气候变化领域集成服务门户(CCPortal): Soil heat extremes can outpace air temperature extremes

CCPortal

DOI	10.1038/s41558-023-01812-3
	Soil heat extremes can outpace air temperature extremes
	Garcia-Garcia, Almudena; Cuesta-Valero, Francisco Jose; Miralles, Diego G.; Mahecha, Miguel D.; Quaas, Johannes; Reichstein, Markus; Zscheischler, Jakob; Peng, Jian
发表日期	2023
ISSN	1758-678X
EISSN	1758-6798
英文摘要	Quantifying changes in hot temperature extremes is key for developing adaptation strategies. Changes in hot extremes are often determined on the basis of air temperatures; however, hydrology and many biogeochemical processes are more sensitive to soil temperature. Here we show that soil hot extremes are increasing faster than air hot extremes by 0.7 & DEG;C per decade in intensity and twice as fast in frequency on average over Central Europe. Furthermore, we identify soil temperature as a key factor in the soil moisture-temperature feedback. During dry and warm conditions, the energy absorbed by the soil is used to warm the soil, increasing the release of sensible heat flux and surface air temperatures. This increase in surface air temperature leads to a higher atmospheric demand for water, increasing soil evaporation, which may further dry and warm the soil highlighting the contribution of soil moisture-temperature feedback to the evolution of hot extremes in a warming climate. Changes in air temperature are usually considered for quantifying changes in temperature extremes such as heatwaves. This study shows that the incidence of heat extremes in soils is increasing faster than air temperature in some regions, with implications for hydrological and biogeochemical processes.
英文关键词	SUMMER
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001069496700002
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/282491
作者单位	Helmholtz Association; Helmholtz Center for Environmental Research (UFZ); Leipzig University; Ghent University; Leipzig University; Max Planck Society; Helmholtz Association; Helmholtz Center for Environmental Research (UFZ)
推荐引用方式 GB/T 7714	Garcia-Garcia, Almudena,Cuesta-Valero, Francisco Jose,Miralles, Diego G.,et al. Soil heat extremes can outpace air temperature extremes[J],2023.
APA	Garcia-Garcia, Almudena.,Cuesta-Valero, Francisco Jose.,Miralles, Diego G..,Mahecha, Miguel D..,Quaas, Johannes.,...&Peng, Jian.(2023).Soil heat extremes can outpace air temperature extremes.Nature Climate Change.
MLA	Garcia-Garcia, Almudena,et al."Soil heat extremes can outpace air temperature extremes".Nature Climate Change (2023).