Short Wave Australia's Next Danger: Mudslides
Feb 24, 2020
In this engaging discussion, NPR science reporter Rebecca Hersher delves into the urgent issue of mudslides in Australia, where wildfires have left hillsides vulnerable. She shares insights on how scientists use innovative tools like satellite imaging and helicopter surveys to assess soil stability. The conversation highlights the risks of debris flows following intense rainfall and the critical need for accurate risk mapping to keep communities safe. Hersher's firsthand experiences in the field paint a vivid picture of the challenges and science behind this environmental crisis.
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Mudslides After Fires
- Australian fires increase mudslide risks due to charred vegetation and altered soil.
- The soil's reduced water absorption leads to runoff and mudslides, previously unpredictable.
Modern Soil Science
- Soil scientists utilize advanced technologies like satellite imagery and helicopters.
- They study vast areas affected by fires, like the 8 million hectares burned in Australia.
Charlie's Work
- Charlie Showers, a geologist in Victoria, Australia, studies a 100,000-hectare burned area.
- He uses daily updated satellite maps to track active fires and assess the severity of burn damage.