12733 to 12744 of 14011 results
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Using fatty acid analysis to elucidate the feeding habits of Southern Ocean mesopelagic fish
Read more of: Using fatty acid analysis to elucidate the feeding habits of Southern Ocean mesopelagic fishFatty acid biomarkers were used to investigate the feeding ecology of 17 mesopelagic fish species occurring in the Southern Ocean. Fatty acid signatures of species where little or no dietary […]
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Trophic position of deep-sea fish – assessment through fatty acid and stable isotope analyses
Read more of: Trophic position of deep-sea fish – assessment through fatty acid and stable isotope analysesTo investigate the trophic ecology of two of the dominant families of deep-sea fish (Macrouridae and Moridae) fatty acid and stable isotope analyses were applied to liver and muscle samples […]
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Subglacial intermediate volcanism at Kerlingarfjoll, Iceland: magma-water interactions beneath thick ice
Read more of: Subglacial intermediate volcanism at Kerlingarfjoll, Iceland: magma-water interactions beneath thick iceThe products of andesite and dacite glaciovolcanism at Kerlingarfjoll are unlike others previously described in the literature. Three sequences of lithofacies are described and interpreted here. The andesitic deposits at […]
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Quantifying the metabolic cost to an Antarctic liverwort of responding to an abrupt increase in UVB radiation exposure
Read more of: Quantifying the metabolic cost to an Antarctic liverwort of responding to an abrupt increase in UVB radiation exposureWe quantified the metabolic cost to the Antarctic leafy liverwort Cephaloziella varians of responding to an abrupt increase in ultraviolet B (UVB) radiation exposure in the natural environment at Rothera […]
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Sediment infill of subglacial meltwater channels on the West Antarctic continental shelf
Read more of: Sediment infill of subglacial meltwater channels on the West Antarctic continental shelfSubglacial meltwater plays a significant yet poorly understood role in the dynamics of the Antarctic ice sheets. Here we present new swath bathymetry from the western Amundsen Sea Embayment, West […]
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Bedform topography and basal conditions beneath a fast-flowing West Antarctic ice stream
Read more of: Bedform topography and basal conditions beneath a fast-flowing West Antarctic ice streamA grid of seismic reflection lines has been used to image basal topography and infer basal conditions and flow processes beneath similar to 140 km(2) of Rutford Ice Stream, West […]
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Nature of the Antarctic Peninsula Ice Sheet during the Pliocene: geological evidence and modelling results compared
Read more of: Nature of the Antarctic Peninsula Ice Sheet during the Pliocene: geological evidence and modelling results comparedIn this paper, we examine the nature of the Pliocene Antarctic Peninsula Ice Sheet by comparing the terrestrial and marine geological records of the Antarctic Peninsula and surrounding sea floor […]
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Interpreting temperature information from ice cores along the Antarctic Peninsula: ERA40 analysis
Read more of: Interpreting temperature information from ice cores along the Antarctic Peninsula: ERA40 analysisAnalysis of ERA40 temperature and accumulation data suggests that annual mean isotopic fluctuations due to temperature change will be geographically very variable across the Peninsula: isotopic variations of 0.4 parts […]
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Understanding the regional variability of eddy diffusivity in the Pacific sector of the Southern Ocean
Read more of: Understanding the regional variability of eddy diffusivity in the Pacific sector of the Southern OceanA diagnostic framework is presented, based on the Nakamura effective diffusivity, to investigate the regional variation in eddy diffusivity. Comparison of three different diffusivity calculations enables the effects of locally […]
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Robustness of an effective diffusivity diagnostic in oceanic flows
Read more of: Robustness of an effective diffusivity diagnostic in oceanic flowsThe robustness of Nakamura’s effective diffusivity diagnostic for quantifying eddy diffusivities of tracers within a streamwise-average framework is carefully examined in an oceanographic context, and the limits of its applicability […]
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Local mixing events in the upper troposphere and lower stratosphere. Part II: seasonal and interannual variability
Read more of: Local mixing events in the upper troposphere and lower stratosphere. Part II: seasonal and interannual variabilityThe Lyapunov diffusivity is used to investigate local isentropic mixing events in the upper troposphere lower stratosphere (UTLS) region. The diagnostic highlights the seasonal cycle of the longitudinally varying mixing […]