Found 13319 items
15 July, 2024 by James Smith
The Northeast Greenland Ice Stream (NEGIS) is the main artery for ice discharge from the northeast sector of the Greenland Ice Sheet (GrIS) to the North Atlantic. Understanding the past,…Read more on The deglacial history of 79N glacier and the Northeast Greenland Ice Stream
14 July, 2024 by Dominic Hodgson
Here, we explore the profound impact of the Tasmanian Aboriginal (Palawa) people on Tasmanian landscapes by examining a 22,000-year record of landscape change from Lake Selina in western Tasmania, Australia.…Read more on Reconciling 22,000 years of landscape openness in a renowned wilderness
11 July, 2024 by Chester Sands, Felipe Simoes, Peter Convey
The terrestrial fauna of Antarctica consists of a limited number of species, notably insects, small crustaceans and other micro-invertebrates. Over long periods of evolutionary isolation, these organisms have developed varying…9 July, 2024 by Aaron Hendry, Alexander Lozinski, Mark Clilverd
High energy resolution DEMETER satellite observations from the Instrument for the Detection of Particle (IDP) are analyzed during an electromagnetic ion cyclotron (EMIC)-induced electron precipitation event. Analysis of an Interval…5 July, 2024 by Claus-Dieter Hillenbrand
Detrital smectite is a ubiquitous clay mineral in marine sediments and has a variable total Fe, Al, and Mg composition depending on the source, i.e., bedrock or unconsolidated sedimentary strata,…4 July, 2024 by Claus-Dieter Hillenbrand, James Smith, Robert Larter
One of Earth’s most fundamental climate shifts – the greenhouse-icehouse transition 34 Ma ago – initiated Antarctic ice-sheet build-up, influencing global climate until today. However, the extent of the ice…Read more on Ice sheet–free West Antarctica during peak early Oligocene glaciation
4 July, 2024 by Alistair Crame
The superfamily Stromboidea is a clade of morphologically distinctive gastropods which include the iconic Strombidae, or ‘true conchs’. In this study, we present the most taxonomically extensive phylogeny of the…4 July, 2024 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…3 July, 2024 by Gareth Chisham
The ground-based, high-frequency radars of the Super Dual Auroral Radar Network (SuperDARN) observe backscatter from ionospheric field-aligned plasma irregularities and features on the Earth's surface out to ranges of several…Read more on Multi‐Frequency SuperDARN Interferometer Calibration [Method]
3 July, 2024
Background - Assessing the historical dynamics of key food web components is crucial to understand how climate change impacts the structure of Arctic marine ecosystems. Most retrospective stable isotopic studies…Read more on Insights on long-term ecosystem changes from stable isotopes in historical squid beaks
2 July, 2024 by Peter Convey
We assessed soil fungal and fungal-like diversity using metabarcoding in ornithogenically influenced soils around nests of the bird species Phalacrocorax atriceps, Macronectes giganteus, Pygoscelis antarcticus, and Pygoscelis adelie on the…2 July, 2024 by Huw Griffiths, Rowan Whittle, Tasnuva Khan
Predator-prey interactions in marine ecosystems control population sizes, maintain species richness, and provide intermediate disturbance. Such ecosystem structuring interactions may be rare in Antarctic epibenthic communities, which are unique among…1 July, 2024 by Jasmine Lee
Conserving landscapes used by multiple stakeholder groups requires understanding of what each stakeholder values. Here we employed a semi-structured, participatory approach to identify features of value in the terrestrial Antarctic…Read more on Conservation features of the terrestrial Antarctic Peninsula
1 July, 2024 by Alastair Wilson, Claire Waluda, Kate Owen, Martin Collins, Meghan Goggins, Philip Hollyman, Philip Trathan
The sub-Antarctic island of South Georgia is surrounded by highly productive waters, supporting dense aggregations of Antarctic krill (Euphausia superba), a vital food source for globally important seabird and marine…1 July, 2024 by Richard Phillips
Procellariiform seabirds can accumulate high levels of plastic in their gastrointestinal tracts, which can cause physical damage and potentially provides a contamination route for trace elements. We examined plastic ingestion…1 July, 2024 by Huw Griffiths
No other group of animals typifies the uniqueness of Antarctic life more than Pycnogonida (sea spiders), with 20% of all known species found in the Southern Ocean, and 64% of…Read more on Antarctica is less isolated with increasing depth – evidence from pycnogonids
