DOI: 10.5194/tc-10-713-2016
Scopus记录号: 2-s2.0-84962852708
论文题名: Glacier change over the last century, Caucasus Mountains, Georgia, observed from old topographical maps, Landsat and ASTER satellite imagery
作者: Tielidze L ; G
刊名: Cryosphere
ISSN: 19940416
出版年: 2016
卷: 10, 期: 2 起始页码: 713
结束页码: 725
语种: 英语
英文关键词: ASTER
; glacier dynamics
; glacier retreat
; Landsat
; satellite imagery
; topographic mapping
; Caucasus
; Georgia
; United States
英文摘要: Changes in the area and number of glaciers in the Georgian Caucasus Mountains were examined over the last century, by comparing recent Landsat and ASTER images (2014) with older topographical maps (1911, 1960) along with middle and high mountain meteorological stations data. Total glacier area decreased by 8.1±1.8% (0.2±0.04%yr-1) or by 49.9±10.6 km2 from 613.6±9.8 km2 to 563.7±11.3 km2 during 1911-1960, while the number of glaciers increased from 515 to 786. During 1960-2014, the total ice area decreased by 36.9±2.2%(0.7±0.04%yr-1) or by 207.9±9.8 km2 from 563.7±11.3 km2 to 355.8±8.3 km2, while glacier numbers decreased from 786 to 637. In total, the area of Georgia glaciers reduced by 42.0±2.0% (0.4±0.02%yr-1) between 1911 and 2014. The eastern Caucasus section had the highest retreat rate of 67.3±2.0% (0.7±0.02%yr-1) over this period, while the central part of Georgian Caucasus had the lowest, 34.6±1.8% (0.3±0.01%yr-1), with the western Caucasus intermediate at 42.8±2.7% (0.4±0.03%yr-1). © Author(s) 2016. CC Attribution 3.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75164
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: Department of Geomorphology, Vakhushti Bagrationi Institute of Geography, Javakhishvili Tbilisi State University, 6 Tamarashvili st., Tbilisi, Georgia
Recommended Citation:
Tielidze L,G. Glacier change over the last century, Caucasus Mountains, Georgia, observed from old topographical maps, Landsat and ASTER satellite imagery[J]. Cryosphere,2016-01-01,10(2)