Proglacial landform assemblage in a rapidly retreating cirque glacier due to temperature increase since 1970, Fuegian Andes, Argentina

Martin, C.; Ponce, Juan Federico; Montes, Alejandro; Balocchi, Luis Díaz; Gorza, Candela; Coronato, Andrea

doi:10.1016/j.geomorph.2021.107861

Cited by 4 publications

(3 citation statements)

References 68 publications

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“…These factors have led to the development of a mass monsoonal maritime glaciers in SETP (R. R. Chen et al, 2016; Shi et al, 2006; W. Yang et al, 2010; J. X. Zhang, Jia, et al, 2019). These maritime glaciers produced numerous glacial landforms due to their powerful subglacial erosion and rapid rates of ablation and deposition (R. R. Chen et al, 2016; San Martin et al, 2021; W. Yang et al, 2010). Afterward, glacial retreat due to climate change has allowed more glacial lakes to form in low‐lying lands (Clague & Evans, 2000; Dou et al, 2023; Mool et al, 2001; C. Q.…”

Section: Study Areamentioning

confidence: 99%

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The response of glaciers and glacial lakes to climate change in the Southeastern Tibetan Plateau over the past three decades

Dou,

Fan,

Wang

et al. 2023

Land Degrad Dev

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With global warming, changes in glaciers and glacial lakes on the Tibetan Plateau call for a serious inspection. The Southeastern Tibetan Plateau (SETP) is a typical monsoonal marine glacier area that is extremely vulnerable to climate change. It is affected by both humid and warm Indian Ocean currents. Outlines of glaciers and glacial lakes in SETP have been extracted from Landsat satellite images with an automatic extraction method based on image compositing with Google Earth Engine and Random Forest algorithm. Alongside the outlines, meteorological data have been collected from 1990 to 2021. The results show that since 1990 the glacier area of SETP has retreated by about 2165.33 km2 (~25.28%), the glacial lake area has increased by about 36.41 km2 (~21.45%), and their number has increased by 477 (~27.32%). The reliability and scientific validity of this study is proven by comparison with existing glacier inventories. By analyzing the meteorological data, the inverse correlation between the glacier area and temperature has been found. Despite decreases in cumulative precipitation, the glacial lake level rise and consequent area expansion have been observed. A fitting equation for the response pattern of glacier changes to temperature and precipitation change is presented and will provide a basis for future studies.

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Section: Study Areamentioning

confidence: 99%

“…Zhang, Jia, et al, 2019). These maritime glaciers produced numerous glacial landforms due to their powerful subglacial erosion and rapid rates of ablation and deposition (R. R. Chen et al, 2016;San Martin et al, 2021;W. Yang et al, 2010).…”

Section: Study Areamentioning

confidence: 99%

The response of glaciers and glacial lakes to climate change in the Southeastern Tibetan Plateau over the past three decades

Dou,

Fan,

Wang

et al. 2023

Land Degrad Dev

View full text Add to dashboard Cite

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“…Contemporary glacial lakes are easily recognized using a combination of glacier inventories and remote sensing images. Ancient glacial lakes can be identified from periglacial geomorphological characteristics, including moraine remnants and U-shaped valleys that are discernible from satellite observations (Post and Mayo, 1971;Westoby et al, 2014;Nie et al, 2018;Martín et al, 2021). A 10 km buffering distance of RGI 6.0 glacier boundaries that has been widely used in previous studies Wang et al, 2020) was created to help map glacial lakes.…”

Section: Definition Of Glacial Lakesmentioning

confidence: 99%

Landsat- and Sentinel-derived glacial lake dataset in the China–Pakistan Economic Corridor from 1990 to 2020

Lesi

Nie

Shugar

et al. 2022

Earth Syst. Sci. Data

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Abstract. The China–Pakistan Economic Corridor (CPEC) is one of the flagship projects of the One Belt One Road Initiative, which faces threats from water shortage and mountain disasters in the high-elevation region, such as glacial lake outburst floods (GLOFs). An up-to-date high-quality glacial lake dataset with parameters such as lake area, volume, and type, which is fundamental to water resource and flood risk assessments and prediction of glacier–lake evolutions, is still largely absent for the entire CPEC. This study describes a glacial lake dataset for the CPEC using a threshold-based mapping method associated with rigorous visual inspection workflows. This dataset includes (1) multi-temporal inventories for 1990, 2000, and 2020 produced from 30 m resolution Landsat images and (2) a glacial lake inventory for the year 2020 at 10 m resolution produced from Sentinel-2 images. The results show that, in 2020, 2234 lakes were derived from the Landsat images, covering a total area of 86.31±14.98 km2 with a minimum mapping unit (MMU) of 5 pixels (4500 m2), whereas 7560 glacial lakes were derived from the Sentinel-2 images with a total area of 103.70±8.45 km2 with an MMU of 5 pixels (500 m2). The discrepancy shows that Sentinel-2 can detect a large quantity of smaller lakes compared to Landsat due to its finer spatial resolution. Glacial lake data in 2020 were validated by Google Earth-derived lake boundaries with a median (± standard deviation) difference of 7.66±4.96 % for the Landsat-derived product and 4.46±4.62 % for the Sentinel-derived product. The total number and area of glacial lakes from consistent 30 m resolution Landsat images remain relatively stable despite a slight increase from 1990 to 2020. A range of critical attributes has been generated in the dataset, including lake types and mapping uncertainty estimated by an improved equation of Hanshaw and Bookhagen (2014). This comprehensive glacial lake dataset has the potential to be widely applied in studies on water resource assessment, glacial lake-related hazards, and glacier–lake interactions and is freely available at https://doi.org/10.12380/Glaci.msdc.000001 (Lesi et al., 2022).

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Giant kelp (Macrocystis pyrifera) morphological and reproductive strategies in two contrasting sub-Antarctic forests

Kaminsky,

Bagur,

Schloss

et al. 2023

Mar Biol

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Proglacial landform assemblage in a rapidly retreating cirque glacier due to temperature increase since 1970, Fuegian Andes, Argentina

Cited by 4 publications

References 68 publications

The response of glaciers and glacial lakes to climate change in the Southeastern Tibetan Plateau over the past three decades

The response of glaciers and glacial lakes to climate change in the Southeastern Tibetan Plateau over the past three decades

Landsat- and Sentinel-derived glacial lake dataset in the China–Pakistan Economic Corridor from 1990 to 2020

Giant kelp (Macrocystis pyrifera) morphological and reproductive strategies in two contrasting sub-Antarctic forests

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