气候变化领域集成服务门户(CCPortal): Influences of Snow Cover on the Thermal Regimes of Xing'an Permafrost in Northeast China in 1960s-2010s

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DOI	10.1002/ppp.2223
	Influences of Snow Cover on the Thermal Regimes of Xing'an Permafrost in Northeast China in 1960s-2010s
	Wang, Hongwei; Jin, Huijun; Che, Tao; Li, Xiaoying; Dai, Liyun; Qi, Yuan; Huang, Chunlin; He, Ruixia; Zhang, Jinlong; Yang, Rui; Luo, Dongliang; Jin, Xiaoying
发表日期	2024
ISSN	1045-6740
EISSN	1099-1530
起始页码	35
结束页码	2
卷号	35 期号:2
英文摘要	The distributive characteristics of snow cover and their impacting mechanisms on ground thermal regimes in Northeast China remain evasive because of limited systematic studies. In this study, based on long-term ground-based observational data and auxiliary topographic data, geographically weighted regression kriging (GWRK) method and the temperature at the top of permafrost (TTOP) model were used to analyze the influences of snow cover duration (SCD) and average snow depth over the SCD (ASDSCD) on the thermal regimes of Xing'an permafrost in Northeast China in the 1960s-2010s. The results show a remarkable reduction of permafrost extent in Northeast China from the 1960s to 2010s, with an average reduction rate of 4.115 x 104 km2/decade. In permafrost regions, from the 1960s to 2010s, average SCD varied between 150 and 160 days, and the regional average of ASDSCD between 8 and 14 cm. Increases in ASDSCD led to a rise of TTOP. From the 1960s to 2010s, the regional average of ASDSCD increased by 3.53 cm, and that of TTOP by 2.02 degrees C. The research results can provide scientific basis and data support for evaluating the responses of permafrost and cold region ecosystems to climate change in Northeast China.
英文关键词	geographically weighted regression method; Northeast China; snow cover; temperature at the top of permafrost model; thermal regimes; Xing'an permafrost
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geology
WOS记录号	WOS:001188482500001
来源期刊	PERMAFROST AND PERIGLACIAL PROCESSES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295832
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; Northeast Forestry University - China; Northeast Forestry University - China; Chinese Academy of Sciences; Northeast Forestry University - China
推荐引用方式 GB/T 7714	Wang, Hongwei,Jin, Huijun,Che, Tao,et al. Influences of Snow Cover on the Thermal Regimes of Xing'an Permafrost in Northeast China in 1960s-2010s[J],2024,35(2).
APA	Wang, Hongwei.,Jin, Huijun.,Che, Tao.,Li, Xiaoying.,Dai, Liyun.,...&Jin, Xiaoying.(2024).Influences of Snow Cover on the Thermal Regimes of Xing'an Permafrost in Northeast China in 1960s-2010s.PERMAFROST AND PERIGLACIAL PROCESSES,35(2).
MLA	Wang, Hongwei,et al."Influences of Snow Cover on the Thermal Regimes of Xing'an Permafrost in Northeast China in 1960s-2010s".PERMAFROST AND PERIGLACIAL PROCESSES 35.2(2024).