1 July, 2024 by Lloyd Peck
Climate change is known to affect the distribution and composition of species, but concomitant alterations to functionally important aspects of behaviour and species-environment relations are poorly constrained. Here, we examine…1 July, 2024 by Claire Allen, Dieter Tetzner
Here, we summarize the diatom research topics and applications that have the broadest relevance and importance for Antarctic studies. From the Southern Ocean we focus on biogeography, sea surface temperature…29 June, 2024 by Irene Malmierca Vallet, John Slattery, Louise Sime
Greenland ice core records feature Dansgaard–Oeschger (D-O) events, which are abrupt warming episodes followed by gradual cooling during ice age climate. The three climate models used in this study (CCSM4,…29 June, 2024 by Cameron Fox-Clarke, Camille Toscani, Claire Stainfield, Jaume Forcada
Immune defenses are crucial for survival but costly to develop and maintain. Increased immune investment is therefore hypothesized to trade-off with other life-history traits. Here, we examined innate and adaptive…29 June, 2024 by Caroline Holmes, John Turner, Thomas Caton Harrison, Tony Phillips, Tylei Reeves-Francois
We investigate an unusual extensive ice-free feature (EIF) within the pack ice that developed in the central Weddell Sea in December 1980 on the edge of the multi-year sea ice…28 June, 2024 by Kate Hendry
In the Arctic and subarctic oceans, the relatively low supply of silicon (compared to other nutrients) can make it limiting for the growth of diatoms, a fundamental building block of…Read more on Detrital input sustains diatom production off a glaciated Arctic coast
28 June, 2024 by Nigel Meredith, Richard Horne, Sarah Glauert, Thomas Daggitt
The plasma density is one of the most fundamental quantities of any plasma yet measuring it in space is exceptionally difficult when the density is low. Measurements from particle detectors…28 June, 2024 by Alexander Whittle, Dominic Hodgson
Radiocarbon dating of basal peats has been a key factor in determining minimum ages for deglaciation on sub-Antarctic islands. On Marion Island, peat bogs dominate the landscape below 300 m a.s.l.,…25 June, 2024 by Alexander Bradley
Marine ice sheets are highly sensitive to submarine melting in their grounding zones, where they transition between grounded and floating ice. Recently published studies of the complex hydrography of grounding…Read more on Tipping point in ice-sheet grounding-zone melting due to ocean water intrusion
24 June, 2024 by Ben Robinson, David Seaton, Kevin Hughes, Simon Morley
Shallow water Antarctic marine macroepifaunal assemblages live in one of the most naturally disturbed marine environments due to the impact of icebergs scouring the seafloor. They are, however, amongst the…Read more on Measuring the impact of wharf construction on the Antarctic Benthos
24 June, 2024 by David Barnes
The seabed of the Antarctic continental shelf hosts most of Antarctica's known species, including taxa considered indicative of vulnerable marine ecosystems (VMEs). Nonetheless, the potential impact of climatic and environmental…Read more on Variability in Zoobenthic Blue Carbon storage across a Southern Polar Gradient
24 June, 2024 by Xin Yang
The acidity of sea ice and snow plays a key role in the chemistry of the cryosphere; an important example lies in the photochemical catalytic release of reactive bromine in…Read more on Freezing-induced acidification of sea ice brine
24 June, 2024 by Claire Allen, Victoria Peck
Today, South Georgia is heavily glaciated with glaciers often terminating into the ocean via steep-sided bay and U-shaped valleys. However, due to a low number of well-dated climate records from…Read more on Cumberland Bay (South Georgia) glacial evolution during the Holocene
22 June, 2024 by Peter Convey
This study characterized cultivable fungi present in sediments obtained from Boeckella Lake, Hope Bay, in the north-east of the Antarctic Peninsula, and evaluated their production of enzymes and biosurfactants of…21 June, 2024 by Andrew Orr, Ella Gilbert, Ruth Price, Thomas Bracegirdle, Tony Phillips
The Ross Ice Shelf, West Antarctica, experienced an extensive melt event in January 2016. We examine the representation of this event by the HIRHAM5 and MetUM high-resolution regional atmospheric models,…18 June, 2024 by Claire Allen, Victoria Peck
The subantarctic islands of South Georgia are located in the Southern Ocean, and they may be sensitive to future climate warming. However, due to a lack of well-dated subantarctic palaeoclimate…15 June, 2024 by Alistair Monteath
