China News Service, Beijing, April 13 (Reporter Sun Zifa) Springer Nature's academic journal "Nature-Communications" recently published a climate change research paper that believes that compared with pre-industrial levels, human-induced climate change has caused The 2020 Atlantic hurricane season saw up to a 10% increase in hourly rainfall.
The 2020 hurricane season was one of the most active on record, with 30 named storms, the paper said.
Human activities continue to increase greenhouse gases in the atmosphere, and past research has shown that the global average sea surface temperature will increase by more than 1°C in 2020 compared to pre-industrial levels.
It is thought that increased sea surface temperature may affect storm intensity and occurrence, but it is difficult to elucidate the various conflicting climatic effects on storm parameters.
Corresponding author of the paper, Stony Brook University (Kevin Reed) Kevin Reed and colleagues modeled the impact of anthropogenic climate change on sea surface temperature and found that in 2020, sea surface temperature across the Atlantic increased by 0.4–0.9°C.
They then used a hindcast (as opposed to forecast) technique to show how much of the extreme rainfall in the 2020 North Atlantic hurricane season was due to human-made sea temperature increases.
They found that the extreme 3-hour storm rainfall rate (3-hour rainfall) and extreme 3-day cumulative rainfall (3-day rainfall) at the tropical storm scale, respectively, increased compared to the pre-industrial revolution (1850) situation. 10% and 5%.
Their study also showed that human factors contributed 11% and 8% of the preceding two items, respectively, to hurricane-level storms.
According to the authors of the paper, these findings serve as a reminder that hurricane rainfall, which has a direct impact on coastal communities, has a human-caused origin.
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