1309 to 1320 of 13949 results
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Antarctic ecosystems
Read more of: Antarctic ecosystemsTerrestrial environments of Antarctica include some of the most extreme on Earth, challenging the very existence of life itself. This article outlines briefly the geological and biological history of the […]
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Historical occurrence of Antarctic icebergs within mercantile shipping routes and the exceptional events of the 1890s
Read more of: Historical occurrence of Antarctic icebergs within mercantile shipping routes and the exceptional events of the 1890sA major consideration for maritime activity in the Southern Hemisphere is the northern limit of icebergs, or the Southern Ocean Limit Of Known Ice (SOLOKI). This analysis of historical reports […]
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Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems
Read more of: Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystemsDue to its persistence and potential ecological and health impacts, mercury (Hg) is a global pollutant of major concern that may reach high concentrations even in remote polar oceans. In […]
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Linear polarization signatures of atmospheric dust with the SolPol direct-sun polarimeter
Read more of: Linear polarization signatures of atmospheric dust with the SolPol direct-sun polarimeterDust particles in lofted atmospheric layers may present a preferential orientation, which could be detected from the resulting dichroic extinction of the transmitted sunlight. The first indications were provided relatively […]
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Measuring seismic attenuation in polar firn: method and application to Korff Ice Rise, West Antarctica
Read more of: Measuring seismic attenuation in polar firn: method and application to Korff Ice Rise, West AntarcticaWe present seismic measurements of the firn column at Korff Ice Rise, West Antarctica, including measurements of compressional-wave velocity and attenuation. We describe a modified spectral-ratio method of measuring the […]
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An unprecedented sea ice retreat in the Weddell Sea driving an overall decrease of the Antarctic sea-ice extent over the 20th century
Read more of: An unprecedented sea ice retreat in the Weddell Sea driving an overall decrease of the Antarctic sea-ice extent over the 20th centurySea-ice extent is predicted to decrease in a warming climate. However, despite global warming over the past century, total Antarctic sea ice remained relatively stable from 1979 until 2015, before […]
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The importance of cloud properties when assessing surface melting in an offline-coupled firn model over Ross Ice shelf, West Antarctica
Read more of: The importance of cloud properties when assessing surface melting in an offline-coupled firn model over Ross Ice shelf, West AntarcticaThe Ross Ice Shelf, West Antarctica, experienced an extensive melt event in January 2016. We examine the representation of this event by the HIRHAM5 and MetUM high-resolution regional atmospheric models, […]
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Southern limit of the Patagonian Ice Sheet
Read more of: Southern limit of the Patagonian Ice SheetThe southern limit of the Patagonian Ice Sheet at glacial maxima is poorly constrained due to a paucity of field data. This particularly applies to southern outlet glaciers of the […]
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Assessing the trophic ecology of Southern Ocean Myctophidae: the added value of DNA metabarcoding
Read more of: Assessing the trophic ecology of Southern Ocean Myctophidae: the added value of DNA metabarcodingLanternfishes (Myctophidae) are key components of mesopelagic fish communities globally. In the Southern Ocean, incomplete information on myctophid diets limits our understanding of their energetics, interactions and wider ecosystem impact. […]
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