Found 14065 items
20 October, 2025 by Carlos Martin Garcia, Tom Jordan
Radio-echo sounding (RES) has revealed an internal architecture within both the West and East Antarctic ice sheets that records their depositional, deformational and melting histories. Crucially, RES-imaged internal-reflecting horizons, tied…19 October, 2025 by Kaitlin Naughten
The world's oceans and their biodiversity are undergoing change driven by climate change and anthropogenic impacts such as fishing. The Kerguelen Plateau is a biodiversity hotspot with many endemic fish…17 October, 2025 by Nigel Meredith, Sarah Glauert
The Combined Release and Radiation Effects Satellite (CRRES) observed the response of the Van Allen radiation belts to peak solar activity within solar cycle 22. This study analyses relativistic and…15 October, 2025 by Ingrid Cnossen
Climate change is inducing a global atmospheric contraction above the tropopause (~10 km), leading to systematic decrease in neutral air density. The impact of climate change on small meteoroids has…Read more on Century-scale effect of climate change on meteorite falls
15 October, 2025 by Richard Phillips
Light-based geolocation can be an effective tool for understanding movements and distributions of free-ranging seabirds, particularly during migrations and long-distance foraging trips. The light levels recorded by geolocators (global location…Read more on Quantifying the effect of time on geolocation accuracy in seabirds
15 October, 2025 by Dave Munday
The global ocean’s overturning circulation plays an important role in climate and climate variability through its transport of heat, freshwater and nutrients. As part of this three-dimensional overturning circulation, dense…Read more on Aspects of the Global Thermohaline Circulation in the Absence of Wind Forcing
14 October, 2025 by Thomas Bauska
Gypsum and marls from the 15 cycles of the Messinian Yesares Member in the Sorbas Basin, SE Spain, were analysed using a multi-isotope approach to reconstruct palaeo-hydrological conditions of the…14 October, 2025 by Oliver Marsh
The stability of the Antarctic Ice Sheet depends on ice flux into the ocean through major outlet glaciers, which is resisted by shear stresses in the lateral shear margins, both…13 October, 2025 by Alexandra Weiss
Coupled Numerical Weather Prediction (NWP) models have only recently been implemented for short-term environmental prediction and both challenges and benefits are evident in polar regions. Their simulation of surface exchange…Read more on Rapid Summertime Sea Ice Melt in a Coupled Numerical Weather Prediction System
13 October, 2025 by Alexander Brearley, Kate Hendry
The flux of nutrients from continents to the oceans sustains oceanic primary productivity and is a fundamental component of the carbon cycle. In most regions of the world's oceans primary…9 October, 2025 by Andrew Orr, Ella Gilbert, Siddharth Gumber, Tony Phillips
Antarctica's weather and climate have global impacts, influencing weather patterns, ocean currents and sea levels worldwide. However, Antarctica is vast and complex, and the atmospheric processes that govern its climate…9 October, 2025 by Peter Convey
Maritime Antarctica experiences less extreme environmental conditions than much of the Antarctic continent and has further been impacted by considerable warming in recent decades. While inventories exist of macroscopic Antarctic…8 October, 2025 by Irene Malmierca Vallet, Louise Sime, Rahul Sivankutty, Sentia Goursaud
The Last Interglacial (LIG) period, approximately 130 000 to 115 000 years ago, represents one of the warmest intervals of the past 800 000 years. Here, we simulate water isotopes in precipitation over…8 October, 2025 by Paul Holland, Yavor Kostov
The importance of Antarctic iceberg meltwater for the Southern Ocean has been a strong incentive to include Lagrangian icebergs in ocean and climate models. However, the modeled iceberg thickness has…Read more on Iceberg Grounding Enhances the Release of Freshwater on the Antarctic Continental Shelf
8 October, 2025
The seasonality of Arctic sea ice cover significantly influences heat, salt, buoyancy fluxes, ocean-ice stresses, and the potential and kinetic energy stored in the ocean mixed layer. This study examines…Read more on Variability of the Kinetic Energy in Seasonally Ice‐Covered Oceans
7 October, 2025 by David Pearce
