History, mass loss, structure, and dynamic behavior of the Antarctic Ice Sheet

@article{Bell2020HistoryML,
  title={History, mass loss, structure, and dynamic behavior of the Antarctic Ice Sheet},
  author={Robin E. Bell and H{\'e}l{\`e}ne Seroussi},
  journal={Science},
  year={2020},
  volume={367},
  pages={1321 - 1325}
}
Antarctica contains most of Earth’s fresh water stored in two large ice sheets. The more stable East Antarctic Ice Sheet is larger and older, rests on higher topography, and hides entire mountain ranges and ancient lakes. The less stable West Antarctic Ice Sheet is smaller and younger and was formed on what was once a shallow sea. Recent observations made with several independent satellite measurements demonstrate that several regions of Antarctica are losing mass, flowing faster, and… 
The Southern Ocean and its interaction with the Antarctic Ice Sheet
TLDR
As climate warms and atmospheric circulation changes, there will be follow-on changes in the ocean circulation and temperature, which will affect the pace of mass loss of the Antarctic Ice Sheet.
Stabilizing effect of mélange buttressing on the Marine Ice Cliff Instability of the West Antarctic Ice Sheet
Abstract. Due to global warming and particularly high regional ocean warming, both Thwaites and Pine Island glaciers in the Amundsen region of the Antarctic Ice Sheet could lose their buttressing ice
Water stable isotopes in snow along a traverse of the West Antarctic Ice Sheet: insights into moisture origins, air-masses distillation history, and climatic value.
This study investigated the water isotopic content (δ18O, δD, d-excess) of the surface snow along a 995 km traverse over the West Antarctic Ice Sheet from the Möller Ice Stream - Institute Ice Stream
ANALYSIS OF OVERESTIMATION IN HISTORICAL ICE FLOW VELOCITY MAPS IN WESTERN PACIFIC OCEAN SECTOR, ANTARCTICA
  • S. Ge, Y. Cheng, G. Qiao
  • Engineering
    The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
  • 2022
Abstract. High accuracy reconstruction of historical ice flow velocity fields is crucial in mass balance research of the Antarctic Ice Sheet by utilizing the input-output approach. A historical flow
Dropstones in the Mar del Plata Canyon Area (SW Atlantic): Evidence for Provenance, Transport, Distribution, and Oceanographic Implications
A variety of gravel‐ to cobble‐sized rocks, recovered from the Mar del Plata (MdP) Canyon area (Western South Atlantic at 38°S) and interpreted as ice‐rafted debris, represent the first evidence that
PARASO, a circum-Antarctic fully coupled ice-sheet–ocean–sea-ice–atmosphere–land model involving f.ETISh1.7, NEMO3.6, LIM3.6, COSMO5.0 and CLM4.5
Abstract. We introduce PARASO, a novel five-component fully coupled regional climate model over an Antarctic circumpolar domain covering the full Southern Ocean. The state-of-the-art models used are
Protecting ice from melting under sunlight via radiative cooling
As ice plays a critical role in various aspects of life, from food preservation to ice sports and ecosystem, it is desirable to protect ice from melting, especially under sunlight. The fundamental
Cultivation and characterization of snowbound microorganisms from the South Pole.
TLDR
Enriched and isolated two new strains of bacteria and one strain of yeast (Fungi) from South Pole snow samples, and the yeast strain additionally showed considerable halotolerance, expand the understanding of the diversity and metabolic activities of snowbound microorganisms of interior Antarctica.
Human-Made Risks and Climate Change with Global Heating
In this chapter, we discuss the evidence for climate change through global warming and the evidence that this global heating has an anthropogenic origin. We discuss the inter-linked issue of the
Maintaining Antarctica's isolation from non-native species.
  • D. Bergstrom
  • Environmental Science
    Trends in ecology & evolution
  • 2021
...
...

References

SHOWING 1-10 OF 62 REFERENCES
Snowfall‐driven mass change on the East Antarctic ice sheet
An improved understanding of processes dominating the sensitive balance between mass loss primarily due to glacial discharge and mass gain through precipitation is essential for determining the
Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets
Many glaciers along the margins of the Greenland and Antarctic ice sheets are accelerating and, for this reason, contribute increasingly to global sea-level rise. Globally, ice losses contribute ∼1.8
Observed rapid bedrock uplift in Amundsen Sea Embayment promotes ice-sheet stability
TLDR
Using GPS, Barletta et al. found that the viscosity of the mantle under the West Antarctic Ice Sheet is much lower than expected, which means that as ice is lost, the crust rebounds much faster than previously expected.
Widespread movement of meltwater onto and across Antarctic ice shelves
TLDR
It is discovered that ponds often form part of widespread, large-scale surface drainage systems, which could accelerate future ice-mass loss from Antarctic, potentially via positive feedbacks between the extent of exposed rock, melting and thinning of the ice sheet.
Stabilizing the West Antarctic Ice Sheet by surface mass deposition
TLDR
It is shown that the WAIS may be stabilized through mass deposition in coastal regions around Pine Island and Thwaites glaciers if applied over a short period of 10 years onto the region (−2 mm year−1 sea level equivalent).
Ice-Shelf Melting Around Antarctica
TLDR
Detailed glaciological estimates of ice-shelf melting around the entire continent of Antarctica show that basal melting accounts for as much mass loss as does calving, making ice- shelf melting the largest ablation process in Antarctica.
Mass balance of the Antarctic Ice Sheet from 1992 to 2017
TLDR
This work combines satellite observations of its changing volume, flow and gravitational attraction with modelling of its surface mass balance to show that the Antarctic Ice Sheet lost 2,720 ± 1,390 billion tonnes of ice between 1992 and 2017, which corresponds to an increase in mean sea level of 7.6‚¬3.9 millimetres.
Mass balance of the Antarctic Ice Sheet from 1992 to 2017
The Antarctic Ice Sheet is an important indicator of climate change and driver of sea-level rise. Here we combine satellite observations of its changing volume, flow and gravitational attraction with
Deformation of till beneath ice stream B, West Antarctica
The behaviour and possible instability of the West Antarctic ice sheet depend fundamentally on the dynamics of the large ice streams which drain it. Model calculations show that most ice-stream
Antarctic ice shelf potentially stabilized by export of meltwater in surface river
TLDR
The results suggest that, in a future warming climate, surface rivers could export melt off the large ice shelves surrounding Antarctica—contrary to present Antarctic ice-sheet models, which assume that meltwater is stored on the ice surface where it triggers ice-shelf disintegration.
...
...