Polar Oceans team
Our ambition
Is to understand the role of the oceans in influencing the polar ice caps, and regional climate change caused by shifts in ocean circulation. Our aim is to reduce uncertainty in scientific predictions for a future world and to provide Government with scientific assessment of how these issues will affect the everyday lives of people in decades to come.
Our two research groups (Open Oceans and Shelf Seas) focus on the rapidly-changing regions of West Antarctica and Greenland, on other polar areas where the current rates of change appear slower but which may be susceptible to dramatic changes in future, and on the broader deep ocean areas of both the Arctic and the Southern Ocean. The British Antarctic Survey has unique capability in these research areas, including leadership of interdisciplinary teams that work across the boundaries of glaciology, oceanography and climate science.
Team priorities
Science
- The role of the ocean in melting the polar ice caps. To measure, simulate and understand the global implications of the polar changes and the influencing of ice shelves and ice sheet stability.
- The vigorous-overturning in the regions of water mass renewal close to Antarctica and in the Arctic. To improve knowledge of the role played by the polar oceans in exchanging heat and carbon with the atmosphere, in storing them in the ocean interior, and the impacts that these processes have on the climatic evolution of the planet
- Reduce uncertainty concerning the future trends in climate and sea level. To conduct specific process models and regional ocean model experiments, and work with partners to simulate and understand the global implications of the polar changes
Technology, innovation and training
- Use a range of advanced technology, including some developed in-house to fulfil specific requirements
- Targeted numerical modelling studies and dynamical analyses
- Ship-based and autonomous marine platforms, along with instrumentation deployed on and through ice shelves in both polar regions
Influencing and leading international programmes
- Work with leading UK and international partners who conduct Arctic and Antarctic research, including those that are involved with the Intergovernmental Panel on Climate Change (IPCC)
Stakeholder engagement
- Provide advice and briefings to science advisors within UK Government Departments, including the Department of Energy and Climate Change
- Engage with business groups and actively seek partnerships that help shape the development of science projects
Public engagement
- Disseminate our findings, published in the highest-impact journals, through presentations in leading national and international forums, and via numerous public engagement activities
How are scientists measuring the impacts of CO2 over time? Message from Antarctica sees deputy head of the Polar Oceans Team at the British Antarctic Survey, Emily Shuckburgh, work with award-winning designer, author and illustrator Chris Haughton
Ocean Forcing of Ice-Sheet Change
Antarctic ice-loss research capability
UKESM-BAS
Reliable projections of the Earth’s climate are at the heart of scientific support for international efforts to address global change. There is increasing recognition that reliable projections require that physical …
ACSIS
Major changes are occurring across the North Atlantic climate system: in the ocean and atmosphere temperatures and circulation, in sea ice thickness and extent, and in key atmospheric constituents such …
ORCHESTRA
Understanding the Ocean Regulation of Climate by Heat, Carbon Sequestration and Transports
Dynamics of the Orkney Passage Outflow (DynOPO)
Dynamics of the Orkney Passage Outflow (DynOPO) is a collaboration between BAS, the University of Southampton and the National Oceanography Centre (NOC). The project aims to investigate the flow of …
ARCHER
In recent years, adjoint methods have been used to gain unique insights into the ocean and cryosphere. However, the use of adjoint models on large-scale problems suitable for high-performance computing …
A23 repeat section
Understanding Antarctic Bottom Water (AABW) and its affect on global ocean circulation.