Svalbard is host to a range of glacier types with different thermal regimes, behaviors and complex hydrological networks and landforms. Here, we hypothesize that the (H1) surge-type glaciers will host…Read more on Microbial Communities in Sediments From Different Landform Systems, Svalbard
7 October, 2025 by Xin Yang
Tropospheric ozone depletion events (ODEs) occurring in the Arctic spring are a unique photochemical phenomenon in which the boundary layer ozone drops rapidly to near-zero levels. However, the criterion for…6 October, 2025 by Oliver Marsh
Full-thickness ice shelf fractures, known as rifts, create tabular icebergs that can reduce ice shelf extent and thereby jeopardize overall marine ice sheet stability. Low confidence in the scientific understanding…6 October, 2025 by Claus-Dieter Hillenbrand, Xu Zhang
Between ~800 and 430 thousand years ago lukewarm interglacials were characterized by lower atmospheric CO2 levels and colder Antarctic temperatures than subsequent interglacials. The Southern Ocean is thought to have…Read more on Enhanced deep Southern Ocean stratification during the lukewarm interglacials
6 October, 2025 by Victoria Peck
The Antarctic Circumpolar Current (ACC) exerts substantial control on the physical, chemical, and biological properties of the Southern Ocean, playing a key role in modulating the global carbon cycle and…4 October, 2025 by Jenny Wong, Nigel Meredith
Numerical models of energetic electron behavior in the outer radiation belt require descriptions of the wave‐particle interactions across the inner magnetosphere. Quasilinear diffusion coefficients describe gyro‐resonant wave‐particle interactions over large…Read more on Occurrence Rates and Variability of Whistler‐Mode Waves in the Plasma Trough
3 October, 2025 by Lloyd Peck, Richard Phillips
Per- and polyfluoroalkyl substances (PFAS) are widespread environmental pollutants that can bioaccumulate in biota and cause a variety of adverse effects. Seabirds are useful bioindicators of pollutants in marine food…2 October, 2025 by Gaelle Veyssiere, Jeremy Wilkinson
The recent alignment of CryoSat-2 to maximise orbital coincidence with the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) over the Southern Ocean and Antarctica in July 2022, known as the…2 October, 2025 by Gaelle Veyssiere, Jeremy Wilkinson
For the first time, a comparison of altimetry-derived snow depth estimates between dual-frequency spaceborne and near-coincident multi-frequency airborne estimates is conducted using data from the recent under-flight of a CryoSat-2…1 October, 2025 by Robert Mulvaney
The Beyond EPICA Oldest Ice project is a European project that aims to retrieve a continuous ice core up to 1.5 Ma through deep drilling at Little Dome C (LDC), Antarctica.…Read more on Age, thinning and spatial origin of the Beyond EPICA ice from a 2.5D ice flow model
1 October, 2025 by Peter Convey
Additives such as stabilizers, plasticizers, and fillers are commonly used in relatively small amounts to enhance the structure of plastics. Notably, some of these additives, including moieties of compounds containing…1 October, 2025 by Andrew Orr
We show that low-level jets (LLJs) occurred in 11 out of 22 radiosonde profiles in late austral summer over the coastal region of the Amundsen Sea Embayment, with ten of…1 October, 2025 by Aanchal Jain, Clara Manno, Kevin Hughes
Microplastic release in Antarctica is an issue of increasing concern, despite the limited human presence in the region. This study estimates the annual release of microplastics from the wastewaters of…1 October, 2025 by Michael Meredith
Sea ice in the Southern Ocean substantially modifies atmosphere–ice–ocean fluxes of energy, freshwater, carbon, nutrients, and other important properties. It redistributes these quantities in space and time, modifies water masses…1 October, 2025 by Alexandra Weiss, Markus Frey, Romy Hall, Thomas Bracegirdle, Xin Yang
Polar Winter Climate and Processes: Towards Filling Knowledge Gaps in the Understanding of the Coupled Climate System Recordings: Over 110 participants registered for this hybrid workshop, from 18 countries representing…Read more on Why Polar Winter Climate and Processes? [Meeting Report]
1 October, 2025 by Alex Brisbourne, Ronan Agnew
