气候变化领域集成服务门户(CCPortal): The Greater Caucasus Glacier Inventory (Russia, Georgia and Azerbaijan)

CCPortal

DOI	10.5194/tc-12-81-2018
	The Greater Caucasus Glacier Inventory (Russia, Georgia and Azerbaijan)
	Tielidze L.G.; Wheate R.D.
发表日期	2018
ISSN	19940416
卷号	12 期号:1
英文摘要	There have been numerous studies of glaciers in the Greater Caucasus, but none that have generated a modern glacier database across the whole mountain range. Here, we present an updated and expanded glacier inventory at three time periods (1960, 1986, 2014) covering the entire Greater Caucasus. Large-scale topographic maps and satellite imagery (Corona, Landsat 5, Landsat 8 and ASTER) were used to conduct a remote-sensing survey of glacier change, and the 30 m resolution Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model (ASTER GDEM; 17 November 2011) was used to determine the aspect, slope and height distribution of glaciers. Glacier margins were mapped manually and reveal that in 1960 the mountains contained 2349 glaciers with a total glacier surface area of 1674.9 ± 70.4 km2. By 1986, glacier surface area had decreased to 1482.1 ± 64.4 km2 (2209 glaciers), and by 2014 to 1193.2 ± 54.0 km2 (2020 glaciers). This represents a 28.8 ± 4.4 % (481 ± 21.2 km2) or 0.53 % yr-1 reduction in total glacier surface area between 1960 and 2014 and an increase in the rate of area loss since 1986 (0.69 % yr-1) compared to 1960-1986 (0.44 % yr-1). Glacier mean size decreased from 0.70 km2 in 1960 to 0.66 km2 in 1986 and to 0.57 km2 in 2014. This new glacier inventory has been submitted to the Global Land Ice Measurements from Space (GLIMS) database and can be used as a basis data set for future studies. © 2018 Biological Society of Washington. All rights reserved.
学科领域	ASTER; data set; database; glacier; inventory; Landsat; satellite imagery; surface area; Azerbaijan; Caucasus; Georgia; Russian Federation; United States
语种	英语
scopus关键词	ASTER; data set; database; glacier; inventory; Landsat; satellite imagery; surface area; Azerbaijan; Caucasus; Georgia; Russian Federation; United States
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119242
作者单位	Department of Geomorphology, Vakhushti Bagrationi Institute of Geography, Ivane Javakhishvili Tbilisi State University, 6 Tamarashvili st., Tbilisi, 0177, Georgia; Natural Resources and Environmental Studies, University of Northern British Columbia, 3333 University Way, Prince George, BC V2N 4Z9, Canada; Department of Earth Sciences, Georgian National Academy of Sciences, 52 Rustaveli Ave., Tbilisi, 0108, Georgia
推荐引用方式 GB/T 7714	Tielidze L.G.,Wheate R.D.. The Greater Caucasus Glacier Inventory (Russia, Georgia and Azerbaijan)[J],2018,12(1).
APA	Tielidze L.G.,&Wheate R.D..(2018).The Greater Caucasus Glacier Inventory (Russia, Georgia and Azerbaijan).Cryosphere,12(1).
MLA	Tielidze L.G.,et al."The Greater Caucasus Glacier Inventory (Russia, Georgia and Azerbaijan)".Cryosphere 12.1(2018).