Results 71 to 80 of about 112,938 (316)

Glacial meltwater drives high CH4 supersaturation in Maxwell Bay, King George Island (Southern Ocean)

Limnology and Oceanography Letters, EarlyView.
Abstract Coastal waters exhibit the highest and most dynamic dissolved CH4 concentrations in marine environments, but significant knowledge gaps on the distribution and emissions, particularly in the Southern Ocean, still exist. We quantified dissolved CH4 concentrations and sea–air fluxes in the coastal waters of Maxwell Bay, King George Island ...
Lina A. Holthusen, Hermann W. Bange, Damian L. Arévalo‐Martínez, Thomas H. Badewien, Juan Höfer, Carolin R. Löscher, Camila Marín‐Arias, Jens Meyerjürgens, Isabell Schlangen, Oliver Wurl   +9 more
wiley   +1 more source

An indicator of sea ice variability for the Antarctic marginal ice zone

The Cryosphere, 2022
Abstract. Remote-sensing records over the last 40 years have revealed large year-to-year global and regional variability in Antarctic sea ice extent. Sea ice area and extent are useful climatic indicators of large-scale variability, but they do not allow the quantification of regions of distinct variability in sea ice concentration (SIC).
M. Vichi, M. Vichi
openaire   +4 more sources

Phytoplankton iron limitation in the Atlantic Southern Ocean driven by seasonal mixed‐layer dynamics

Limnology and Oceanography Letters, EarlyView.
Abstract Phytoplankton blooms in the Southern Ocean (SO) are seasonally limited by light and micronutrients. As such, regional variations in iron supply from mixed‐layer winter entrainment are expected to impact the extent of seasonal iron limitation. Here, we determined seasonal iron limitation in the Atlantic SO by conducting iron addition incubation
Asmita Singh, Sandy J. Thomalla, Susanne Fietz, Saumik Samanta, Thato N. Mtshali, Alakendra N. Roychoudhury, Johannes J. Viljoen, Thomas J. Ryan‐Keogh   +7 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

Influence of tropical Atlantic meridional dipole of sea surface temperature anomalies on Antarctic autumn sea ice

Environmental Research Letters, 2022
Antarctic sea ice plays an important role in polar ecosystems and global climate, while its variability is affected by many factors. Teleconnections between the tropical and high latitudes have profound impacts on Antarctic climate changes through the ...
Xuya Ren, Li Zhang, Wenju Cai, Xichen Li, Chuan-Yang Wang, Yishuai Jin, Lixin Wu   +6 more
doaj   +1 more source

The Influence of Snow on Antarctic Sea Ice

, 2023
Snow cover affects the variability of the physical properties of sea ice. The snow’s unique thermal and optical properties govern the mass and energy fluxes in the sea ice system. They are important for sea ice evolution, energy exchanges between the ocean and the atmosphere, and light availability for ecosystems below the sea ice.
Dadic, R., Martin, J., Pirazzini, R., Schneebeli, M., Anderson, B., Cheng, B., Heil, P., Vargo, L., Jaggi, M., Leonard, G., Light, B., Rack, W., Smith, I., Wigmore, O., Webster, M.   +14 more
openaire   +2 more sources

Inter‐population variation in demographic responses to environmental changes: insights from four seabird populations

Oikos, EarlyView.
The variability in responses to environmental change between populations remains poorly quantified and understood. This shortcoming has major consequences, as variation and flexibility of life‐history traits between populations contribute to the estimation of the adaptive potential, which is necessary for predicting the responses of interconnected ...
Camille Schatz, Karine Delord, Dominique Joubert, Samuel Peroteau, Ruijiao Sun, Christophe Barbraud   +5 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

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

Informativeness (information-bearing) of factors forming interannual variability of the Barents Sea and its individual areas ice coveren

Российская Арктика, 2023
The various combinations of factors that form an interannual variability of ice coveren in the western, northeastern and southeastern parts of the Barents Sea were analysed for the period 1950 ̶ 2022. The co-phased cyclic fluctuations between the Barents
Lis N.A., Cherniavskaia E.A., Mironov E.U., Timokhov L.A., Egorova E.S.   +4 more
doaj   +1 more source