Results 71 to 80 of about 91,538 (269)

Epistemic opacity in Antarctic science: Unknowing the last frontier

People and Nature, EarlyView.
Abstract Antarctica is facing intensifying pressures from climate change, industrial fishing, tourism and renewed geopolitical competition, even as scientific activity on the continent reaches unprecedented levels. We argue that this proliferation of research often fails to deliver the integrated, policy‐relevant knowledge needed for precautionary ...
Virginia Morandini, Álvaro Soutullo
wiley   +1 more source

Simulated Antarctic sea ice expansion reconciles climate model with observation

npj Climate and Atmospheric Science
Observations reveal Antarctic sea ice expansion and Southern Ocean surface cooling trends from 1979 to 2014, whereas climate models mostly simulate the opposite. Here I use historical ensemble simulations with multiple climate models to show that sea-ice
Wei Liu
doaj   +1 more source

Decadal transformations of antarctic sea ice modes

Frontiers in Marine Science
In light of ongoing global warming and the accelerated melting of Antarctic sea ice, this study aims to analyze the recent changes in the principal modes of Antarctic sea ice over the past decade, utilizing Empirical Orthogonal Function (EOF) and ...
Benli Guo, Benli Guo, Benli Guo, Peng Yang, Peng Yang, Peng Yang, Jie Yuan, Jie Yuan, Jie Yuan, Honglian Xing, Honglian Xing, Honglian Xing, Wenjie Yuan, Wenjie Yuan, Wenjie Yuan, Yuanku Meng, Yuanku Meng, Yuanku Meng   +17 more
doaj   +1 more source

Multi-year spatial distribution of Antarctic sea ice (1988 - 2017)

Terrestrial, Atmospheric and Oceanic Sciences, 2021
In this study, we used daily sea-ice concentration data from the National Snow and Ice Data Center from 1988 to 2017 to investigate the spatial distribution of Antarctic sea ice by calculating the annual mean sea-ice concentration and multi-year sea ice ...
Xingdong Wang, Shuhui Yang, Zhankai Wu
doaj   +1 more source

The Ice of the Southern Ocean [PDF]

, 1967
Regular sea ice observations off the coasts of Antarctica in the Mirny Station area have been made by the Soviet Antarctic Expedition since 1956. For eight years air ice reconnaissance over the Davis Sea has been made from Mirny Station during all the ...
A. F. Treshnikov
core   +1 more source

Antarctic bedrock topography uncertainty and ice sheet stability [PDF]

, 2015
All Rights Reserved. Antarctic bedrock elevation estimates have uncertainties exceeding 1km in certain regions. Bedrock elevation, particularly where the bedrock is below sea level and bordering the ocean, can have a large impact on ice sheet stability ...
Bassis, Collins, Cook, D. Pollard, DeConto, Dowsett, E. Gasson, Fretwell, Gladstone, Gomez, Holland, Mercer, Miller, Naish, Naish, Nick, Pal, Pattyn, Pollard, Pollard, Pollard, Pritchard, R. DeConto, Raymo, Schoof, Seki, Sun, Thompon, Weertman, Wilson, Young   +30 more
core   +2 more sources

The Age and Origin of Block Deposits in the Victorian Alps, Australia

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows, Michelle S. Worland, Julian Murton, Stephanie C. Mills, L. Keith Fifield   +4 more
wiley   +1 more source

ENSO’s impact on linear and nonlinear predictability of Antarctic sea ice

npj Climate and Atmospheric Science
While the influence of ENSO on Antarctic sea ice variability is well-known, its role in sea ice predictability, both linear and nonlinear, remains unexplored.
Yunhe Wang, Xiaojun Yuan, Yibin Ren, Xiaofeng Li, Arnold L. Gordon   +4 more
doaj   +1 more source

A pilot variational coupled reanalysis based on the CESAM climate model

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Variational data assimilation of in‐situ and satellite ocean data and reanalysis atmospheric data into an intermediate complexity Earth system model is possible by adjusting the surface fluxes and internal model parameters. This pilot application requires nearly complete information on the atmospheric state for synchronization.
Armin Köhl, Iuliia Polkova, Guokun Lyu, Frank Lunkeit, Abhirup Banerjee, Silke Schubert, Detlef Stammer   +6 more
wiley   +1 more source

History of oceanic front development in the New Zealand sector of the Southern Ocean during the Cenozoic--a synthesis [PDF]

, 2001
The New Zealand sector of the Southern Ocean (NZSSO) has opened about the Indian-Pacific spreading ridge throughout the Cenozoic. Today the NZSSO is characterised by broad zonal belts of antarctic (cold), subantarctic (cool), and subtropical (warm ...
Abelmann A., Abreu V. S., Arnold A. J., Baldauf J. G., Baldauf J. G., Barker P. F., Barrera E., Berggren W. A., Beu A. G., Chaproniere G. C. H., Crux J. A., Devereux I., Edwards A. R., Edwards A. R., Fordyce R. E., Gordon A. L., Hampton M. A., Hanna E., Harwood D. M., Head P. S., Hollis C. J., Hornibrook N. de B., Hornibrook N. de B., Jaques A. L., Jenkins D. G., Keany J., Keller G., Kennett D. M., Kennett J. P., Kennett J. P., Kennett J. P., Kennett J. P., Kennett J. P., Kennett J. P., Kennett J. P., Kennett J. P., Lawver L. A., Lawver L. A., Lazarus D., Mackie J., Miller K. G., Murphy M. G., Nelson C. S., O'Connell S. B., Pearce F., Raymo M., Rohling E. J., Sancetta C., Sancetta C., Shackleton N. J., Shackleton N. J., Shafik S., Stott L. D., Sutherland F. L., Tsuchi R., Van Couvering J. A., Vella P., Wei W., Wise S. W., Wolfe J. A., Zachos J. C.   +60 more
core   +2 more sources