Rothera Time Series
Earth System indicators in Antarctica
TEA-COSI
TEA_COSI assesses Arctic Sea-ice which has an important impact on currents and ocean circulations around the globe
iSTAR-A Ocean2Ice Processes and variability
iStar-B strives to better understand ocean and ice interaction, processes and variability
iSTAR-B Ocean circulation and melting beneath the ice shelves of the south-eastern Amundsen Sea
iStar-B studies ocean circulation and melting beneath the ice shelves of the south-eastern Amundsen Sea
New close-up view of melting beneath Thwaites Glacier
15 February, 2023
The rapid retreat of Thwaites Glacier in West Antarctica appears to be driven by different processes under its floating ice shelf than researchers previously understood. Novel observations from where the …
Underwater tsunamis created by glacier calving
23 November, 2022
Scientists on a research vessel in Antarctica watched the front of a glacier disintegrate and their measurements ‘went off the scale’. As well as witnessing disruptions on the ocean surface, …
Glaciers in the spotlight on BBC’s Our Frozen Planet
11 October, 2022
How much water the mountain glaciers of the Himalayas contain and how the mighty Thwaites Glacier in West Antarctica will contribute to global sea-level rise form part of the final …
BBC’s Frozen Planet II: science into television
23 September, 2022
In 2011, Frozen Planet gave BBC viewers an unprecedented insight into life in the Poles. The final episode featured British Antarctic Survey (BAS) glaciologist Dr Andy Smith using explosives to …
Funding addresses environmental challenges
27 June, 2022
British Antarctic Survey (BAS) scientists will investigate critical challenges facing the UK, thanks to new funding from the Natural Environment Research Council (NERC). A £47m investment to several UK research …
New link between greenhouse gases and sea-level rise
6 April, 2022
Researchers have used advanced ocean modelling techniques to reveal how greenhouse gas emissions contribute to warmer oceans and resulting melting of the West Antarctic Ice Sheet.
Study underway as Antarctic sea ice extent at record level
29 March, 2022
A £5m project funded by the Natural Environment Research Council (NERC) to investigate the complex changes seen in sea ice around the Antarctic begins this month (March 2022) as the …
Heat source melting Greenland Ice Sheet discovered
21 February, 2022
A new study has found that the world’s second-largest ice sheet is generating huge amounts of heat. Researchers including BAS oceanographer Dr Keith Nicholls have observed extremely high rates of melting at the bottom of the Greenland Ice Sheet.
Warming Western Antarctic Peninsula waters impact plankton community
17 August, 2021
Warming water and receding sea ice in the Western Antarctic Peninsula is changing the local plankton community with potential consequences for climate change, according to an international team of researchers. …
IPCC: Polar scientists welcome Climate Change Assessment
9 August, 2021
CAMBRIDGE: British Antarctic Survey welcomes the publication of the Intergovernmental Panel on Climate Change (IPCC) Working Group 1 component of its Sixth Assessment Report. This assessment brings together the latest advances in …
Antarctic glacier is ripping apart at ice front, causing it to gain speed
11 June, 2021
For decades, the ice shelf helping to hold back one of the fastest-moving glaciers in Antarctica – Pine Island Glacier in West Antarctica – has gradually thinned. Analysis of satellite …
The world’s largest iceberg
21 May, 2021
An enormous iceberg has calved from the western side of the Ronne Ice Shelf, in Antarctica. The iceberg, newly named A-76, measures around 4320 sq km in size and is …
Scientists reconstruct past history of largest ice shelf on Antarctic Peninsula
19 May, 2021
For the first time, geological records have been used to reconstruct the history of Larsen C Ice Shelf in Antarctica. The ice shelf is the largest remaining remnant of a …
End of giant iceberg A-68
19 April, 2021
The mission to determine the impact of the giant A-68a iceberg on the important marine ecosystem of sub-Antarctic South Georgia is a success.
New autonomous robotic for RRS Sir David Attenborough
15 March, 2021
A new unmanned robotic vehicle on the RRS Sir David Attenborough will help scientists to understand the impact of glaciers on sea-level rise.
