Quiet night Arctic ionospheric D region characteristics
VLF radio propagation recordings are used to determine the characteristics of the nighttime polar lower D region of the ionosphere. Recordings of both VLF phase and amplitude in the Arctic […]
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Read more of: Quiet night Arctic ionospheric D region characteristics
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Polar stratospheric clouds satellite observations, processes, and role in ozone depletion
Read more of: Polar stratospheric clouds satellite observations, processes, and role in ozone depletionPolar stratospheric clouds (PSCs) play important roles in stratospheric ozone depletion during winter and spring at high latitudes (e.g., the Antarctic ozone hole). PSC particles provide sites for heterogeneous reactions […]
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Movements and diving behaviour of white-chinned petrels: Diurnal variation and implications for bycatch mitigation
Read more of: Movements and diving behaviour of white-chinned petrels: Diurnal variation and implications for bycatch mitigation1. Many seabirds dive to forage, and the ability to use this hunting technique varies according to such factors as morphology, physiology, prey availability, and ambient light levels. Proficient divers […]
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Intra-specific variation in lichen secondary compounds across environmental gradients on Signy Island, maritime Antarctic
Read more of: Intra-specific variation in lichen secondary compounds across environmental gradients on Signy Island, maritime AntarcticLichens produce various carbon-based secondary compounds (CBSCs) in response to abiotic conditions and herbivory. Although lichen CBSCs have received considerable attention with regard to responses to UV-B exposure, very little […]
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Two-timescale response of a large Antarctic ice shelf to climate change
Read more of: Two-timescale response of a large Antarctic ice shelf to climate changeA potentially irreversible threshold in Antarctic ice shelf melting would be crossed if the ocean cavity beneath the large Filchner–Ronne Ice Shelf were to become flooded with warm water from […]
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Local and remote influences on the heat content of Southern Ocean mode water formation regions
Read more of: Local and remote influences on the heat content of Southern Ocean mode water formation regionsThe Southern Ocean (SO) is a crucial region for the global ocean uptake of heat and carbon. There are large uncertainties in the observations of fluxes of heat and carbon […]
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Evidence for a grounding line fan at the onset of a basal channel under the ice shelf of Support Force Glacier, Antarctica, revealed by reflection seismics
Read more of: Evidence for a grounding line fan at the onset of a basal channel under the ice shelf of Support Force Glacier, Antarctica, revealed by reflection seismicsCurvilinear channels on the surface of an ice shelf indicate the presence of large channels at the base. Modelling studies have shown that where these surface expressions intersect the grounding […]
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Gravity effect of Alpine slab segments based on geophysical and petrological modelling
Read more of: Gravity effect of Alpine slab segments based on geophysical and petrological modellingIn this study, we present an estimate of the gravity signal of the slabs beneath the Alpine mountain belt. Estimates of the gravity effect of the subducting slabs are often […]
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Warming impacts potential germination of non-native plants on the Antarctic Peninsula
Read more of: Warming impacts potential germination of non-native plants on the Antarctic PeninsulaThe Antarctic Peninsula is under pressure from non-native plants and this risk is expected to increase under climate warming. Establishment and subsequent range expansion of non-native plants depend in part […]
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Age‐depth stratigraphy of Pine Island Glacier inferred from airborne radar and ice‐core chronology
Read more of: Age‐depth stratigraphy of Pine Island Glacier inferred from airborne radar and ice‐core chronologyUnderstanding the contribution of the West Antarctic Ice Sheet (WAIS) to past and future sea level has been a major scientific priority over the last three decades. In recent years, […]
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Ventilation of the abyss in the Atlantic sector of the Southern Ocean
Read more of: Ventilation of the abyss in the Atlantic sector of the Southern OceanThe Atlantic sector of the Southern Ocean is the world’s main production site of Antarctic Bottom Water, a water-mass that is ventilated at the ocean surface before sinking and entraining […]
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ULF wave driven radial diffusion during geomagnetic storms: A statistical analysis of Van Allen Probes observations
Read more of: ULF wave driven radial diffusion during geomagnetic storms: A statistical analysis of Van Allen Probes observationsThe impact of radial diffusion in storm time radiation belt dynamics is well‐debated. In this study we quantify the changes and variability in radial diffusion coefficients during geomagnetic storms. A […]