Reversed asymmetric warming of sub-diurnal temperature over land during recent decades

Zhong, Ziqian,1995Beijing Normal University,Chalmers tekniska högskola,Chalmers University of Technology (author)

In the latter half of the twentieth century, a significant climate phenomenon “diurnal asymmetric warming” emerged, wherein global land surface temperatures increased more rapidly during the night than during the day. However, recent episodes of global brightening and regional droughts and heatwaves have brought notable alterations to this asymmetric warming trend. Here, we re-evaluate sub-diurnal temperature patterns, revealing a substantial increase in the warming rates of daily maximum temperatures (Tmax), while daily minimum temperatures have remained relatively stable. This shift has resulted in a reversal of the diurnal warming trend, expanding the diurnal temperature range over recent decades. The intensified Tmax warming is attributed to a widespread reduction in cloud cover, which has led to increased solar irradiance at the surface. Our findings underscore the urgent need for enhanced scrutiny of recent temperature trends and their implications for the wider earth system.

He, BinBeijing Normal University (author)
Chen, Hans,1988Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)hansche (author)
Chen, Deliang,1961Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,University of Gothenburg(Swepub:cth)xchede (author)
Zhou, TianjunChinese Academy of Sciences (author)
Dong, WenjieSun Yat-Sen University (author)
Xiao, CundeBeijing Normal University (author)
Xie, Shang pingUniversity of California at San Diego (UCSD),Beijing University of Technology (author)
Song, XiangzhouHohai University (author)
Guo, LanlanBeijing Normal University (author)
Ding, RuiqiangBeijing Normal University (author)
Zhang, LixiaChinese Academy of Sciences (author)
Huang, Ling (author)
Yuan, WenpingSun Yat-Sen University (author)
Hao, XingmingChinese Academy of Sciences (author)
Ji, DuoyingBeijing Normal University (author)
Zhao, XiangBeijing Normal University (author)
Beijing Normal UniversityChalmers tekniska högskola (creator_code:org_t)

By the author/editor: Zhong, Ziqian, 1 ...; He, Bin; Chen, Hans, 1988; Chen, Deliang, 1 ...; Zhou, Tianjun; Dong, Wenjie; show more...; Xiao, Cunde; Xie, Shang ping; Song, Xiangzhou; Guo, Lanlan; Ding, Ruiqiang; Zhang, Lixia; Huang, Ling; Yuan, Wenping; Hao, Xingming; Ji, Duoying; Zhao, Xiang; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Climate Research

By the university: University of Gothenburg; Chalmers University of Technology

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