Potential for life in lakes isolated beneath Antarctic ice
18 February, 2021
In a study published in Science Advances, researchers from Imperial College London, the University of Lyon and the British Antarctic Survey have shown Antarctic subglacial lakes may be more hospitable …
Celebrating International Day of Women & Girls in Science 2021
11 February, 2021
Today is International Day of Women and Girls in Science (11 February), a celebration of women and girls in science led by UNESCO and UN-Women. “International Day of Women and …
Giant iceberg mission begins
2 February, 2021
A research mission to determine the impact of the giant A-68a iceberg on one of the world’s most important ecosystems departs from Stanley in the Falkland Islands today (2 February …
Fellowship success for leaders of the future
23 April, 2020
UK Research and Innovation (UKRI) has announced its latest round of Future Leaders Fellowships today (23 April 2020). Congratulations to Dr Dan Jones and Dr Clara Manno of British Antarctic …
New report reveals state of the planet
26 September, 2019
MONACO: Hundreds of scientists and Government representatives met in Monaco this week to finalise the new Intergovernmental Panel on Climate Change Special Report on the Ocean and Cryosphere in a …
Solar heat drives rapid melting of Antarctic Ice Shelf
29 April, 2019
A section of the world’s largest ice shelf in Antarctica – around the size of Spain – is melting 10 times faster than average and warm ocean currents beneath it …
Scientists map ‘deepest’ parts of Southern Ocean
22 March, 2019
A team of researchers led by British Antarctic Survey has for the first time mapped the deepest part of the South Sandwich Trench in the Southern Ocean. This part of …
Study shows melting ice sheets will disrupt climate
7 February, 2019
Water entering the oceans from melting ice sheets could cause extreme weather and a change in ocean circulation not currently accounted for in global climate policies, a new study published …
Scientists drill to record depths in West Antarctica
24 January, 2019
A team of scientists and engineers has for the first time successfully drilled over two kilometres through the ice sheet in West Antarctica using hot water. This research will help …
Funding to assess shipping emissions and climate hazards
13 December, 2018
British Antarctic Survey (BAS) scientists have been awarded funding to enable them to assess the impact of emissions from shipping and to quantify and manage the risk of climate hazards. …
Challenger Medal award
13 September, 2018
The prestigious Challenger Medal for excellence in marine science has been awarded to British Antarctic Survey (BAS) oceanographer Professor Mike Meredith. Presented every two years by the Challenger Society – …
Melt-rate of West Antarctic Ice Sheet highly sensitive to changes in ocean temperatures
13 August, 2018
Melting of ice shelves in West Antarctica speeds up and slows down in response to changes in deep ocean temperature, and is far more variable than previously thought, according to …
Special issue on how oceans are changing
14 May, 2018
The seas around the Antarctic Peninsula are biologically extremely rich, but are climatically sensitive, having experienced some of the fastest warming globally in recent decades. A special issue of the …
Boaty returns from first mission under the ice
13 March, 2018
The yellow high-tech autonomous underwater vehicle (AUV), affectionately known as Boaty McBoatface, has successfully returned from an ambitious science expedition deep below half a kilometre of ice. It is the …
BAS Oceanographer selected for Special IPCC Report
17 August, 2017
The Intergovernmental Panel on Climate Change (IPCC) has selected Professor Mike Meredith from British Antarctic Survey (BAS) to be a coordinating lead author for a Special Report on the Ocean …
Climate Scientist awarded Prestigious Mathematical prize
18 July, 2017
Last week (12th July) Dr Emily Shuckburgh travelled to Pittsburgh, USA, and received the prestigious 2017 I. E. Block Community Lecture prize from SIAM – the Society for Industrial and …
Boaty McBoatface returns home with unprecedented data
28 June, 2017
Researchers have captured unprecedented data about some of the coldest abyssal ocean waters on earth – known as Antarctic Bottom Water (AABW) – during the first voyage of the yellow …
The first dive of Boaty McBoatface
7 April, 2017
The unmanned submersible Boaty McBoatface was deployed in the Antarctic for the first time.