When tracing vegetation dynamics over long timescales, obtaining enough floristic information to gain a detailed understanding of past communities and their transitions can be challenging. The first high-resolution sedimentary DNA…14 June, 2024 by Markus Frey
Novel observations of aerosol and clouds by means of ground-based remote sensing have been performed in Antarctica over the Ekström ice shelf on the coast of Dronning Maud Land at…14 June, 2024 by Robert Mulvaney
The European Beyond EPICA – Oldest Ice consortium is currently conducting an ice core drilling project at Little Dome C (LDC) in Antarctica with the aim of retrieving a continuous…13 June, 2024 by Amanda Burson, Cecilia Liszka, Clara Manno, Povl Abrahamsen, Geraint Tarling, Kate Hendry, Natasha Lucas, Sally Thorpe
Large icebergs (>20 km long) are responsible for most of the freshwater discharged into the Southern Ocean. We report on in situ and satellite observations made during the break-up phase around…12 June, 2024 by Joanne Johnson
Unambiguous identification of past episodes of ice sheet thinning below the modern surface and grounding line retreat inboard of present requires recovery and exposure dating of subglacial bedrock. Such efforts…11 June, 2024 by Dorothea Moser, Liz Thomas
Melting polar and alpine ice sheets in response to global warming pose ecological and societal risks but will also hamper our ability to reconstruct past climate and atmospheric composition across…Read more on Melt-Affected Ice Cores for Polar Research in a Warming World
11 June, 2024 by Kate Hendry
The stable silicon isotopic composition of siliceous sponge skeletal elements, spicules, forms a potential proxy for past dissolved silicon (DSi) concentrations of bottom waters. Field-based studies have shown that there…Read more on Spicule morphology impacts stable silicon isotopic composition of sponge archives
8 June, 2024 by Jack Atkinson, Johnathan Ross, Richard Horne, Sarah Glauert
As the number of satellites on orbit grows it is increasingly important to understand their operating environment. Physics-based models can simulate the behavior of the Earth's radiation belts by solving…7 June, 2024 by Thomas Bauska
Beneath the surface of Antarctica lies a near perfect record of changes in the atmosphere composition over hundreds of thousands of years. This unique archive allows us to reconstruct atmospheric…5 June, 2024 by Claus-Dieter Hillenbrand, Robert Larter
Extensive ice coverage largely prevents investigations of Antarctica’s unglaciated past. Knowledge about environmental and tectonic development before large-scale glaciation, however, is important for understanding the transition into the modern icehouse…Read more on A large-scale transcontinental river system crossed West Antarctica during the Eocene
4 June, 2024 by Andrew Clelland, Gareth Marshall
Reanalysis datasets provide a continuous picture of the past climate for every point on Earth. They are especially useful in areas with few direct observations, such as Siberia. However, to…3 June, 2024 by Alexander Bradley, Rosie Williams, David Bett, Paul Holland, Robert Arthern
The Amundsen Sea sector has some of the fastest-thinning ice shelves in Antarctica, caused by high, ocean-driven basal melt rates, which can lead to increased ice streamflow, causing increased sea…3 June, 2024 by Andrew Orr
Accurate ensemble forecasts of heavy precipitation in India are vital for many applications and essential for early warning of damaging flood events, especially during the monsoon season. In this study…2 June, 2024 by Gary Llewellyn
As an unprecedented stream of decametric hyperspectral observations becomes available from recent and upcoming spaceborne missions, effective algorithms are required to retrieve vegetation biophysical and biochemical variables such as leaf…1 June, 2024 by Simon Morley
This study describes the feeding ecology, spatial distribution of each ontogenetic phase and the corresponding plastic debris contamination, in the Caribbean sharpnose shark, Rhizoprionodon porosus as a function of spatial-temporal…1 June, 2024 by Peter Convey
Aspergillus fumigatus is a common opportunistic pathogen in different animals, including birds such as penguins. For the first time, a fungal strain identified as A. fumigatus was isolated from soil…1 June, 2024 by Anna Belcher, Geraint Tarling, Gabriele Stowasser, Sophie Fielding
The mesopelagic zooplankton community plays an important role in the cycling and sequestration of carbon via the biological pump. However, little is known about the physiology and ecology of key…1 June, 2024 by Lily Bentley, Richard Phillips
