Articles | Volume 14, issue 7
The Cryosphere, 14, 2313–2330, 2020
https://doi.org/10.5194/tc-14-2313-2020
The Cryosphere, 14, 2313–2330, 2020
https://doi.org/10.5194/tc-14-2313-2020

Research article 22 Jul 2020

Research article | 22 Jul 2020

Lateral meltwater transfer across an Antarctic ice shelf

Rebecca Dell et al.

Model code and software

Fully Automated Supraglacial-Water Tracking algorithm for Ice Shelves (FASTISh). Rebecca Dell, Neil Arnold, Ian Willis, Alison Banwell, Andrew Williamson, Hamish Pritchard, and Andrew Orr https://doi.org/10.17863/CAM.54008

Video supplement

S.2 (GIF of all 11 RGB base images) Rebecca Dell, Neil Arnold, Ian Willis, Alison Banwell, Andrew Williamson, Hamish Pritchard, and Andrew Orr https://doi.org/10.5446/47526

S.3 (GIF of all 11 area matrices) Rebecca Dell, Neil Arnold, Ian Willis, Alison Banwell, Andrew Williamson, Hamish Pritchard, and Andrew Orr https://doi.org/10.5446/47524

S.4 (GIF of all 11 depth matrices) Rebecca Dell, Neil Arnold, Ian Willis, Alison Banwell, Andrew Williamson, Hamish Pritchard, and Andrew Orr https://doi.org/10.5446/47525

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Short summary
A semi-automated method is developed from pre-existing work to track surface water bodies across Antarctic ice shelves over time, using data from Sentinel-2 and Landsat 8. This method is applied to the Nivlisen Ice Shelf for the 2016–2017 melt season. The results reveal two large linear meltwater systems, which hold 63 % of the peak total surface meltwater volume on 26 January 2017. These meltwater systems migrate towards the ice shelf front as the melt season progresses.