to survive

  • flows across the South Australian border fell to just 960 GL per year

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mitigation efforts

  • pipelines built to get water to Lower Lakes community in Adelaide and to sustain (barely) agricultural industries

  • Water transported to regional communities

  • The Independent Murray-Darling Basin Authority was formed to ensure water conservation is properly practiced and the murray-darling basin can be resilient to drought

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how long did it last

debated but usually said to be 2001-2009ish (omg did i single-handed solve the drought at 1 yo??? yeah that was me)

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Lakes

lakes Alexandrina and Albert reached their lowest point in a thousand years with the water level in Lake Alexandrina plunging to 1.1 metres below sea level in April 2009

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environmental impact (acid sulfate)

20,000 hectares of acid sulfate soils were exposed in the Lower Lakes region

  • Acidification of water bodies, wetlands, and estuaries can harm aquatic life and disrupt ecosystems.

  • The acid can leach toxic metals like aluminum, iron, and arsenic from the soil, contaminating groundwater and water bodies.

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cultural impact on First Nations Peoples

Aboriginal communities suffered the exposure of ancient burial grounds

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Demographic and socio-economic preparedness (compared with Mali)

less vulnerable to the negative effects of drought because of support from other parts of australia and enough money to buy water and build pipelines

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Probability and prediction of risk (compared w Mali)

increasing risk as climate change progresses