Thwaites Glacier in West Antarctica has been identified as a route to destabilization of the whole West Antarctic Ice Sheet, potentially leading to several meters of sea‐level rise. However, future…1 October, 2025 by Michael Meredith
Changes in the hydrological cycle can affect ocean circulation and ventilation. Freshwater enters the ocean as meteoric water (MW; precipitation, river runoff, and glacial discharge) and sea ice meltwater (SIM).…1 October, 2025 by Mark Clilverd
Geomagnetically Induced Currents (GICs) in grounded, conducting infrastructure (e.g., power networks) represent an important space weather hazard. GICs are driven by the changing magnetic field at the Earth's surface. Due…1 October, 2025 by Michael Thorne
The Mekong River is experiencing dramatic hydrological and sediment transport changes, largely due to the development of hydropower dams, both on its mainstream and tributaries. We ask, “how well do…28 September, 2025 by Irene Malmierca Vallet, John Slattery, Louise Sime, Xu Zhang
Several general circulation models have now demonstrated the ability to simulate spontaneous millennial-scale oscillations that resemble Dansgaard–Oeschger (DO) events. It is often unclear how representative of DO events these simulations…26 September, 2025 by Paul Holland
Understanding long-term climate variability in the high latitudes of the Southern Hemisphere is critical due to the key role of the Southern Ocean in the global climate system. However, sparse…Read more on Dynamical reconstruction of Southern Ocean and Antarctic climate variability since 1700
26 September, 2025 by Floortje Van Den Heuvel
Aerosol–cloud interactions and ice production processes are important factors that influence mixed-phase cold-air outbreak (CAO) clouds and their contribution to cloud-phase feedback. Recent case studies of CAO events suggest that…25 September, 2025 by Gareth Chisham
Imagers that observe optical or ultraviolet emissions from the atmosphere are commonly used to identify and study ionospheric phenomena. These phenomena include the auroral oval, equatorial plasma bubbles, and traveling…Read more on Automated Identification of Auroral Luminosity Boundaries Using pyIntensityFeatures
24 September, 2025 by Irene Malmierca Vallet, Louise Sime
Given that the Arctic could be ice-free in summer within the next ten to twenty years, accurately predicting low-ice states is of crucial importance. Paleo-evidence shows that the strong orbitally-induced…23 September, 2025 by Alison Cleary
Understanding how species survive at their poleward limits of distribution is of interest in species conservation, particularly in light of global warming and predictions of shifting distributions of both predators…23 September, 2025 by Lloyd Peck, Peter Convey, Peter Fretwell
Snow algae form extensive blooms within Antarctica’s coastal snowpacks and are a crucial contributor to its scarce terrestrial ecosystems. There is limited knowledge about the factors that contribute to snow…23 September, 2025 by Andrew Orr, Scott Hosking, Kenza Tazi
Water resources from the Indus Basin sustain over 270 million people. However, water security in this region is threatened by climate change. This is especially the case for the upper…22 September, 2025 by Alistair Crame, Teal Riley
We present a new 1:500 000 geological map of Alexander Island of West Antarctica. The map, combined with recent detrital zircon analysis, defines an updated chronostratigraphy for the Fossil Bluff…Read more on The geology of Alexander Island (Antarctic Peninsula): a new 1:500 000 geological map
18 September, 2025 by Kate Hendry
This study investigates the relationship between the silicon (Si) isotopic composition of sponge skeletal silica (δ30SibSi) and seawater characteristics in sponge habitats, specifically the concentration of dissolved silicic acid and…Read more on Revisiting the silicon isotopic signal of sponge skeletons and its implications
17 September, 2025 by Gaelle Veyssiere
Arctic sea ice is projected to thin and reduce in extent significantly over the next century. Both sea ice and its overlying snow limit the amount of light that reaches…16 September, 2025 by Peisong Zheng, Thomas Bauska
The last deglaciation, ca. 17,000–11,000 years before present (yr BP), marks the most recent period of large-scale climate reorganization on Earth. However, the timing and spatial patterns of the initial…Read more on Early warming over the Southern Ocean during the last deglaciation
