Australia; International; NSW
A warmer climate means a decrease in snow falling in catchment areas, and that can have complex impacts on rivers and streams when the snow melts, according to Australian and international research. The researchers studied over 3,000 snow-affected catchments in the Northern Hemisphere and found that declining snowfalls have different impacts depending on whether they occur in snow-rich catchments or less snowy ones. In snow-rich catchments, declining snowfalls could lead to earlier streamflows and an increase in the frequency of spring floods, while in less snowy catchments, the declining snowfall delays streamflows and could lead to fewer spring floods.
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