Geospatially analysing the dynamics of the Khurdopin Glacier surge using multispectral and temporal remote sensing and ground observations

Imran, Muhammad; Ahmad, Umair

doi:10.1007/s11069-021-04708-7

Cited by 6 publications

(8 citation statements)

References 36 publications

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“…More recently, glacier surges have been documented in understudied regions of HMA such as the Tibetan Plateau (King et al, 2021;Xu et al, 2021;Zhu et al, 2021) and Western Kunlun Shan Furuya, 2013, 2015;Chudley and Willis, 2019;Muhammad and Tian, 2020). Many of these studies have focused on the modern satellite era and highlighted the non-uniform distribution of surge-type glaciers in HMA, giving a more accurate representation of the prevalence of surge-type glaciers compared to ground-based efforts (Dolgoushin and Osipova, 1975;Kotlyakov et al, 2008;Imran and Ahmad, 2021). The only existing inventory of surge-type glaciers covering HMA in its entirety originates from the study of Sevestre and Benn (2015).…”

Section: Introductionmentioning

confidence: 99%

A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach

Guillet

King

et al. 2022

The Cryosphere

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Abstract. Knowledge about the occurrence and characteristics of surge-type glaciers is crucial due to the impact of surging on glacier melt and glacier-related hazards. One of the super-clusters of surge-type glaciers is High Mountain Asia (HMA). However, no consistent region-wide inventory of surge-type glaciers in HMA exists. We present a regionally resolved inventory of surge-type glaciers based on their behaviour across High Mountain Asia between 2000 and 2018. We identify surge-type behaviour from surface velocity, elevation and feature change patterns using a multi-factor remote sensing approach that combines yearly ITS_LIVE velocity data, DEM differences and very-high-resolution imagery (Bing Maps, Google Earth). Out of the ≈95 000 glaciers in HMA, we identified 666 that show diagnostic surge-type glacier behaviour between 2000 and 2018, which are mainly found in the Karakoram (223) and the Pamir regions (223). The total area covered by the 666 surge-type glaciers represents 19.5 % of the glacierized area in Randolph Glacier Inventory (RGI) V6.0 polygons in HMA. Only 68 glaciers were already identified as “surge type” in the RGI V6.0. We further validate 107 glaciers previously labelled as “probably surge type” and newly identify 491 glaciers, not previously reported in other inventories covering HMA. We finally discuss the possibility of self-organized criticality in glacier surges. Across all regions of HMA, the surge-affected area within glacier complexes displays a significant power law dependency with glacier length.

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Section: Introductionmentioning

confidence: 99%

A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach

Guillet

King

et al. 2022

The Cryosphere

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show abstract

“…documented in understudied regions of HMA such as the Tibetan Plateau (King et al, 2021;Xu et al, 2021;Zhu et al, 2021) and Western Kunlun Shan Furuya, 2013, 2015;Chudley and Willis, 2019;Muhammad and Tian, 2020). Many of these studies have focused on the modern satellite era and highlighted the non-uniform distribution surge-type glaciers in HMA, giving a more accurate representation of the prevalence of surge-type glaciers compared to ground based efforts (Kotlyakov et al, 2008;Imran and Ahmad, 2021). Yet, no HMA-wide inventory of surge-type glaciers exists.…”

mentioning

confidence: 99%

A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach

Guillet

King

et al. 2021

Preprint

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Abstract. Knowledge about the occurrence and characteristics of surge-type glaciers is crucial due to the impact of surging on glacier melt and glacier related hazards. One of the "super-clusters" of surge-type glaciers is the mountains of Asia. However, no consistent region-wide inventory of surge-type glaciers in High Mountain Asia exists. We present a regionally resolved inventory of surge-type glaciers based on their behaviour across High Mountain Asia between 2000 and 2018. We identify surge-type behaviour from surface velocity, elevation and feature change patterns using a multi-factor remote sensing approach that combines yearly ITS_LIVE velocity data, DEM differences and very-high resolution imagery (Bing Maps, Google Earth). Out of the ≈ 95000 glaciers in HMA, we identified 666 that show diagnostic surge-type glacier behaviour between 2000 and 2018, which are mainly found in the Karakoram (223) and the Pamir regions (223). The total area covered by the 666 surge-type glaciers represents 19.5 % of the glacierized area in Randolph Glacier Inventory (RGI) V6.0 polygons in HMA. Across all regions of HMA, the surge-affected area within glacier complexes displays a significant power law dependency with glacier length. We validate 107 previously identified glaciers as surge-type and newly identify 491 glaciers. We finally discuss the possibility of self-organized criticality in glacier surges.

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“…The third-largest ice reserve outside the polar regions is made through the largest mountain glacier chain (Hindu-Kush, Karakoram, and Himalaya: HKH) which is the source of water for 1.3 billion people (20% world's population) in the HKH region [1,2] however, global warming has had a substantial impact on glaciers in the region. In the last two decades, glaciers in the Himalayan region retreated extensively [3], although it is still unclear which climatic variable is playing a significant role in glacier retreat.…”

Section: Introductionmentioning

confidence: 99%

“…The authors also concluded that debris-free glaciers are more prone to climate change compared to debris-covered glaciers. Additionally, Imran and Ahmad (2021) [1] concluded that the Khurdopin glacier surges every 20 years, and 0.69 and 0.63 km 2 surges were observed in 2000 and 2017, respectively. The authors also observed the 1-4 • C increase in minimum and maximum winter temperature.…”

Section: Introductionmentioning

confidence: 99%

Impact of Climate Change on Spatio-Temporal Distribution of Glaciers in Western Karakoram Region since 1990: A Case Study of Central Karakoram National Park

Moazzam

Bae

Lee

2022

Water

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Glaciers in the Upper Indus Basin (UIB) in Pakistan are the major source of water, irrigation, and power production for downstream regions. Global warming has induced a substantial impact on these glaciers. In the present study, Landsat images were utilized to evaluate the glaciers for the period from 1990–2020 in the Central Karakoram National Park (CKNP) region to further correlate with climate parameters. The results reveal that glaciers are retreating and the highest (2.33 km2) and lowest (0.18 km2) recession rates were observed for Biafo and Khurdopin glaciers, respectively. However, a minor advancement has also been observed for the period from 1990–2001. More than 80% of glacier recession was recorded between 2009–2020 because mean summer temperature increased at both Skardu and Gilgit meteorological stations, while precipitation decreased at both stations from 2005–2020. The increase in mean summer temperature and decrease in winter precipitation resulted in glacial retreat, which will lead to water scarcity in the future as well as affect the agriculture sector and hydropower production in downstream areas of the Indus River basin.

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Geospatially analysing the dynamics of the Khurdopin Glacier surge using multispectral and temporal remote sensing and ground observations

Cited by 6 publications

References 36 publications

A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach

A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach

A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach

Impact of Climate Change on Spatio-Temporal Distribution of Glaciers in Western Karakoram Region since 1990: A Case Study of Central Karakoram National Park

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