Aim: Competition is often proposed to drive niche segregation along multiple axes in speciose communities. Understanding spatial partitioning of foraging areas is particularly important in species that are constrained to…Read more on Habitat preferences of Phoebetria albatrosses in sympatry and allopatry
1 June, 2024 by Emma Woodfield
Beatriz Sanchez-Cano, Emma Woodfield, Sam Rennie and Diego Moral Pombo report on a big meeting reflecting a thriving communityRead more on A bigger broader Autumn MIST [Specialist Discussion Meeting Report]
31 May, 2024 by Peter Convey
The polar regions are undergoing rapid transformations due to global warming, resulting in temperature increases far surpassing the global average and significantly impacting ecosystems, especially freshwater systems. Understanding the implications…Read more on White Paper: Addressing the challenges of global warming for polar freshwater resources
30 May, 2024 by Markus Frey
The Arctic is sensitive to cloud radiative forcing. Due to the limited number of aerosols present throughout much of the year, cloud formation is susceptible to the presence of cloud…Read more on Characteristics and sources of fluorescent aerosols in the central Arctic Ocean
29 May, 2024 by Anna Jones, Thomas Lachlan-Cope
Antarctica and the Southern Ocean are the most pristine areas of the globe and represent ideal places to investigate aerosol-climate interactions in an unperturbed atmosphere. In this study, we present…28 May, 2024 by Markus Frey, Robert Mulvaney, Holly Winton
Within the framework of the Isotopic Constraints on Past Ozone Layer in Polar Ice (ISOL-ICE) project, we present initial ice core results from the new ISOL-ICE ice core covering the…28 May, 2024 by Pierre Dutrieux
The Pine Island and Thwaites glaciers are the two largest contributors to sea level rise from Antarctica. Here we examine the influence of basal friction and ice shelf basal melt…23 May, 2024 by Xin Yang
This study explores the role of snowpack in polar boundary layer chemistry, especially as a direct source of reactive bromine (BrOx = BrO + Br) and nitrogen (NOx = NO + NO2) in the Arctic springtime. Surface snow…23 May, 2024 by Dave Munday
Ambiguity over the Eocene opening times of the Tasman Gateway and Drake Passage makes it difficult to determine the initiation time of the Antarctic Circumpolar Current. If the Tasman Gateway…22 May, 2024 by Alex Brisbourne, Andy Smith, Ed King, Rebecca Schlegel
The accuracy of sea-level rise predictions is highly dependent on reliably understanding the subglacial environment beneath ice streams. Bedforms result from the interaction between ice and its substrate, and therefore…Read more on Subglacial bedform and moat initiation beneath Rutford Ice Stream, West Antarctica
21 May, 2024 by Hannah Cubaynes, Jaume Forcada, Peter Fretwell
Regular counts of walruses (Odobenus rosmarus) across their pan-Arctic range are necessary to determine accurate population trends and in turn understand how current rapid changes in their habitat, such as…20 May, 2024 by Alice Clement, David Barnes, Lloyd Peck, Ryan Mathews, Simon Morley
Compared with low latitude coasts, many polar latitudes are still little impacted by intense and direct anthropogenic stressors. Climate forcing is now bringing rapid physical change to nearshore polar realms.…Read more on Trajectory of increased iceberg kill-off in West Antarctica’s shallows [Correspondence]
20 May, 2024 by Caroline Holmes, Louise Sime
In 2023, Antarctic sea-ice extent (SIE) reached record lows, with winter SIE falling to 2.5Mkm2 below the satellite era average. With this multi-model study, we investigate the occurrence of anomalies…18 May, 2024 by Richard Phillips, William Mills
Mercury (Hg) is an environmental contaminant that can negatively impact the health of humans and wildlife. Albatrosses and large petrels show some of the highest levels of Hg contamination among…17 May, 2024
We construct an upper ocean (0-1000m) North Atlantic heat budget (26°-67°N) for the period 1950-2020 using multiple observational datasets and an eddy-permitting global ocean model. On multidecadal timescales ocean heat…Read more on Ocean heat convergence and North Atlantic multidecadal heat content variability
16 May, 2024 by Alistair Crame, Teal Riley
The Fossil Bluff Group of eastern Alexander Island records the exceptional preservation of more than 8 km of Mesozoic sedimentary rocks deposited into an accretionary forearc basin that developed unconformably…16 May, 2024
