Fracture propagation and stability of ice shelves governed by ice shelf heterogeneity
Sign Up to like & getrecommendations! Published in 2017 at "Geophysical Research Letters"
DOI: 10.1002/2017gl072648
Abstract: Tabular iceberg calving and ice shelf retreat occurs after full-thickness fractures, known as rifts, propagate across an ice shelf. A quickly evolving rift signals a threat to the stability of Larsen C, the Antarctic Peninsula's… read more here.
Keywords: ice shelf; ice shelves; stability; ice ... See more keywords
Time-dependent freshwater input from ice shelves: impacts on Antarctic sea ice and the Southern Ocean in an Earth System Model†
Sign Up to like & getrecommendations! Published in 2017 at "Geophysical Research Letters"
DOI: 10.1002/2017gl075017
Abstract: Earth System Models do not reproduce the observed increase in Antarctic sea ice extent which may be due to the unrealistic representation of ice shelves. Here we investigate the response of sea ice to increasing… read more here.
Keywords: freshwater input; ice shelves; ice; sea ice ... See more keywords
Can unconfined ice shelves provide buttressing via hoop stresses?
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Glaciology"
DOI: 10.1017/jog.2019.101
Abstract: The stress balance within an ice shelf is key to the resistance, or buttressing, it can provide and in part controls the rate of ice discharge from the upstream ice sheet. Unconfined ice shelves are… read more here.
Keywords: unconfined ice; ice shelves; provide buttressing; hoop stresses ... See more keywords
Diurnal lake-level cycles on ice shelves driven by meltwater input and ocean tidal tilt
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Glaciology"
DOI: 10.1017/jog.2019.98
Abstract: Diurnal depth cycles of decimeter scale are observed in a supraglacial lake on the McMurdo Ice Shelf, Antarctica. We evaluate two possible causes: (1) tidal tilt of the ice shelf in response to the underlying… read more here.
Keywords: ice shelf; tidal tilt; ice shelves; lake ... See more keywords
Widespread movement of meltwater onto and across Antarctic ice shelves
Sign Up to like & getrecommendations! Published in 2017 at "Nature"
DOI: 10.1038/nature22049
Abstract: Surface meltwater drains across ice sheets, forming melt ponds that can trigger ice-shelf collapse, acceleration of grounded ice flow and increased sea-level rise. Numerical models of the Antarctic Ice Sheet that incorporate meltwater’s impact on… read more here.
Keywords: surface drainage; ice shelves; surface; ice ... See more keywords
The far reach of ice-shelf thinning in Antarctica
Sign Up to like & getrecommendations! Published in 2017 at "Nature Climate Change"
DOI: 10.1038/s41558-017-0020-x
Abstract: Floating ice shelves, which fringe most of Antarctica’s coastline, regulate ice flow into the Southern Ocean1–3. Their thinning4–7 or disintegration8,9 can cause upstream acceleration of grounded ice and raise global sea levels. So far the… read more here.
Keywords: ice shelf; response; shelf thinning; ice shelves ... See more keywords
A 15-year circum-Antarctic iceberg calving dataset derived from continuous satellite observations
Sign Up to like & getrecommendations! Published in 2021 at "Earth System Science Data"
DOI: 10.5194/essd-13-4583-2021
Abstract: Abstract. Iceberg calving is the main process that facilitates the dynamic mass loss of ice sheets into the ocean, which accounts for approximately half of the mass loss of the Antarctic ice sheet. Fine-scale calving… read more here.
Keywords: ice; antarctic ice; dataset; ice shelves ... See more keywords