气候变化领域集成服务门户(CCPortal): Climate change now detectable from any single day of weather at global scale

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DOI	10.1038/s41558-019-0666-7
	Climate change now detectable from any single day of weather at global scale
	Sippel S.; Meinshausen N.; Fischer E.M.; Székely E.; Knutti R.
发表日期	2020
ISSN	1758678X
卷号	10 期号:1
英文摘要	For generations, climate scientists have educated the public that ‘weather is not climate’, and climate change has been framed as the change in the distribution of weather that slowly emerges from large variability over decades1–7. However, weather when considered globally is now in uncharted territory. Here we show that on the basis of a single day of globally observed temperature and moisture, we detect the fingerprint of externally driven climate change, and conclude that Earth as a whole is warming. Our detection approach invokes statistical learning and climate model simulations to encapsulate the relationship between spatial patterns of daily temperature and humidity, and key climate change metrics such as annual global mean temperature or Earth’s energy imbalance. Observations are projected onto this relationship to detect climate change. The fingerprint of climate change is detected from any single day in the observed global record since early 2012, and since 1999 on the basis of a year of data. Detection is robust even when ignoring the long-term global warming trend. This complements traditional climate change detection, but also opens broader perspectives for the communication of regional weather events, modifying the climate change narrative: while changes in weather locally are emerging over decades, global climate change is now detected instantaneously. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124249
作者单位	Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland; Seminar for Statistics, ETH Zurich, Zurich, Switzerland; Norwegian Institute of Bioeconomy Research, As, Norway; Swiss Data Science Center, ETH Zurich and EPFL, Lausanne, Switzerland
推荐引用方式 GB/T 7714	Sippel S.,Meinshausen N.,Fischer E.M.,et al. Climate change now detectable from any single day of weather at global scale[J],2020,10(1).
APA	Sippel S.,Meinshausen N.,Fischer E.M.,Székely E.,&Knutti R..(2020).Climate change now detectable from any single day of weather at global scale.Nature Climate Change,10(1).
MLA	Sippel S.,et al."Climate change now detectable from any single day of weather at global scale".Nature Climate Change 10.1(2020).