Results 31 to 40 of about 6,560 (235)

Physical processes and feedbacks obscuring the future of the Antarctic Ice Sheet

open access: yesGeosystems and Geoenvironment, 2022
The Antarctic Ice Sheet holds a vital role in Earth's climate system and its changes have global implications for the climate, sea level, coastal ecosystems and population.
Dawei Li
doaj   +1 more source

Remote Sensing of Antarctic Glacier and Ice-Shelf Front Dynamics—A Review

open access: yesRemote Sensing, 2018
The contribution of Antarctica’s ice sheet to global sea-level rise depends on the very dynamic behavior of glaciers and ice shelves. One important parameter of ice-sheet dynamics is the location of glacier and ice-shelf fronts.
Celia A. Baumhoer   +3 more
doaj   +1 more source

West Antarctic Ice Sheet Dynamics in the Amundsen Sea Sector since the Late Miocene—Tying IODP Expedition 379 Results to Seismic Data

open access: yesFrontiers in Earth Science, 2022
Observations of rapid ongoing grounding line retreat, ice shelf thinning and accelerated ice flow from the West Antarctic Ice Sheet (WAIS) may forebode a possible collapse if global temperatures continue to increase. Understanding and reconstructing West
Johanna Gille-Petzoldt   +30 more
doaj   +1 more source

Did the West Antarctic Ice Sheet Create the East Antarctic Ice Sheet? [PDF]

open access: yesAnnals of Glaciology, 1982
The mostly terrestrial East Antarctic ice sheet is ten times larger and probably more stable than the mostly marine West Antarctic ice sheet. It is natural to suppose that the former appeared first, and that perhaps the latter was partially formed from an outflow of East Antarctic ice onto the West Antarctic continental shelf.
openaire   +1 more source

Changes in the Antarctic’s Summer Surface Albedo, Observed by Satellite since 1982 and Associated with Sea Ice Anomalies

open access: yesRemote Sensing, 2023
In polar regions, positive feedback of snow and ice albedo can intensify global warming. While recent significant decreases in Arctic surface ice albedo have drawn considerable attention, Antarctic surface albedo variability remains underexplored.
Yuqi Sun   +3 more
doaj   +1 more source

Antarctic blue-ice moraines: Analogue for Northern Hemisphere ice sheets? [PDF]

open access: yesQuaternary Science Reviews, 2020
Abstract This paper reviews the distribution, character and age of blue-ice moraines in Antarctica and asks whether there are implications for the study of former Pleistocene ice sheets in the Northern Hemisphere. Blue-ice forms where acceleration of downslope katabatic winds removes snow and causes ice to ablate.
David Sugden, Adrian Hall
openaire   +1 more source

Modeling Antarctic ice sheet loss [PDF]

open access: yesScience, 2019
Cryosphere Knowledge of the speed and scale of ice-shelf melting in Antarctica is crucial for estimates of ice sheet loss. How accurate do models need to be to capture these processes and yield useful projections of future ice sheet loss and the resulting sea level rise? To address this question, Goldberg et al.
openaire   +1 more source

Antarctic Ice Sheet fertilises the Southern Ocean [PDF]

open access: yesBiogeosciences, 2013
Abstract. Southern Ocean (SO) marine primary productivity (PP) is strongly influenced by the availability of iron in surface waters, which is thought to exert a significant control upon atmospheric CO2 concentrations on glacial/interglacial timescales. The zone bordering the Antarctic Ice Sheet exhibits high PP and seasonal plankton blooms in response ...
Death, R.   +7 more
openaire   +6 more sources

Uncertainty quantification of the multi-centennial response of the Antarctic ice sheet to climate change [PDF]

open access: yesThe Cryosphere, 2019
Ice loss from the Antarctic ice sheet (AIS) is expected to become the major contributor to sea level in the next centuries. Projections of the AIS response to climate change based on numerical ice-sheet models remain challenging due to the complexity of ...
K. Bulthuis   +4 more
doaj   +1 more source

Future Antarctic bed topography and its implications for ice sheet dynamics [PDF]

open access: yesSolid Earth, 2014
The Antarctic bedrock is evolving as the solid Earth responds to the past and ongoing evolution of the ice sheet. A recently improved ice loading history suggests that the Antarctic Ice Sheet (AIS) has generally been losing its mass since the Last ...
S. Adhikari   +5 more
doaj   +1 more source

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