In media articles about unprecedented flooding, you'll often come across the statement that for every 1°C of warming, the atmosphere can hold about 7% more moisture.
Supercharged thunderstorms: Have we underestimated how climate change drives extreme rain and floods?about unprecedented flooding, you'll often come across the statement that for every 1°C of warming, the atmosphere can hold about 7% more moisture.
This increase is particularly clear in short-duration extreme rains, such as those caused by thunderstorms.But that doesn't explain everything. There's something else going on. Condensation produces heat. So as water vapor turns into droplets, more heat becomes available, and hot air rises by convection. In thunderstorms, more heat fuels stronger convection, where warm, moisture-laden air is driven up high.
There's now a concerted effort underway to perform more model simulations at very fine scales, so we can improve the modeling of convection.The evidence for supercharged thunderstorm rainfall has grown in recent years.
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