Under the United Nations Convention on the Law of the Sea (UNCLOS), the Agreement on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction (ABNJ)—the…Read more on Taking climate-smart governance to the high seas
15 May, 2024 by Richard Horne, Sarah Glauert
The Near-Earth Space Radiation and Plasma Environment falls within the realm of G3 Cluster (G3 refers to ‘Near-Earth Radiation and Plasma Environment’ of the ‘Coupled Geospace System’) under the COSPAR…10 May, 2024 by Geraint Tarling, Patrick Keith, Ryan Saunders, Simeon Hill
A primary response of many marine ectotherms to warming is a reduction in body size, to lower the metabolic costs associated with higher temperatures. The impact of such changes on…Read more on Temperature alters the size selectivity of Southern Ocean fish
9 May, 2024 by Andrew Wood
Sexing bird species with monomorphic plumage is generally challenging, and sexual size dimorphism (SSD) is often used to develop morphometric-based sexing tools, e.g., using discriminant functions. Within species, local selection…9 May, 2024 by Alexander Brearley
Mixing in the upper ocean is important for biological production and the transfer of heat and carbon between the atmosphere and deep ocean, properties commonly targeted by observational campaigns using…Read more on Evaluating Existing Ocean Glider Sampling Strategies for Submesoscale Dynamics
8 May, 2024 by Michael Haigh, Paul Holland
The ice streams flowing into the Amundsen Sea, West Antarctica, are losing mass due to changes in oceanic basal melting of their floating ice shelves. Rapid ice-shelf melting is sustained…7 May, 2024 by Claus-Dieter Hillenbrand, James Smith
Silt-rich meltwater plume deposits (MPDs) analyzed from marine sediment cores have elucidated relationships that are clearly connected, yet difficult to constrain, between subglacial hydrology, ice-marginal landforms, and grounding-zone retreat patterns…Read more on Insights into glacial processes from micromorphology of silt-sized sediment
7 May, 2024 by Julien Bodart, Tom Jordan
The subglacial landscape of Antarctica records and influences the behaviour of its overlying ice sheet. However, in many places, the evolution of the landscape and its control on ice sheet…7 May, 2024 by Claus-Dieter Hillenbrand
Knowledge of the behaviour of marine-based ice sheets during times of climatic warming, such as the last deglaciation, provides important information to understand how ice sheets respond to external forcing.…7 May, 2024 by Louise Sime, Qinggang Gao, Rahul Sivankutty, Xu Zhang
Given relatively abundant paleo proxies, the study of the Last Interglacial (LIG, ~129-116 thousand years ago, ka) is valuable to understanding natural variability and feedback in a warmer-than-preindustrial climate. The…6 May, 2024 by Andrew Clarke, Lloyd Peck, Melody Clark
The affect of temperature on tissue protein synthesis rates has been reported in temperate and tropical, but not Antarctic fishes. Previous studies have generally demonstrated low growth rates in Antarctic…4 May, 2024 by Siddharth Gumber
This paper provides the first observational analysis of how droplet separation is impacted by the flinging action of microscale vortices in turbulent clouds over a select radii range and how…Read more on Turbulence-induced droplet grouping and augmented rain formation in cumulus clouds
1 May, 2024 by Peter Convey
1. During the 2022/2023 austral winter, large swarms of Trichocera (Saltrichocera) maculipennis Meigen, 1818 (Diptera: Trichoceridae), were observed around house roofs in Puerto Williams (Navarino Island, southern Chile, 54° S). In…1 May, 2024 by Peter Convey
Bryum is a moss genus that is widely distributed across the planet. Many of its species are characterized by large phenotypic and morphological plasticity, generating uncertainty in species identification exclusively…1 May, 2024 by Andrew Fleming, Scott Hosking, Jeremy Wilkinson, Maria Fox, Martin Rogers
Synthetic Aperture Radar (SAR) imagery is the primary data type used for sea ice mapping due to its spatiotemporal coverage and the ability to detect sea ice independent of cloud…Read more on Sea ice detection using concurrent multispectral and synthetic aperture radar imagery
1 May, 2024 by Claus-Dieter Hillenbrand, James Smith
Beryllium-10 (10Be) is proposed to be a potential proxy for investigating ice shelf presence and absence, or meltwater discharge in coastal polar environments. However, the sources and distribution of atmospherically…1 May, 2024 by Richard Phillips
