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- W3000653533 abstract "Abstract Most glaciers in South America and on the Antarctic Peninsula are retreating and thinning. They are considered strong contributors to global sea level rise. However, there is a lack of glacier mass balance studies in other areas of the Southern Hemisphere, such as the surrounding Antarctic Islands. Here, we present a detailed quantification of the 21st century glacier elevation and mass changes for the entire South Georgia Island using bi-static synthetic aperture radar interferometry between 2000 and 2013. The results suggest a significant mass loss since the beginning of the present century. We calculate an average glacier mass balance of −1.04 ± 0.09 m w.e.a −1 and a mass loss rate of 2.28 ± 0.19 Gt a −1 (2000–2013), contributing 0.006 ± 0.001 mm a −1 to sea-level rise. Additionally, we calculate a subaqueous mass loss of 0.77 ± 0.04 Gt a −1 (2003–2016), with an area change at the marine and lake-terminating glacier fronts of −6.58 ± 0.33 km 2 a −1 , corresponding to ∼4% of the total glacier area. Overall, we observe negative mass balance rates in South Georgia, with the highest thinning and retreat rates at the large outlet glaciers located at the north-east coast. Although the spaceborne remote sensing dataset analysed in this research is a key contribution to better understanding of the glacier changes in South Georgia, more detailed field measurements, glacier dynamics studies or further long-term analysis with high-resolution regional climate models are required to precisely identify the forcing factors." @default.
- W3000653533 created "2020-01-23" @default.
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- W3000653533 date "2020-03-01" @default.
- W3000653533 modified "2023-09-26" @default.
- W3000653533 title "Detailed quantification of glacier elevation and mass changes in South Georgia" @default.
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- W3000653533 doi "https://doi.org/10.1088/1748-9326/ab6b32" @default.
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