期刊
NATURE CLIMATE CHANGE
卷 7, 期 12, 页码 885-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41558-017-0008-6
关键词
-
资金
- National Oceanic and Atmospheric Administration (NOAA), US Department of Commerce [NA14OAR4830101]
In 2014 and 2015, post-monsoon extremely severe cyclonic storms (ESCS)-defined by the WMO as tropical storms with lifetime maximum winds greater than 46 m s(-1)-were first observed over the Arabian Sea (ARB), causing widespread damage. However, it is unknown to what extent this abrupt increase in post-monsoon ESCSs can be linked to anthropogenic warming, natural variability, or stochastic behaviour. Here, using a suite of high-resolution global coupled model experiments that accurately simulate the climatological distribution of ESCSs, we show that anthropogenic forcing has likely increased the probability of late-season ECSCs occurring in the ARB since the preindustrial era. However, the specific timing of observed late-season ESCSs in 2014 and 2015 was likely due to stochastic processes. It is further shown that natural variability played a minimal role in the observed increase of ESCSs. Thus, continued anthropogenic forcing will further amplify the risk of cyclones in the ARB, with corresponding socio-economic implications.
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