Interdecadal Variations of the Temporal and Spatial Distribution of Summer Extreme Heat in China

Zang, Naihui; Zhao, Junhu; Yan, Pengcheng; Feng, Guolin

doi:10.1080/07055900.2019.1692189

Cited by 2 publications

(3 citation statements)

References 28 publications

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“…The frequency of PEHEs that occurred in the 2010s reached the maximum. The interdecadal variations in PEHE frequency in eastern China are consistent with those in EHE frequency (Wang et al 2013;Zang et al 2019). The decadal trends of short-term PEHE frequency in the YRV and SC are the same as those in NC and HHV.…”

Section: The Interdecadal Variations Of Pehessupporting

confidence: 66%

“…Previous studies have shown that there are apparent early onset phenomena of EHEs in eastern China, especially in the past 10 years, and the range and intensity of EH days in May have increased signi cantly (Zang et al 2019;LU et al 2020, Wang et al 2021). Therefore, this paper analyses the average frequency of EHEs per station in four subregions from May to September since 1961 (Fig.…”

Section: Methodsmentioning

confidence: 98%

“…June-August is the main season for PEHEs, but research shows that PEHEs in other months also have a signi cant increasing trend. Our previous study found that EHEs in eastern China show obvious intraseasonal characteristics (Zang et al 2019). The EHEs mainly occur in the Huanghuai region (the area between the lower Yellow River and the Huai River) in June and primarily occur in the Jiangnan to Jianghuai region from July to August.…”

Section: Introductionmentioning

confidence: 99%

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Interdecadal variations of persistent extreme heat events in eastern China under global warming

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Zhao

Yan

et al. 2021

Theor Appl Climatol

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Persistent extreme heat events (PEHEs) exert a more negative impact on society, including agriculture, plant phenology, power production and human health, compared to general EHEs. The temporal and spatial characteristics of summer PEHEs in eastern China were analysed based on a daily maximum temperature dataset from 759 stations over the period of 1961-2018. The results show the following: Persistent distributions of PEHEs show that they are characterized by an exponential decay with a drop in the decay rate. In terms of spatial distribution, there is an apparent regional difference in the duration of PEHEs. North China is dominated by multi-frequency and short-duration EHEs, while South China is the opposite. PEHEs in North China and the Huanghuai region mainly occur in June-July but mostly in July and August in South China. Strongly responding to global warming, the frequency and duration of PEHEs in North China have increased since the 1990s. However, the frequency of PEHEs in North China and the Huanghuai region has shown opposite trends in June-July since the beginning of the 21st century.Affected by the atmospheric circulations, the regional differences in PEHE frequency are also apparent. Since the beginning of the 21st century, the PEHEs in North China and the Huanghuai area have shown an increasing trend in August. The short-term PEHEs in the middle and lower reaches of the Yangtze River and South China increased rapidly in the 2000s, while long-term PEHEs increased in the 2010s. This study implies that attention should be paid to not only the frequency of EH days but also to the persistence of EHE which is a key characteristic of damaging EH.