Fractional contribution of global warming and regional urbanization to intensifying regional heatwaves across Eurasia
نویسندگان
چکیده
Increasing frequency and intensity of heatwaves (HWs) in a warming climate exert catastrophic impacts on human society natural environment. However, spatiotemporal variations HW their driving factors still remain obscure, especially for changes over Eurasia, the region with largest population world. Here we provide systematic investigation Eurasia quantify contributions different anthropogenic to these changes. frequency, duration are observed most parts occurrence first event tends be earlier as well, Europe, East Asia, Central Southwest Mediterranean region. These intensified activities particularly stronger more widespread after 1990 s. The spatial pattern increasing trend is closely tied interdecadal sea surface temperature North Pacific. More intense hot airmass convection, atmospheric circulation obstruction enhanced Mongolian high hinders southward movement cold air wet exchange. Further analyses suggest that intensifying Eurasian tendency combined result both change activities. Overall, fractional warming, urbanization, standardized precipitation evaporation index, Atlantic Multi-decadal Oscillation HWs 30%, 25%, 21% 24%, respectively. It also suggested relative influential rate varies time differs areas.
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ژورنال
عنوان ژورنال: Climate Dynamics
سال: 2022
ISSN: ['0930-7575', '1432-0894']
DOI: https://doi.org/10.1007/s00382-021-06054-7