Results 81 to 90 of about 112,938 (316)

The seasonality of Antarctic sea ice trends [PDF]

open access: yesGeophysical Research Letters, 2014
AbstractAntarctic sea ice is experiencing a weak overall increase in area that is the residual of opposing regional trends. This study considers their seasonal pattern. In addition to traditional ice concentration and total ice area, temporal derivatives of these quantities are investigated (“intensification” and “expansion,” respectively).
openaire   +3 more sources

Periglacial Vegetation‐Banked Terraces: A Global Survey

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT Periglacial vegetation‐banked terraces (VBTs) are roughly parallel, step‐like landforms with bare treads and vegetated risers, where tread length (across‐slope) markedly exceeds tread width (downslope). Many follow the contour, but others dip off‐contour at angles of up to 40°.
Colin K. Ballantyne
wiley   +1 more source

Sensitivity of near‐surface marine winds and wind stress in coastal Antarctica to regional atmospheric model configuration

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Marine winds near coastal Antarctica are important for sea‐ice variability and ocean circulation. We test the sensitivity of simulated winds to varying uncertain aspects of the atmospheric model configuration. Winds (each configuration a coloured solid line in the figure) are sensitive to model physics, and notably we find that wind stress over a ...
Thomas Caton Harrison   +5 more
wiley   +1 more source

Last Interglacial subsurface warming on the Antarctic shelf triggered by reduced deep-ocean convection

open access: yesCommunications Earth & Environment
The Antarctic ice-sheet could have contributed 3 to 5 m sea-level equivalent to the Last Interglacial sea-level highstand. Such an Antarctic ice-mass loss compared to pre-industrial requires a subsurface warming on the Antarctic shelf of ~ 3 °C according
Nicholas King-Hei Yeung   +5 more
doaj   +1 more source

Report of the night session "Progress in Research into Sea Ice Biota of the Antarctic Ocean" presented at the Spring Meeting of the Oceanographic Society of Japan, 2015

open access: yesAntarctic Record, 2015
The workshop "Progress in Research into Sea Ice Biota of the Antarctic Ocean" was held on 24 March 2015 at Tokyo University of Marine Science and Technology (TUMSAT) as a night session under the joint sponsorship of the Oceanographic Society of Japan ...
Atsushi Tanimura   +5 more
doaj   +1 more source

Recent observations of Antarctic sea‐ice [PDF]

open access: yesWeather, 1999
Antarctic sea-ice is potentially one of the most sensitive global warming indicators. Some re- cent studies using coupled ocean-atmosphere general circulation models suggest that C0,- induced warming and concomitant sea-ice re- duction might be less marked than in the Arctic (Gordon and O’Farrell 1997); certainly the ...
openaire   +1 more source

Contrasting impacts of two mesoscale cyclones on the South Shetland Islands' glaciers, northern Antarctic Peninsula

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study analyzed the impact of two mesoscale cyclones on the meteorology and glaciology of South Shetland Islands (SSI) glaciers, using in‐situ observations, ERA5 reanalysis data, and high‐resolution weather and glacier mass balance models. Mesoscale cyclones drive temperature drops, heavy snowfall, and strong winds over the SSI, significantly ...
Christian Torres   +6 more
wiley   +1 more source

A Bayesian Model for 20th Century Antarctic Sea Ice Extent Reconstruction

open access: yesEarth and Space Science
Antarctic sea ice, a key component in the complex Antarctic climate system, is an important driver and indicator of the global climate. In the relatively short satellite‐observed period from 1979 to 2022 the sea ice extent has continuously increased ...
T. J. Maierhofer   +3 more
doaj   +1 more source

Understanding place attachment to remote environments: An Antarctic case study

open access: yesGeographical Research, EarlyView.
Abstract The Anthropocene presents unique challenges for humanity’s relationship with remote environments. Transboundary environmental problems, such as climate change or plastics pollution, affect places that are beyond most people’s direct experience.
Katie Marx   +3 more
wiley   +1 more source

The association of Antarctic krill Euphausia superba with the under-ice habitat.

open access: yesPLoS ONE, 2012
The association of Antarctic krill Euphausia superba with the under-ice habitat was investigated in the Lazarev Sea (Southern Ocean) during austral summer, autumn and winter.
Hauke Flores   +7 more
doaj   +1 more source

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