气候变化领域集成服务门户(CCPortal): Dendrochronologic reconstruction of gas-inflated mound formation at the yamal crater location

CCPortal

DOI	10.21782/KZ1560-7496-2017-5(107-119)
	Dendrochronologic reconstruction of gas-inflated mound formation at the yamal crater location
	Arefyev S.P.; Khomutov A.V.; Ermokhina K.A.; Leibman M.O.
发表日期	2017
ISSN	15607496
卷号	21 期号:5
英文摘要	Analyzed are tree-ring width chronologies out of shrubs from the area of the crater formed at the Central Yamal as a result of gas emission in October 2013. Crater formed in place of a mound, probably formed by gassing. We collected samples from willow shrubs on the ejected blocks of soil, mound slope in situ, and the background shrub tundra. Based on the location of the blocks and their vegetation cover, we reconstructed the original block position on the top and slope of the initial mound. Further analysis of tree-ring width chronologies of the willows has demonstrated that formation of the mound had lasted for at least 66 years (most likely from the end of the 1940s), during which the mound had increased in both diameter and height. We estimated the growth rate of the mound height in 1976-1985 at 8 cm per year. It has been for the fi rst time for the Tundra zone that in some loci the relationship has been observed between willow growth and air temperature of not only July, but also August. Thus, such relationship can be used as indication of similar mounds. Noted is a recurring inconsistency between tree-ring width of willows on the mound and on the background tundra. Such treering width dissonances have a 6-year periodicity, connected to the planetary tidal eff ect; identifi ed are Wolf cycles (10.8 years) and Hale cycles (20-22 years) as well. Gas emission fell into the year of dendrochronological dissonance at the peak of the solar cycle. Gas-emission crater, gas-infl ated mound, tundra shrubs, tree-ring width chronologies, natural cycles. © 2018 Academic Publishing House Geo. All rights reserved.
学科领域	air temperature; dendrochronology; emission inventory; growth rate; periodicity; reconstruction; solar cycle; tundra; Russian Federation; Yamal Peninsula; Yamalo-Nenets; Salix
语种	英语
scopus关键词	air temperature; dendrochronology; emission inventory; growth rate; periodicity; reconstruction; solar cycle; tundra; Russian Federation; Yamal Peninsula; Yamalo-Nenets; Salix
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/119351
作者单位	Institute of Northern Development, Tyumen Scientifi C Centre SB RAS, P/O box 2774, Tyumen, 625003, Russian Federation; Tyumen State University, 6, Volodarskogo str, Tyumen, 625003, Russian Federation; Earth Cryosphere Institute, Tyumen Scientifi C Centre SB RAS, 86, Malygina str, Tyumen, 625026, Russian Federation
推荐引用方式 GB/T 7714	Arefyev S.P.,Khomutov A.V.,Ermokhina K.A.,et al. Dendrochronologic reconstruction of gas-inflated mound formation at the yamal crater location[J],2017,21(5).
APA	Arefyev S.P.,Khomutov A.V.,Ermokhina K.A.,&Leibman M.O..(2017).Dendrochronologic reconstruction of gas-inflated mound formation at the yamal crater location.Earth's Cryosphere,21(5).
MLA	Arefyev S.P.,et al."Dendrochronologic reconstruction of gas-inflated mound formation at the yamal crater location".Earth's Cryosphere 21.5(2017).