Frozen in time
Studying ice chemistry may not sound very exciting – after all, isn’t ice just frozen water? Almost true, but glaciers and ice sheets, along with snow, contain traces of everything […]
13537 to 13548 of 14011 results
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Read more of: Frozen in time
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Understanding the past – climate history from Antarctica
Read more of: Understanding the past – climate history from AntarcticaAntarctic ice cores have become a unique and powerful resource for studies of climate change. They contain information on past climate, on forcing factors such as greenhouse gas concentrations, and […]
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The European Project for Ice Coring in Antarctica
Read more of: The European Project for Ice Coring in AntarcticaIce cores have provided many of the key pieces of evidence about past changes in climate and in forcing factors for climate. In particular, the core from Vostok (Antarctica) shows […]
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Signal variability in replicate ice cores
Read more of: Signal variability in replicate ice coresReplicate ice cores have been drilled about 10 m apart for the top 790 m of the ice sheet at Dome C, Antarctica. This provides an opportunity to examine inter-core […]
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Modeling past atmospheric CO2: results of a challenge
Read more of: Modeling past atmospheric CO2: results of a challengeThe models and concepts used to predict future climate are based on physical laws and information obtained from observations of the past. New paleoclimate records are crucial for a test […]
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Factors that influence freezing in the sub-Antarctic springtail Tullbergia antarctica
Read more of: Factors that influence freezing in the sub-Antarctic springtail Tullbergia antarcticaEffects of 12 biotic and abiotic factors on the freezing point of the sub-Antarctic springtail, Tullbergia antarctica, were investigated. Repeated cooling of individual springtails five times resulted in very similar […]
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Boluses: an effective method for assessing the proportions of cephalopods in the diet of albatrosses
Read more of: Boluses: an effective method for assessing the proportions of cephalopods in the diet of albatrossesThe method of collecting and analyzing boluses to characterize the cephalopod diet of albatrosses has been used in many diet studies. However, no study has validated this method. We compared […]
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Numerical simulations of katabatic jumps in coats land, Antartica
Read more of: Numerical simulations of katabatic jumps in coats land, AntarticaA non-hydrostatic numerical model, the Regional Atmospheric Modeling System (RAMS), has been used to investigate the development of katabatic jumps in Coats Land, Antarctica. In the control run with a […]
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Provenance and magmatic-metamorphic evolution of a Variscan island-arc complex: constraints from U-Pb dating, petrology, and geospeedometry of the Kyffhauser crystalline complex, central Germany
Read more of: Provenance and magmatic-metamorphic evolution of a Variscan island-arc complex: constraints from U-Pb dating, petrology, and geospeedometry of the Kyffhauser crystalline complex, central GermanyThe Kyffhäuser Crystalline Complex, Central Germany, forms part of the Mid-German Crystalline Rise, which is assumed to represent the Variscan collision zone between the East Avalonian terrane and the Armorican […]
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Climatically driven fluctuations in Southern Ocean ecosystems
Read more of: Climatically driven fluctuations in Southern Ocean ecosystemsDetermining how climate fluctuations affect ocean ecosystems requires an understanding of how biological and physical processes interact across a wide range of scales. Here we examine the role of physical […]
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Tardigrade fauna of the South Sandwich Islands, maritime Antarctic
Read more of: Tardigrade fauna of the South Sandwich Islands, maritime AntarcticThe maritime Antarctic South Sandwich Islands are an isolated oceanic archipelago of volcanic origin lying between 56º18’S, 27º34’W and 59º27’S, 27º22’W. All the islands are of recent origin (maximum ages […]
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The International Trans-Antarctic Scientific Expedition (ITASE): an overview
Read more of: The International Trans-Antarctic Scientific Expedition (ITASE): an overviewFrom its original formulation in 1990 the International Trans-Antarctic Scientific Expedition (ITASE) has had as its primary aim the collection and interpretation of a continent-wide array of environmental parameters assembled […]