Results 81 to 90 of about 197,433 (331)

Antarctic Sea Ice—A Polar Opposite? [PDF]

Oceanography, 2012
As the world's ice diminishes in the face of climate change—from the dramatic decline in Arctic sea ice, to thinning at the margins of both the Greenland and Antarctic ice sheets, to retreating mountain glaciers the world over—Antarctic sea ice presents something of a paradox.
Maksym, Ted, Stammerjohn, Sharon E., Ackley, Stephen, Massom, Robert A.   +3 more
openaire   +3 more sources

Southern Ocean deep convection as a driver of Antarctic warming events [PDF]

, 2016
Simulations with a free-running coupled climate model show that heat release associated with Southern Ocean deep convection variability can drive centennial-scale Antarctic temperature variations of up to 2.0 °C.
Allison, Anderson, Barrows, Broecker, Carsey, Cheon, Chiang, Crowley, Dokken, Domingues, E. J. Steig, EPICA Community Members, Etourneau, Ferrari, Ferreira, Frölicher, Ganopolski, Gersonde, Golledge, Gordon, Gordon, Gordon, Gottschalk, Hall, Huber, J. B. Pedro, Kageyama, Kleppin, Lamy, Latif, Lavergne, Lee, Levitus, Ljung, Lopes dos Santos, M. Jochum, Marshall, Martin, Martin, Menviel, Montade, Park, Park, Parrenin, Pedro, Phanke, Piotrowski, Rind, Rintoul, Roemmich, S. O. Rasmussen, Schmittner, Sen-Gupta, Shevenell, Skinner, Steffensen, Stocker, T. Martin, Vettoretti, W. Park, WAIS Divide Project Members, Wang, Watson, Weaver   +63 more
core   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

The Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Winds and Meltwater Together Lead to Southern Ocean Surface Cooling and Sea Ice Expansion

Geophysical Research Letters, 2023
Southern Ocean surface cooling and Antarctic sea ice expansion from 1979 through 2015 have been linked both to changing atmospheric circulation and melting of Antarctica's grounded ice and ice shelves.
Lettie A. Roach, Kenneth D. Mankoff, Anastasia Romanou, Edward Blanchard‐Wrigglesworth, Thomas W. N. Haine, Gavin. A. Schmidt   +5 more
doaj   +1 more source

Impact of West Antarctic ice shelf melting on Southern Ocean hydrography [PDF]

The Cryosphere, 2020
Previous studies show accelerations of West Antarctic glaciers, implying that basal melt rates of these glaciers were previously small and increased in the middle of the 20th century. This enhanced melting is a likely source of the observed Ross Sea (RS)
Y. Nakayama, Y. Nakayama, R. Timmermann, H. H. Hellmer   +3 more
doaj   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

Low‐temperature soft electrochemical actuator based on hierarchically structured polypyrrole membranes for subzero operation

FlexMat, EarlyView.
A soft electrochemical actuator using a hierarchically structured polypyrrole membrane with coral‐like hollow vesicles achieves stable performance at −24°C. The unique architecture ensures continuous conductivity and rapid ion diffusion, resulting in large strain, low energy consumption, and high coulombic efficiency under subzero conditions. This work
Lizhen Lan, Yimeng Li, Shasha Wang, Fujun Wang, Ze Zhang, Lu Wang, Jifu Mao   +6 more
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

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

Arctic and Antarctic Sea Ice Change: Contrasts, Commonalities, and Causes.

Annual Review of Marine Science, 2019
Arctic sea ice has declined precipitously in both extent and thickness over the past four decades; by contrast, Antarctic sea ice has shown little overall change, but this masks large regional variability.
T. Maksym
semanticscholar   +1 more source