Found 14035 items
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
19 September, 2025 by Dominic Hodgson, Stephen Roberts, Tony Phillips
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are a group of temperature-sensitive membrane lipids found in bacteria that have been widely used in palaeo-temperature reconstruction. Despite recent advances in analytical methods,…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 Andrew Orr, David Goodger, Douglas Boyle, Ed King, Hamish Pritchard
Mountain glaciers provide an important service in sustaining river flows for large populations downstream of High Mountain Asia (HMA) but these glaciers are retreating and the future of this water…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…9 September, 2025 by Thomas Bracegirdle
The Amundsen Sea is dominated by a quasi-stationary low-pressure region, the Amundsen Sea Low (ASL). ASL variability impacts on regional weather and the basal melting of ice shelves, an important…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
1 September, 2025 by Thomas Bauska
Numerous evaporative saline playa lakes exist within the Thar Desert in Northwest India. Some are active seasonally, whereas others are dry and preserve up to several meters of sedimentary deposits.…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,…27 August, 2025 by Xu Zhang
Heinrich Stadial 1 (HS1; ~17.5-15 thousand years before present) was characterized by a weakening of the Atlantic Meridional Overturning Circulation (AMOC) that resulted in large hydroclimate changes across the global…26 August, 2025 by Chester Sands
The phylum Echinodermata is a familiar constituent of almost every marine environment and a predominant portion of the fauna in some regions. As with most marine taxa, the clade is…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…22 August, 2025 by Emma Pearce, Ronan Agnew
The grounding zone of a marine‐terminating glacier, where ice begins to float, is a key control on glacier stability and ice discharge. Seismic deployments are a powerful means of studying…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
1 August, 2025 by Andrew Orr
PCAPS Open Session: Forecast value cycles for Polar Research Operations: A workshop was held as part of the annual Steering Group meeting of the WMO World Weather Research Program project…Read more on Toward Strengthened Forecasting Services for Polar Regions [Meeting Report]
1 August, 2025 by Steve Colwell
In 2024, atmospheric conditions over Antarctica exhibited significant anomalies, and were marked by major surface and stratospheric warming and pressure fluctuations. The first half of the year (January–June) featured persistent…Read more on State of the Climate in 2024. Antarctica and the Southern Ocean
30 July, 2025 by Xu Zhang
Projections of tropical rainfall under global warming remain highly uncertain, largely because of an unclear climate response to a potential weakening of the Atlantic meridional overturning circulation (AMOC). Although an…Read more on Tropical response to ocean circulation slowdown raises future drought risk
29 July, 2025 by Chester Sands, Peter Convey, Will Goodall-Copestake
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…29 July, 2025 by Peter Convey
In the light of the considerable global climatic changes observed over recent decades, and particularly their magnification in the western Antarctic Peninsula (WAP) region (maritime Antarctic), it is important to…Read more on New Collembola occurrence records from the western Antarctic Peninsula
28 July, 2025 by Kaitlin Naughten, Katherine Turner, Paul Holland
Increased ice shelf melting caused by ocean warming in the Amundsen Sea is likely committed for the coming century. However, the drivers behind this projected ocean warming are not yet…25 July, 2025 by Martin Collins
We present a genome assembly from an individual female Electrona antarctica (the Antarctic lanternfish; Chordata; Actinopterigii; Myctophiformes; Myctophidae). The genome sequence has a total length of 1,427.40 megabases. Most of…25 July, 2025
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…Read more on The Impact of the May 1921 Superstorm on American Telecommunication Systems
25 July, 2025 by Petra ten Hoopen
Understanding how environmental and ecological factors shape variability in soil-associated microbial communities is a complex problem, particularly on islands, which contain a wide range of diverse and unique geology, fauna,…24 July, 2025 by Oliver Marsh, Robert Arthern
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…Read more on Ocean tides trigger ice shelf rift growth and calving
24 July, 2025 by Danielle Buss, Gabriele Stowasser, Jennifer Jackson, Michael Dunn, Will Goodall-Copestake