16 September, 2025
Greenland's fjords modulate exchanges between its outlet glaciers and the open ocean. Subglacial discharge and iceberg melt redistribute heat and salt in the fjord, modifying waters at glacier fronts and…Read more on Controls on Fjord Temperature Throughout Greenland in a Reduced‐Physics Model
16 September, 2025 by Simeon Hill, Susie Grant
Antarctic krill (Euphausia superba) is the central prey species in the Southern Ocean food web, supporting the largest and fastest-growing fishery in the region, managed by the Commission for the…15 September, 2025 by Peter Convey
Background/Objectives: We evaluated eukaryotic diversity in two cores obtained from abyssal sediments collected at depths of 4280 m and 4444 m in the equatorial Atlantic, between the Fernando de Noronha…15 September, 2025 by Simon Morley
The sub-Antarctic and polar fronts are features of the Antarctic Circumpolar Current that separates the South Atlantic and Southern Ocean. These fronts act as both a physical and physiological barrier…13 September, 2025 by Gareth Chisham
This work aims to characterize the ionospheric disturbances in the South America – Antarctic Peninsula sector due the impact of a X1.3 solar event. This flare occurred on 30 March…12 September, 2025 by Katrin Linse, Madeline Anderson, Philip Hollyman
A quarter of all marine methane, a potent greenhouse gas, is estimated to be hosted in Southern Ocean sediments. Climate change-induced ocean warming and ice shelf melting risk the stability…10 September, 2025
Parasite infections affect males and females differently across a wide range of species, often due to differences in immune responses. Generally, females tend to have stronger immune defences and lower…10 September, 2025 by Simon Morley
Understanding the risk of introduction of marine non-native species requires data on pathways, including the level of biofouling present on vessels, vessel operating profiles and maintenance regimes. This study presents…9 September, 2025 by Henry Burgess, James Kirkham, Kate Hendry, Kevin Hughes, Robert Larter, Susie Grant
Fossil-fuel burning is heating the planet with catastrophic consequences for its habitability and for the natural world on which our existence depends. Halting global warming requires rapid and deep decarbonization…4 September, 2025 by Elizabeth Boyse, Melody Clark, Victoria Peck
To date, environmental conditions have been enough to act as an effective barrier to prevent non-indigenous species from arriving and establishing in Arctic Canada. However, rapidly changing climatic conditions are…4 September, 2025
Peter Fretwell is a senior scientist in the Mapping and Geographic Information Centre, at the British Antarctic Survey. Peter has pioneered the use of satellite imagery to study polar wildlife…Read more on 5th anniversary focus: author Peter Fretwell on penguins and climate change
4 September, 2025 by Michael Thorne
The Mekong is amongst the most important rivers in the world with regard to biodiversity and livelihood. Over the last few decades, however, the river has experienced dramatic hydrological changes,…3 September, 2025 by Aidan Hunter, Amanda Burson, Andrew Meijers, Anna Belcher, Clara Manno, Dave Munday, Elaina Ford, Emma Boland, Povl Abrahamsen, Emma Young, Geraint Tarling, Gabriele Stowasser, Huw Griffiths, Hugh Venables, Alexander Brearley, Jennifer Freer, Jessica Richt, Kate Hendry, Katrin Linse, Laura Taylor, Madeline Anderson, Michael Meredith, Nadine Johnston, Petra ten Hoopen, Rachael Sanders, Ruta Hamilton, Ryan Saunders, Sarah Coombs, Sally Thorpe, Simeon Hill, Sophie Fielding
The export of elements (particularly carbon, nitrogen and phosphorus) from the Poles critically supports global marine biodiversity and major fisheries as well as the sequestration of atmospheric carbon to the…2 September, 2025 by Philip Trathan
Information on cetacean population status is vital for determining fisheries management strategies, especially where they overlap spatiotemporally and target the same organism. This study aims to quantify distribution and abundance…2 September, 2025 by Hugo Rodrigues Guimaro
Monitoring of seabird population size and demography has for decades relied on observer-based methods. While such methods have allowed the accumulation of extensive, standardized time series, while typically involving both…Read more on Opportunities and challenges for new technologies in seabird population monitoring
