Transient ice sheet response of the Antarctic Ice Sheet during the Last Interglacial - Wilkes Basin collapse scenarios
Fuente:
PANGAEA
Saved in:
| Main Author: | |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2020
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867171868818014208 |
|---|---|
| author | Sutter, Johannes |
| author_facet | Sutter, Johannes |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The response of the East Antarctic Ice Sheet to global warming represents a major source of uncertainty in sea level projections. Thinning of the East Antarctic George V and Sabrina Coast ice-cover is currently taking place, and regional ice-sheet instability episodes might have been triggered in past warm climates. However, the magnitude of ice retreat in the past can not yet be quantitatively derived from paleo-proxy records alone. We propose that a runaway retreat of the George V coast grounding line and subsequent instability of the Wilkes Basin ice-sheet would either leave a clear imprint on the water isotope composition in the Talos Dome region or prohibit a Talos Dome ice-core record from the Last Interglacial altogether. Testing this hypothesis our ice sheet model simulations suggest, that Wilkes Basin ice-sheet retreat remained relatively limited during the Last Interglacial and provide a constraint on Last Interglacial East Antarctic grounding line stability. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_918108 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Transient ice sheet response of the Antarctic Ice Sheet during the Last Interglacial - Wilkes Basin collapse scenarios Sutter, Johannes Antarctica; File format; File name; File size; Ice Sheet Modelling; Last Interglacial; MISI; sea level; Uniform resource locator/link to file The response of the East Antarctic Ice Sheet to global warming represents a major source of uncertainty in sea level projections. Thinning of the East Antarctic George V and Sabrina Coast ice-cover is currently taking place, and regional ice-sheet instability episodes might have been triggered in past warm climates. However, the magnitude of ice retreat in the past can not yet be quantitatively derived from paleo-proxy records alone. We propose that a runaway retreat of the George V coast grounding line and subsequent instability of the Wilkes Basin ice-sheet would either leave a clear imprint on the water isotope composition in the Talos Dome region or prohibit a Talos Dome ice-core record from the Last Interglacial altogether. Testing this hypothesis our ice sheet model simulations suggest, that Wilkes Basin ice-sheet retreat remained relatively limited during the Last Interglacial and provide a constraint on Last Interglacial East Antarctic grounding line stability. |
| title | Transient ice sheet response of the Antarctic Ice Sheet during the Last Interglacial - Wilkes Basin collapse scenarios |
| topic | Antarctica; File format; File name; File size; Ice Sheet Modelling; Last Interglacial; MISI; sea level; Uniform resource locator/link to file |
| url | https://doi.org/10.1594/PANGAEA.918108 |