481 to 492 of 13980 results
A compilation is presented of impacts (interference and damage) realized on long-line telegraph and telephone systems across North America during the 13–16 May 1921 magnetic storm. Impacts occurred primarily during […]
Our knowledge of biogeographic patterns and processes in the deep sea has been limited by the lack of integrated datasets that cover its vast extent1. Here we analyse a new […]
Eastern Beringia (Alaska and western Yukon) is an extensive, high-latitude region of North America that remained largely unglaciated throughout the Quaternary. Consequently, its sedimentary deposits preserve long-term environmental records that […]
The interpretation of water isotope records in Antarctic ice cores is crucial for our understandingof past climate changes. Here we use novel water tracers in an ECHAM6‐wiso simulation to investigatemoisture […]
To effectively manage biological assemblages, a sound knowledge of the biodiversity is essential. The Southern Ocean shelf benthic assemblages are typically comprised of species, the names of which are shared […]
Inferring general biogeographic patterns in the sub-Antarctic region has been challenging due to the disparate geological origins of its islands and archipelagos—ranging from Gondwanan fragments to uplifted seafloor and more […]
Baleen whales are key marine predators that were heavily exploited throughout the 20th century, resulting in reductions in population size for many species. Whilst population recovery is evident for some […]
Locating the spawning grounds of Antarctic krill Euphausia superba is key to understanding their population dynamics and managing the commercial krill fishery. In the shelf waters of the Antarctic Peninsula […]
Colonization of remote ecosystems by new microorganisms poses a significant threat to the diversity and function of native microbial communities. In the polar regions, including Antarctica, airborne microbial communities are […]
Somatic Contiguous Hypermutations (CHM) are a popular variation operator used in artificial immune systems for optimisation tasks. Theoretical studies have shown that CHM operators can lead to considerable speed-ups in […]
Tabular iceberg calving reduces ice-shelf extent, affecting ocean circulation and ice-sheet stability. Here we present detailed observations of a rift on the Brunt Ice Shelf, East Antarctica, from 2017-2023 and […]
High Mountain Asia (HMA) holds the highest concentration of frozen water outside the polar regions, serving as a crucial water source for more than 1.9 billion people. Precipitation represents the […]