1 September, 2025 by David Pearce
Glacial landsystems are geomorphological records produced by glaciers that provide important insights into past and present glacier dynamics. Here, we present a snapshot of the diversity in glacier landsystems in…1 September, 2025 by Peter Convey
We evaluated the fungal diversity present in ornithogenically-influenced soils of the polyextreme Brazilian Archipelago of São Pedro and São Paulo, using a DNA metabarcoding approach. We detected 1,596,919 fungal DNA…1 September, 2025 by Peter Convey
Petroleum spills pose a significant threat to ecosystems due to the presence of hydrocarbons, the primary toxic components. Bioremediation, particularly using hydrocarbon-degrading bacteria, offers an eco-friendly solution for mitigating this…1 September, 2025 by John King
Endurance, one of the main vessels of the Imperial Trans-Antarctic Expedition of 1914–17, became stuck and eventually was crushed by sea ice, sinking to the bottom of the Weddell Sea;…Read more on The Role of the Weather in the Fate of Shackleton’s Endurance
1 September, 2025 by Dave Munday
Central to improving our knowledge of ocean temperature change on Antarctica’s continental shelf is a better understanding of how ocean circulation drives the onshore flux of warm deep waters across…1 September, 2025 by Matthew Lang
A coupled modeling framework is often used to forecast the near-Earth solar wind conditions. This consists of a coronal model for close to the Sun and a heliospheric model for…Read more on Using Solar Wind Data Assimilation Results to Drive Dynamic Solar Wind Models
28 August, 2025 by Subir Mandal, Tracy Moffat-Griffin
In this study, we have investigated short-period ( 1 hr) atmospheric gravity waves (AGWs) in the Arctic mesosphere-lower thermosphere (MLT) region during January of 2014, 2015, and 2016. We used…28 August, 2025 by Markus Frey
Blowing snow plays a key role in the surface mass and energy budgets of polar regions and can be a significant source of water vapor to the atmosphere. In this…28 August, 2025 by Ashley Bennison, Elizabeth Mackley, Elizabeth Holmes, Richard Phillips, Rosamund Hall, Sarah Manthorpe
Marine ecosystems face multiple human threats, and many species are declining. The wandering albatross Diomedea exulans, black-browed albatross Thalassarche melanophris and grey-headed albatross T. chrysostoma are categorised globally as Vulnerable,…26 August, 2025 by Dave Munday
At the Antarctic coast, ice shelves flow from the ice sheet and are vulnerable to future changes in sub-surface ocean temperatures at the southern margins. A better understanding of how…26 August, 2025 by Petra ten Hoopen
The Southern Ocean is central to global ocean mixing and climate regulation via its disproportionate uptake of human-induced heat and carbon dioxide, yet the underlying processes are still poorly understood.…Read more on SOOSmap: Your gateway to Antarctic data discovery
25 August, 2025 by Nigel Meredith
Plasmaspheric hiss is an incoherent, broadband, whistler-mode emission that is found primarily in the Earth’s dense plasmasphere and is believed to be largely responsible for the formation of the slot…Read more on Evolution of dayside chorus into nightside plasmaspheric hiss
25 August, 2025 by Xu Zhang
During the last glacial period, the iconic Greenland ice-core records provide evidence of interstadial warmings with various durations ranging from a century to millennia. However, whether differences in interstadial duration…22 August, 2025 by Geraint Tarling, Jennifer Freer
High‐latitude zooplankton can sequester millions of tons of carbon due to their seasonal migration from the surface ocean to depth, and their respiration and mortality during overwintering. This seasonal vertical…Read more on Seasonally migrating zooplankton strongly enhance Southern Ocean carbon sequestration
22 August, 2025 by Martin Collins
We present a genome assembly of an individual Borostomias antarcticus (large-eye snaggletooth; Chordata; Actinopteri; Stomiiformes; Stomiidae). The genome sequence has a total length of 909.23 megabases. Most of the assembly…20 August, 2025 by Elizabeth Pearmain, Richard Phillips, Victoria Warwick-Evans
Spatial segregation in at-sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch…16 August, 2025 by Alison McLaren, Louise Sime, Qinggang Gao
