3949 to 3960 of 13722 results
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Structure, variability, and mean-flow interactions of the January 2015 quasi-two-day wave at middle and high southern latitudes
Read more of: Structure, variability, and mean-flow interactions of the January 2015 quasi-two-day wave at middle and high southern latitudesThe structure, variability, and mean-flow interactions of the quasi-2-day wave (Q2DW) in the mesosphere and lower thermosphere during January 2015 were studied employing meteor and medium-frequency radar winds at eight […]
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West Antarctic ice loss influenced by internal climate variability and anthropogenic forcing
Read more of: West Antarctic ice loss influenced by internal climate variability and anthropogenic forcingRecent ice loss from the West Antarctic Ice Sheet has been caused by ocean melting of ice shelves in the Amundsen Sea. Eastward wind anomalies at the shelf break enhance […]
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A rare observation of group prey processing in wild leopard seals (Hydrurga leptonyx)
Read more of: A rare observation of group prey processing in wild leopard seals (Hydrurga leptonyx)Cooperative feeding is often observed among predators with strong social bonds; however, it is unexpected in solitary predators. During 2016, several mass predation events were witnessed in St Andrews Bay […]
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Compensating Changes in the Penetration Depth of Pulse-Limited Radar Altimetry Over the Greenland Ice Sheet
Read more of: Compensating Changes in the Penetration Depth of Pulse-Limited Radar Altimetry Over the Greenland Ice SheetChanges in firn properties affect the shape of pulse-limited radar altimeter echoes acquired over the polar ice sheets. We apply a waveform deconvolution model to CryoSat-2 low-resolution mode echoes to […]
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Rapid decline of total Antarctic sea ice extent during 2014–16 controlled by wind-driven sea ice drift
Read more of: Rapid decline of total Antarctic sea ice extent during 2014–16 controlled by wind-driven sea ice driftBetween 2014 and 2016 the annual mean total extent of Antarctic sea ice decreased by a record, unprecedented amount of 1.6 3 106 km2, the largest in a record starting […]
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Delivering sustained, coordinated and integrated observations of the Southern Ocean for global impact
Read more of: Delivering sustained, coordinated and integrated observations of the Southern Ocean for global impactThe Southern Ocean is disproportionately important in its effect on the Earth system, impacting climatic, biogeochemical and ecological systems, which makes recent observed changes to this system cause for global […]
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Short-term fluctuations in heavy metal concentrations in Antarctic snow
Read more of: Short-term fluctuations in heavy metal concentrations in Antarctic snowHeavy metal variations in polar ice cores may reflect changes in global airborne pollution1. Reported profiles from Antarctica1–3 and Greenland4, where sampling resolution was normally larger than a year, have […]
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First remote sensing of the plasmapause by terrestrial myriametric radiation
Read more of: First remote sensing of the plasmapause by terrestrial myriametric radiationThe Earth’s plasmapause is a source of natural radio emission in the myriametric wavelength range (λvac∼10 km) and several mechanisms have been proposed for its generation. One such theory advocates […]