干旱区生态环境知识资源中心(Arid): Interpretation of Glaciogenic Complexes From Satellite Images of the Mongun-Taiga Mountain Range

Arid

DOI	10.1134/S1875372818010092
	Interpretation of Glaciogenic Complexes From Satellite Images of the Mongun-Taiga Mountain Range
	Ganyushkin, D. A.; Kunaeva, E. P.; Chistyakov, K. V.; Volkov, I. V.
通讯作者	Ganyushkin, DA
来源期刊	GEOGRAPHY AND NATURAL RESOURCES
ISSN	1875-3728
EISSN	1875-371X
出版年	2018
卷号	39 期号:1 页码:63-72
英文摘要	This investigation is concerned with the problem of recognition of glacial landforms in arid mountainous areas of Asia using satellite imagery. We examine the territory of the Mongun-Taiga mountain range located at the interface of the Russian Altai, Sayan and Mongolian Altai mountains which has been studied for many years by geographers of St. Petersburg State University. The mountain range is home to modern glaciers totaling about 20 km in area, and its climate aridity is favorable for the preservation of a large body of evidence of ancient glaciation. The theoretical basis for this effort was provided by the idea of GC, i.e. natural complexes, the morphology and structure of which is formed by modern and ancient glaciations. Using the morphological differences we identified three groups of glaciogenic complexes and assigned their formation time to MIS 4, MIS 2, and to the Late Holocene. Results from comparing data of glacio-geomorphological and paleogeographical studies on the territory of the Mongun-Taiga mountain range with corresponding satellite images were used to develop interpretation standards for different groups of GC, forming the basis for compiling the map of GC of the second and third order for the entire mountain range. Cartometric measurements were used in obtaining the main characteristics of the glaciers of the Mogun-Taiga for ten different time spans. It is found that during the MIS 4 maximum the glaciers advanced to the piedmonts, and their area exceeded the present-day area by more than a factor of 25, with the firn line depression of about 800 m. The largest areas were occupied by glaciers of southward aspects, which is accounted for by a predominance of north-westward moisture-bearing glacial streams at that time. The aspect asymmetry of glaciation persisted during the MIS 2 maximum but it had a valley character. It is established that in the Little Ice Age the area of the glaciers exceeded the present-day area by a factor of 2.4, with the firn line depression of 20 m.
英文关键词	arid mountains interpretation satellite imagery glacial landforms paleoreconstructions of glaciation ancient glaciation
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000429963100009
WOS类目	Geography
WOS研究方向	Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332755
作者单位	[Ganyushkin, D. A.; Chistyakov, K. V.; Volkov, I. V.] St Petersburg State Univ, St Petersburg 199034, Russia; [Kunaeva, E. P.] AF Mozhaiskii Mil Space Acad, St Petersburg 197198, Russia
推荐引用方式 GB/T 7714	Ganyushkin, D. A.,Kunaeva, E. P.,Chistyakov, K. V.,et al. Interpretation of Glaciogenic Complexes From Satellite Images of the Mongun-Taiga Mountain Range[J],2018,39(1):63-72.
APA	Ganyushkin, D. A.,Kunaeva, E. P.,Chistyakov, K. V.,&Volkov, I. V..(2018).Interpretation of Glaciogenic Complexes From Satellite Images of the Mongun-Taiga Mountain Range.GEOGRAPHY AND NATURAL RESOURCES,39(1),63-72.
MLA	Ganyushkin, D. A.,et al."Interpretation of Glaciogenic Complexes From Satellite Images of the Mongun-Taiga Mountain Range".GEOGRAPHY AND NATURAL RESOURCES 39.1(2018):63-72.