Bycatch in fisheries is a key threat to non-target marine species, particularly for those species that have life histories with low productivity or poor conservation status. In this paper, the…1 May, 2024 by Richard Phillips
Information available on impacts of fisheries on target or bycatch species varies greatly, requiring development of risk assessment tools to determine potentially unacceptable levels. Seabirds, marine mammals, marine turtles and…1 May, 2024 by Mark Clilverd
Large geomagnetic storms are a space weather hazard to power transmission networks due to the effects of Geomagnetically Induced Currents (GICs). GIC can negatively impact power transmission systems through the…1 May, 2024 by Andrew Fleming, Louise Ireland, Philip Trathan
We tracked adult emperor penguins from Rothschild Island, west Antarctic Peninsula in 2015/2016 during a summer with extensive sea ice of long duration, contrasting with past years of reduced sea…30 April, 2024 by James Smith, Kelly Hogan
During Quaternary glaciations, ice sheets expanded from continental interiors across continental shelves and delivered large volumes of sediment, transported by meltwater, and icebergs to the marine environment. Glaciomarine sediments preserve…26 April, 2024 by Clara Manno
Pteropods are a group of cosmopolitan holoplanktic gastropods that produce an aragonite shell and play an important role in both marine ecosystems and geochemical cycles. In addition to being affected…26 April, 2024 by Katrin Linse
Confined by the Mid-Atlantic Ridge and the European continental shelf, the deep-sea acorn barnacle Bathylasma hirsutum (Hoek, 1883) lives in the northeast Atlantic deep sea where it has been frequently…24 April, 2024 by Martin Collins
We present a genome assembly from an individual Notothenia rossii (the marbled rockcod; Chordata; Actinopterygii; Perciformes; Nototheniidae). The genome sequence is 1,042.9 megabases in span. Most of the assembly is…24 April, 2024 by Peter Convey
Pharmaceuticals are therapeutic drugs used to treat or prevent human or animal diseases. The incomplete breakdown of these drugs in the body can lead to their release into the environment…24 April, 2024 by Tracy Moffat-Griffin
The Hunga Tonga–Hunga Ha′apai volcano erupted on 15 January 2022, launching Lamb waves and gravity waves into the atmosphere. In this study, we present results using 13 globally distributed meteor…23 April, 2024 by Alexander Lozinski, Richard Horne, Sarah Glauert
The proton radiation belt contains high fluxes of adiabatically trapped protons varying in energy from ∼one to hundreds of megaelectron volts (MeV). At large radial distances, magnetospheric field lines become…23 April, 2024 by Mark Clilverd
From a distance, we perceive the Sun as an unchanging source of light. While this is functionally true on a day-to-day human level, at a scientific level, the Sun has…Read more on Space Weather: A Global Hazard from Space to New Zealand’s Technological Infrastructure
22 April, 2024 by Kaitlin Naughten
Glaciers along the Amundsen Sea coastline in West Antarctica are dynamically adjusting to a change in ice-shelf mass balance that triggered their retreat and speed-up prior to the satellite era.…Read more on Geometric amplification and suppression of ice-shelf basal melt in West Antarctica
18 April, 2024 by Povl Abrahamsen, Geraint Tarling, Ryan Saunders, Sally Thorpe, Victoria Fowler
Kaartvedt et al. (2024; Mar Ecol Prog Ser 734:173–175) comment on the role internal waves played in the findings of Dewar-Fowler et al. (2023; Mar Ecol Prog Ser 715:27–39) that…17 April, 2024 by Gaelle Veyssiere, Jeremy Wilkinson
As Arctic sea ice and its overlying snow cover thin, more light penetrates into the ice and upper ocean, shifting the phenology of algal growth within the bottom of sea…Read more on Mapping Potential Timing of Ice Algal Blooms From Satellite
16 April, 2024 by Caroline Holmes, Jeremy Wilkinson, John Turner
The 2023 Antarctic sea ice extent (SIE) maximum on 7 September was the lowest annual maximum in the satellite era (16.98 × 106 km2), with the largest contributions to the…16 April, 2024 by Ramesh Karanam, Tracy Moffat-Griffin
Long-term variabilities of monthly zonal (U) and meridional winds (V) in northern polar mesosphere and lower thermosphere (MLT, ∼80–100 km) are investigated using meteor radar observations during 1999–2022 over Esrange…16 April, 2024 by Mark Clilverd
The October effect is known as a rapid and strong decrease in the signal amplitude of radio waves with very low frequency (VLF), reflected at the lowest edge of the…Read more on Why Does the October Effect Not Occur at Night?