Weekly to monthly terminus variability of Greenland's marine-terminating outlet glaciers

Black, Taryn E.; Joughin, Ian

doi:https://doi.org/10.5194/tc-17-1-2023

Articles | Volume 17, issue 1

https://doi.org/10.5194/tc-17-1-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-17-1-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 1

Research article

|

05 Jan 2023

Research article |

| 05 Jan 2023

Weekly to monthly terminus variability of Greenland's marine-terminating outlet glaciers

Taryn E. Black and Ian Joughin

Supplement

https://doi.org/10.5194/tc-17-1-2023-supplement

Data sets

MEaSUREs Weekly-To-Monthly Greenland Outlet Glacier Terminus Positions From Sentinel-1 Mosaics, Version 1 Taryn Black and Ian Joughin https://doi.org/10.5067/DGBOSSIULSTD

MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 4 Ian Joughin https://doi.org/10.5067/J9PKP1B9HX6F

Model code and software

tarynblack/greenland_terminus_seasonality: v1.0 Taryn Black https://doi.org/10.5281/zenodo.7434896

Short summary

The frontal positions of most ice-sheet-based glaciers in Greenland vary seasonally. On average, these glaciers begin retreating in May and begin advancing in October, and the difference between their most advanced and most retreated positions is 220 m. The timing may be related to the timing of melt on the ice sheet, and the seasonal length variation may be related to glacier speed. These seasonal variations can affect glacier behavior and, consequently, how much ice is lost from the ice sheet.