Due to global warming, clouds are increasingly forming in the tropics. These dissolve more slowly and provide more local precipitation. As a result, the frequency of extreme cloudbursts in hot, humid areas is increasing.
At the same time, dry areas are expanding because they have no water, scientists Caroline Muller and Jiawei Bao from the Institute of Science and Technology in Klosterneuburg (Lower Austria) explain in the journal ‘Science Advances’.
The researchers predicted expected precipitation at higher temperatures in the tropics using a climate model that examines regions with high spatial accuracy. “We analyzed the data at a resolution of only five kilometers, which was very computationally intensive,” Jiawei Bao said in an ISTA release.
Older generations of climate models, on the other hand, use blocks with a horizontal length of 100 kilometers. “The model with a much finer resolution showed that in a warmer climate, extreme precipitation in the tropics increases more than theoretically expected, because the clouds are more clustered.”
Source: Krone
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