气候变化领域集成服务门户(CCPortal): Geomorphological conditions of the gas-emission crater and its dynamics in central yamal

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	Geomorphological conditions of the gas-emission crater and its dynamics in central yamal
	Kizyakov A.I.; Sonyushkin A.V.; Leibman M.O.; Zimin M.V.; Khomutov A.V.
发表日期	2015
ISSN	15607496
卷号	19 期号:2
英文摘要	This paper presents the characteristics of the relief within the area of crater formation in Central Yamal, based on the analysis of remote sensing data, including stereo-pair very high resolution data as well as field observations. Time interval of the crater formation was defined as late fall 2013. Data on the morphology of the studied area before and after the crater formation were obtained. The existence of the bulge with the base diameter 45-58 m and height of about 5-6 m in place of the crater was documented. Analysis of multi-temporal digital elevation models allowed calculating the volume of the crater and the parapet formed around it. The volume of discharged material is almost 6 times larger than the volume of material found in the parapet. The difference is due to a significant amount of ice that, according to the results of field observations, is exposed in the walls of the cylindrical portion of the crater, and, apparently, comprised a major part of bulge material that thawed after ejection. The rate of the crater increase in diameter due to melting of its ice walls and the rate of its filling with water over the summer period were determined.
英文关键词	Digital elevation model; Gas-emission crater; Ground ice; Remote-sensing data; Satellite stereo pair
学科领域	crater; digital elevation model; emission; frozen ground; geomorphology; remote sensing; satellite data; stereo image; Russian Federation; Yamal Peninsula; Yamalo-Nenets
语种	英语
scopus关键词	crater; digital elevation model; emission; frozen ground; geomorphology; remote sensing; satellite data; stereo image; Russian Federation; Yamal Peninsula; Yamalo-Nenets
来源期刊	Earth's Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119934
作者单位	Department of Geography, Lomonosov Moscow State University, Leninskie Gory, 1, Moscow, 119991, Russian Federation; ScanEx Research and Development Center, Moscow, Berezhkovskaya embank., 20/10, Moscow, 119021, Russian Federation; SB RAS, Earth Cryosphere Institute, P/O box 1230, Tyumen, 625000, Russian Federation; Tyumen State Oil and Gas University, Volodarskogo str., 38, Tyumen, 625000, Russian Federation
推荐引用方式 GB/T 7714	Kizyakov A.I.,Sonyushkin A.V.,Leibman M.O.,et al. Geomorphological conditions of the gas-emission crater and its dynamics in central yamal[J],2015,19(2).
APA	Kizyakov A.I.,Sonyushkin A.V.,Leibman M.O.,Zimin M.V.,&Khomutov A.V..(2015).Geomorphological conditions of the gas-emission crater and its dynamics in central yamal.Earth's Cryosphere,19(2).
MLA	Kizyakov A.I.,et al."Geomorphological conditions of the gas-emission crater and its dynamics in central yamal".Earth's Cryosphere 19.2(2015).