Glacier Grounding Lines
Glacier Grounding lines are a key indicator of Antarctic ice-sheet instability. Changes in their position reflect imbalance with the surrounding ocean and affect the flow of inland ice.
Data Sets Available for Download
| File Type | Description | Format | Download Link |
|---|---|---|---|
| ASCII | Rates of Antarctic Grounding Line Migration (vgl) and respective uncertainty (delta vgl) from Cryosat-2 surface elevation and surface elevation change observations | 5 lines of header Per line:latitude (decimal degs)longitude (decimal degs East)Rate of GL Migration (m/yr)Uncertainty in GL rate (m/yr) | gl_migration_konrad_et_al_2018.txt |
A full explanation of methods and data is given in:
Konrad, Shepherd, Gilbert, Hogg, McMillan, Muir, and Slater: Net retreat of Antarctic glacier grounding lines, Nature Geoscience, 11, 258-262, 2018, https://doi.org/10.1038/s41561-018-0082-z
For this data set, the direction of grounding line motion was assumed to follow option 3 as explained in the Methods section of the referenced publication.
When using these data, please acknowledge the authors by citing this article.