253 to 264 of 14118 results
The detrimental impacts of human activity in Antarctica can pose significant threats to the continent’s ecosystems and diversity. Various pollutants have been detected in Antarctica, including hydrocarbon compounds derived from […]
While the processes controlling pore closure are broadly understood, the physical mechanisms driving the associated elemental fractionation remains ambiguous. Previous studies have shown that the pore closure process leads to […]
The calcite of fossil brachiopods is a prime target for the reconstruction of palaeoenvironmental conditions through much of the Phanerozoic, utilizing a growing number of isotopic and chemical proxies. However, […]
Dissolved iron (dFe) and manganese (dMn) are essential micronutrients required in marine primary production; however, their low availability limits productivity and impacts the efficiency of the biological carbon pump. Therefore, […]
We investigate the neutral wind and semidiurnal tide (SDT) variations in the mesosphere and lower thermosphere (MLT) during two consecutive minor Southern Hemisphere (SH) sudden stratospheric warmings (SSWs) that occurred […]
Snow and glacier algal blooms are increasingly well documented in the Northern Hemisphere, but their diversity and ecology in Antarctic regions remains poorly understood. Here, we present the outcomes of […]
As new airborne surveys of the Antarctic ice sheet are completed, the ever-enlarging survey dataset provides an opportunity for generating new ‘Bedmaps’ of ice thickness, surface and bed topography. These […]
Understanding lineage divergence is crucial for uncovering cryptic biodiversity. Adaptive divergence, geographic isolation and life-history traits drive speciation in heterogeneous environments. The gentoo penguin complex (Pygoscelis spp.), historically treated as […]
Ocean-driven basal melting of Antarctic ice shelves plays an important role in the mass loss of the Antarctic Ice Sheet. Ice shelf cavity-resolving ocean models are a valuable tool for […]
Thwaites Glacier in West Antarctica is losing ice rapidly and is considered especially vulnerable to retreat, but predictions of its future remain limited by uncertainties about its subglacial properties. Here […]
Giant Antarctic iceberg calving is projected to increase with climate change, affecting ocean circulation, nutrient supply, and carbon cycling. These icebergs can stimulate primary production and influence Southern Ocean carbon […]
Since the invention of echosounders and sonars in the early twentieth century, the applications of active-acoustic instruments have expanded from single-frequency range detection and fisheries stock estimates to wider explorations […]