Uploaded March 2021 | Updated September 2026, 1 week ago
Australia's 2019/2020 hazard cascade. Drought increased the
likelihood of wildfires, which burned vegetation and raised the likelihood
of increased surface runoff, soil erosion and hillslope failures. When
heavy rain fell in early 2020, runoff from burned areas led to flooding and
entrained ash, soil, and organic matter, increasing sediment concentrations
in rivers and negatively impacting water quality.
Australia's 2019/2020 hazard cascade. Drought increased the
likelihood of wildfires, which burned vegetation and raised the likelihood
of increased surface runoff, soil erosion and hillslope failures. When
heavy rain fell in early 2020, runoff from burned areas led to flooding and
entrained ash, soil, and organic matter, increasing sediment concentrations
in rivers and negatively impacting water quality.