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…16 August, 2025 by Xu Zhang
Paleoclimate reconstructions suggest that clusters of volcanic eruptions may trigger sustained cooling events, but the underlying mechanisms and their potential dependence on the mean climate state remain poorly understood. Here,…Read more on State‐Dependent North Atlantic Response to Volcanic Eruption Clusters
16 August, 2025 by Gareth Chisham
The high-latitude ionosphere can be divided into three regions dominated by different types of coupling and characterized by distinctive behaviors. These are the polar cap, the auroral region, and the…Read more on The Impact of Adaptive High-Latitude Coordinates
15 August, 2025 by Peter Convey
Seabirds like little auks (Alle alle) transfer chemical elements to terrestrial environments through faeces and other biological material, enriching Arctic soils with nutrients, organic matter, and marine-derived contaminants. We quantified…13 August, 2025 by John Slattery
We assess near‐surface temperature and sea surface temperature trends in 8 seasonal forecast systems in the Copernicus Climate Change Service archive, over the common hindcast period (1993–2016). All but one…Read more on The Representation of Surface Temperature Trends in C3S Seasonal Forecast Systems
13 August, 2025 by Jeremy Wilkinson
A dual-modality sensor combining ground-penerating radar and electromagnetic induction for the measurement of sea ice thickness is proposed. Though inductive sensing alone is widely used for ice thickness measurement over…Read more on Simulation of the Measurement of Arctic Snow Thickness Using Ground-Penetrating Radar
11 August, 2025
Deleterious mutations are ubiquitous in natural populations and, when expressed, reduce fitness. However, the specific nature of these mutations and the ways in which they impact fitness remain poorly understood.…8 August, 2025 by Katrin Linse
Phylogeographic analyses have advanced our understanding of evolutionary processes in the deep sea, yet patterns of genetic variation and population divergence at abyssal depths remain poorly understood. The bivalve Ledella…5 August, 2025 by Josephine Anselin, Keith Makinson, Keith Nicholls, Paul Holland
This study examines the interplay between water column structure, tidal currents, and basal melting at a site beneath Ronne Ice Shelf, using a 3-year data set of oceanographic measurements, and…3 August, 2025 by Emma Young
The Southern Ocean today is a globally relevant sink for atmospheric carbon dioxide (CO2), where the biological uptake of carbon through primary productivity is largely controlled by widespread iron (Fe)…1 August, 2025 by Jo Cole, Kevin Hughes, Nadia Frontier
Reducing plastic pollution of the Antarctic environment is a priority for the Antarctic Treaty Consultative Meeting (ATCM) and Council of Managers of National Antarctic Programs (COMNAP). Polyester flags mounted on…1 August, 2025 by Alexandra Weiss, Carl Robinson, Maximilian Lowe, Nathan Fenney, Tom Jordan
Airborne investigations are a keystone for understanding the Antarctic environment across many scientific disciplines. Over the past decade and more, the use of drones has been proposed as a means…1 August, 2025 by Lloyd Peck, Nicholas Barrett
For osmoconforming organisms, prolonged exposure to reduced salinity requires an adjustment to intracellular osmolyte levels to ensure an osmotic balance is maintained between the cell and external sea water. However,…1 August, 2025 by Kenza Tazi
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…1 August, 2025 by Paul Holland
The Amundsen Sea Undercurrent, off West Antarctica, transports warm Circumpolar Deep Water onto the continental shelf, driving basal melting when it reaches the ice shelves through troughs. However, vertical heat…1 August, 2025 by Louise Sime, Matthew Chadwick
Antarctic sea-ice cover reached historically low levels in 2023, consistent with the simulated decrease in sea-ice extent in response to anthropogenic warming. Antarctic sea ice is closely linked to multiple…1 August, 2025 by Andrew Clarke
The metabolic theory of ecology (MTE) has been an important strand in ecology for almost a quarter of a century, renewing interest in the importance of body size and the…Read more on The contribution of metabolic theory to ecology