气候变化领域集成服务门户(CCPortal): Permafrost distribution and temperature in the Elkon Horst, Russia

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DOI	10.3724/SP.J.1226.2021.20027
	Permafrost distribution and temperature in the Elkon Horst, Russia
	Zhelezniak, Mikhail; Wu, QingBai; Kirillin, Anatolii; Wen, Zhi; Zhirkov, Aleksandr; Zhizhin, Vladimir
发表日期	2021
ISSN	1674-3822
起始页码	107
结束页码	122
卷号	13 期号:2
英文摘要	The Elkon Horst is a geological structure that consists of heterogeneous strata with highly variable geocryological and temperature conditions. Gaining accurate knowledge of permafrost distribution patterns within this structure is of both scientific and practical importance. In mountainous terrain, the ground thermal regime is controlled by both surface and subsurface conditions. Surface conditions include snow cover characteristics, the presence or absence of vegetation, vegetation density, etc.. In contrast, subsurface conditions involve rock lithology or petrography, density, quantity and depth of fissures, groundwater, etc.. This article examines ground thermal regimes in various geomorphological settings based on temperature measurement data from geotechnical boreholes. The occurrence and extent of permafrost were evaluated for the entire horst area using direct and indirect methods. The maximum permafrost thickness measured in the Elkon Horst is 330 m, and the estimated maximum is 450 m at higher elevations. Thermophysical properties were determined for the major rock types, and the geothermal heat flux was estimated for the study area. The thermal conductivities were found to vary from 1.47 to 4.20 W/(m.K), and the dry bulk densities to range between 2,236 kg/m(3) and 3,235 kg/m(3). The average geothermal heat flux was estimated to be 44 mW/m(2).
英文关键词	permafrost; ground temperature; geothermal heat flux; thermal conductivity; horst
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS关键词	THERMAL-CONDUCTIVITY ; ACTIVE LAYER ; SNOW COVER ; EXAMPLE
WOS记录号	WOS:000651440300005
来源期刊	SCIENCES IN COLD AND ARID REGIONS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240231
作者单位	[Zhelezniak, Mikhail; Kirillin, Anatolii; Zhirkov, Aleksandr; Zhizhin, Vladimir] Melnikov Permafrost Inst SB RAS, Yakutsk 677000, Russia; [Wu, QingBai; Wen, Zhi] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhelezniak, Mikhail,Wu, QingBai,Kirillin, Anatolii,et al. Permafrost distribution and temperature in the Elkon Horst, Russia[J]. 中国科学院西北生态环境资源研究院,2021,13(2).
APA	Zhelezniak, Mikhail,Wu, QingBai,Kirillin, Anatolii,Wen, Zhi,Zhirkov, Aleksandr,&Zhizhin, Vladimir.(2021).Permafrost distribution and temperature in the Elkon Horst, Russia.SCIENCES IN COLD AND ARID REGIONS,13(2).
MLA	Zhelezniak, Mikhail,et al."Permafrost distribution and temperature in the Elkon Horst, Russia".SCIENCES IN COLD AND ARID REGIONS 13.2(2021).