论文标题

在气候变化下,温度极端的速度转移

Shifting velocity of temperature extremes under climate change

论文作者

Rey, Joan, Rohat, Guillaume, Perroud, Marjorie, Goyette, Stéphane, Kasparian, Jérôme

论文摘要

气候条件的快速变化威胁着社会经济和生态系统,因为这些系统可能无法适应或以与全球变暖的速度相同的速度。特别是,天气和极端气候的增加会导致对人类和自然系统的压力增加,并且倾向于严重不良反应。我们依靠欧洲 - 核心模拟,并专注于屏幕级平均温度(T2M)。我们将冷和热极端的转移速度与相关的中心趋势(即算术平均值或中位数)进行比较。我们定义了相对于T2M分布的极端,随着时间的流逝在1951 - 2100年期间随着时间的流逝而演变。我们发现,与中心趋势相比,温度极端的速度极端变化。因此,随着分布的尾巴随着中心趋势的增加而增加,T2M概率分布大多转移。但是,在特定地区和温暖日的聚类中发生了例外,这比本研究中研究的所有其他极端变化慢。

Rapid changes in climatic conditions threaten both socioeconomic and ecological systems, as these might not be able to adapt or to migrate at the same pace as that of global warming. In particular, an increase of weather and climate extremes can lead to increased stress on human and natural systems, and a tendency for serious adverse effects. We rely on the EURO-CORDEX simulations and focus on the the screen-level daily mean temperature (T2m). We compare the shifting velocities of the cold and hot extremes with these of the associated central trends, i.e., the arithmetical mean or median. We define the extremes relative to the T2m distribution as it evolves with time over the period of 1951--2100. We find that temperature extremes shift at a similar velocity compared to that of the central trends. Accordingly, the T2m probability distribution shifts mostly as a whole, as the tails of the distribution increase together with the central trends. Exceptions occur however in specific regions and for the clustering of warm days, which shifts slower than all other extremes investigated in this study.

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