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…Read more on Historical Niche Partitioning of Baleen Whales in the Western South Atlantic
24 July, 2025 by Geraint Tarling
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…23 July, 2025 by Dieter Tetzner
The pattern of atmospheric and climate changes recorded by coastal Antarctic ice core sites and the processes they illustrate highlight the importance of multiproxy studies on ice cores drilled from…23 July, 2025 by Chester Sands
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…Read more on Spatiotemporal faunal connectivity across global seafloors
21 July, 2025 by Andrew Orr, Scott Hosking, Marc Girona-Mata, Tony Phillips
This study introduces a novel approach to post-processing (i.e. downscaling and bias-correcting) reanalysis-driven regional climate model daily precipitation outputs that can be generalised to ungauged mountain locations by leveraging sparse…18 July, 2025 by Peter Convey
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…Read more on Tracing the biogeographic history of the world’s most isolated insular floras
18 July, 2025 by David Pearce, Peter Convey
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…Read more on Daily turnover of airborne bacterial communities in the sub-Antarctic
18 July, 2025 by Federico Covi
Refreezing is a critical component of the mass balance of glaciers in Svalbard, yet the processes and changes under a warming climate are not fully understood. Here, we investigate changes…17 July, 2025 by James Kirkham
Based on a regional 3D seismic data set and a small high‐resolution 3D seismic data set (~40 km 2 ) we have mapped a buried glacially eroded trough on the…17 July, 2025 by Jasmine Lee, Kevin Hughes, Peter Convey
This report presents outcomes from the international workshop "Essential Biodiversity Variables (EBV) Framework for Terrestrial Antarctic and Sub-Antarctic Ecosystems," held in Cambridge, UK, from 18–20 September 2024, with significant online…16 July, 2025
This thesis addresses several key questions aimed at understanding host-microbial and host-helminth dynamics within Southern Ocean penguin populations. The overall thesis aim is to characterise microbial and helminth diversity in…16 July, 2025 by Tracy Moffat-Griffin
The mesosphere and lower thermosphere (MLT) comprise a highly variable region that forms the transition region between the middle and upper atmosphere. The variability of this region is driven by…16 July, 2025 by Claire Allen, Dieter Tetzner, Liz Thomas
In recent decades, the Southern Hemisphere westerly winds have strengthened and migrated south, attributed to greenhouse gas emissions and stratospheric ozone depletion. However, the onset and acceleration of these drivers…16 July, 2025 by Jeremy Wilkinson
Antarctic sea ice has seen recent rapid declines in extent, but it remains unclear whether this isaccompanied by thinning. Due to the relative abundance and complexity of overlying snow on…16 July, 2025 by Xu Zhang
The interhemispheric relation of deep-water ventilation and surface-ocean productivity may have played a prominent role in past atmospheric CO2 regulation. However, how these processes vary on orbital-millennial timescales remains poorly…16 July, 2025 by Maximilian Lowe, Tom Jordan, Teal Riley
The Antarctic Peninsula is a unique sector of the circum-Pacific continental margin arc where subduction ceased due to a series of ridge-trench collisions, preserving a relatively un-deformed magmatic arc. This…16 July, 2025 by Teal Riley
The Antarctic Peninsula preserves a long history of Late Paleozoic and Mesozoic magmatism that reflects dynamic processes along the southwestern Gondwanan convergent margin. Granitoid magmatism is widespread across the Peninsula…Read more on Age and geology of granitoids in northeast Palmer Land, Antarctic Peninsula
15 July, 2025 by Andy Smith, David Vaughan
Since the 1990s, satellites have shown accelerating ice-loss driven by ocean change in the neighbouring glacier basins that drain more than one-third of West Antarctica into the Amundsen Sea. The…15 July, 2025 by Joseph Ulanowski
A new modular multi-sensor aerological dropsonde system for high and fast-flying research aircraft has been developed for studying atmospheric processes. This new system allows us to drop release containers with…Read more on A new versatile dropsonde for atmospheric soundings – the KITsonde
14 July, 2025 by Kaitlin Naughten
The Amundsen Sea region in Antarctica is a critical area for understanding future sea level rise due to its rapidly changing ice dynamics and significant contributions to global ice mass…13 July, 2025
Despite growing awareness of the importance of researcher diversity, barriers to inclusion and equity persist in science and at academic conferences. As hosts of the 37th International Ethological Congress, “Behaviour…