气候变化领域集成服务门户(CCPortal): Soil freeze depth variability across Eurasia during 1850

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DOI	10.1007/s10584-019-02586-4
	Soil freeze depth variability across Eurasia during 1850–2100
	Peng X.; Zhang T.; Frauenfeld O.W.; Du R.; Wei Q.; Liang B.
发表日期	2020
ISSN	0165-0009
起始页码	531
结束页码	549
卷号	158 期号:2020-03-04
英文摘要	Soil freeze depth (SFD) is an important indicator of cryospheric and climate change. Changes in SFD have important effects on hydrology, the energy balance, carbon exchange, and ecosystem diversity. However, quantifying and predicting SFD at large scales remains a challenge due to sparse long-term observations. This study employs the Stefan solution combined with 16 of the coupled model inter-comparison project phase 5 (CMIP5) models over the historical period (1850–2005) and three representative concentration pathways (RCP 2.6, 4.5, and 8.5) for 2006–2100, the Climatic Research Unit dataset (1901–2013), and hundreds of soil temperature, air temperature, precipitation, and snow depth sites to analyze the spatiotemporal variability of SFD in Eurasia under historical and projected climate change. During 1850–2005, a statistically significant SFD decrease of 0.49 ± 0.04 cm/decade is observed. Spatially, the biggest decreases are generally in Siberia and on the Tibetan Plateau. There is a projected decrease in 2006–2100 SFD of 4.58 ± 0.26, 1.85 ± 0.21, and 0.45 ± 0.18 cm/decade for RCP 8.5, 4.5, 2.6, respectively. These variations in SFD provide key insights into spatiotemporal changes in climate, and facilitate improved understanding of variation in frozen ground across Eurasia. © 2019, Springer Nature B.V.
英文关键词	Climate change; CMIP5; Eurasia; Soil freeze depth
语种	英语
scopus关键词	Climate models; Soil mechanics; Soils; Climatic research; CMIP5; Ecosystem diversity; Eurasia; Historical periods; Long term observations; Spatio-temporal changes; Spatiotemporal variability; Climate change; climate change; climate modeling; CMIP; cryosphere; data set; freezing; frozen ground; long-term change; soil analysis; China; Qinghai-Xizang Plateau; Siberia
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147240
作者单位	Key Laboratory of Western China’s Environmental Systems(Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; Department of Geography, Texas A&M University, College Station, TX 77843-3147, United States
推荐引用方式 GB/T 7714	Peng X.,Zhang T.,Frauenfeld O.W.,等. Soil freeze depth variability across Eurasia during 1850–2100[J],2020,158(2020-03-04).
APA	Peng X.,Zhang T.,Frauenfeld O.W.,Du R.,Wei Q.,&Liang B..(2020).Soil freeze depth variability across Eurasia during 1850–2100.Climatic Change,158(2020-03-04).
MLA	Peng X.,et al."Soil freeze depth variability across Eurasia during 1850–2100".Climatic Change 158.2020-03-04(2020).