DOI: 10.1007/s11069-021-04708-7
论文题名: Geospatially analysing the dynamics of the Khurdopin Glacier surge using multispectral and temporal remote sensing and ground observations
作者: Imran M. ; Ahmad U.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 108, 期: 1 起始页码: 847
结束页码: 866
语种: 英语
中文关键词: Climate change
; GIS
; Glacier advancement
; NDWI
; NSDI
; Time-lapse image analyses
英文摘要: Karakorum glaciers are well known for the advancement and the formation of new glacial lakes due to accelerated climate warming. Its Shimshal valley is profoundly affected by glacier surges in the last couple of decades. Khurdopin glacier is one of the highly surging glaciers in the Karakorum region. Its continuous surge since the nineteenth century is blocking the Shimshal River and creating new lakes. Our objective is to investigate the Khurdopin glacier surge from 1999 to 2017. With this, we aim to identify possible climate and topographic controls on the glacier surge behaviour. We used Landsat 4–5, 7 and 8 satellite bands and ground observations to estimate the glacier retreat and new land cover types from the glacier surge. Our results show that the Khurdopin glacier surges every 20 years. We observed the first surge of 0.69 Km2 in 2000 and the second surge of 0.63 Km2 in 2017. Both events blocked the Shimshal River. We observed an increase of 1–4 °C in the glacier minimum and maximum winter temperatures. Moreover, we observed snowfall variations in the accumulation zone in the steep glacier slope with a north slope-aspect. The 64% of the glacier aspect is north that causes an increase in ice mass in the accumulation zone by receiving more snowfall in the winter season. The study output, combined with earlier findings, can further predict a surge event in the future. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169088
Appears in Collections: 气候变化与战略
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作者单位: Institute of Geoinformation & Earth Observation (IGEO), PMAS Arid Agriculture University, Rawalpindi, Pakistan
Recommended Citation:
Imran M.,Ahmad U.. Geospatially analysing the dynamics of the Khurdopin Glacier surge using multispectral and temporal remote sensing and ground observations[J]. Natural Hazards,2021-01-01,108(1)