Boaty McBoatface sub prepares for first Antarctic mission
13 March, 2017
Boaty McBoatface is joining ocean scientists from the University of Southampton and British Antarctic Survey (BAS) on an expedition to study some of the deepest and coldest abyssal ocean waters …
New footage shows crack in Larsen C Ice Shelf
21 February, 2017
British Antarctic Survey (BAS) recently captured this video footage of a huge crack in the Larsen C Ice Shelf, on the Antarctic Peninsula. Currently a huge iceberg, roughly the size …
Local weather plays part in retreat of glacier
17 February, 2017
Local weather plays an important part in the retreat of the ice shelves in West Antarctica, according to new research published in the journal Nature Communications today (Friday 17 February). …
Scientists explain how meltwater reaches ocean depths
30 January, 2017
An international team of researchers has discovered why fresh water, melted from Antarctic ice sheets, is often detected below the surface of the ocean, rather than rising to the top …
Polar oceanographer co-authors climate change Ladybird book with HRH Prince of Wales and Tony Juniper
15 January, 2017
British Antarctic Survey scientist Dr Emily Shuckburgh OBE has co-authored a book on climate change as part of the new Ladybird Expert series, it was announced today. Her co-authors are His …
Nature’s ocean fertiliser
20 September, 2016
Scientists have discovered that Antarctic krill – a tiny shrimp-like crustacean – plays a key role in fertilising the Southern Ocean with iron, which stimulates the growth of phytoplankton, the …
Ocean warming primary cause of glacier retreat
14 July, 2016
A new study has found for the first time that ocean warming is the primary cause of retreat of glaciers on the Antarctic Peninsula. The Peninsula is one of the largest current contributors to sea-level rise and this new finding will enable researchers to make better predictions of ice loss from this region.
Wind-blown Antarctic sea ice helps drive ocean circulation
27 June, 2016
Antarctic sea ice is constantly on the move as powerful winds blow it away from the coast and out toward the open ocean. A new study published today in the journal Nature Geoscience (Monday 27 June) shows how that ice migration may be more important for the global ocean circulation than anyone realized.
NEWS STORY: New Year’s Honours
1 January, 2016
Dr Emily Shuckburgh, British Antarctic Survey’s Deputy Head of Polar Oceans, was among those named in the New Year’s Honours List. She has been awarded an OBE for services to …
NEWS STORY: New Centre for Doctoral Training
6 October, 2015
NERC funds PhD training in robotics and autonomous systems
PRESS RELEASE: Ice shelf at double risk
13 May, 2015
New study shows Antarctic ice shelf is thinning from above and below A decade-long scientific debate about what’s causing the thinning of one of Antarctica’s largest ice shelves is settled …
NEWS STORY: Columns widespread in Southern Ocean
5 March, 2015
Oceanographers discover ‘Taylor columns’ are widespread in Southern Ocean according to new research published recently in the Journal of Geophysical Research Lead author Professor Mike Meredith, a Senior Oceanographer at …
PRESS RELEASE: Mapping the ice from below
24 November, 2014
Underwater robot sheds new light on Antarctic sea ice The first detailed, high-resolution 3-D maps of Antarctic sea ice have been developed using an underwater robot. Scientists from the UK, …
PRESS RELEASE: New marine life atlas
25 August, 2014
New Atlas of Southern Ocean marine life A new atlas, providing the most thorough audit of marine life in the Southern Ocean, is published this week by the Scientific Committee …
NEWS STORY: Southern Ocean dynamics
2 June, 2014
The Southern Ocean: new insights into circulation, carbon and climate A special issue of the Philosophical Transactions of the Royal Society A has been published today (Monday 2 June) which …
NEWS STORY: Crucial conditions for phytoplankton
16 March, 2014
Winter conditions crucial for phytoplankton growth in Southern Ocean An international team of researchers, including the British Antarctic Survey, has found new evidence that winter conditions in the Southern Ocean …
PRESS RELEASE: Pine Island Glacier and climatic variability
2 January, 2014
Pine Island Glacier sensitive to climatic variability A new study published in Science this month suggests the thinning of Pine Island Glacier in West Antarctica is much more susceptible to …
NEWS STORY: New research on ocean currents
22 December, 2013
New research sheds light on history of polar current Research conducted by a team that included scientists from British Antarctic Survey reveals the ocean current moving around the South Pole …
NEWS STORY: Submerged mountains aid ocean mixing
18 September, 2013
Undersea mountains provide crucial piece in climate prediction puzzle A mystery in the ocean near Antarctica has been solved by researchers who have long puzzled over how deep and mid-depth …
NEWS STORY: New academic role for expert
22 May, 2013
Honorary Professorship for BAS polar ocean expert Michael Meredith Polar ocean expert, Michael Meredith, has been made an honorary Professor by the University of the Highlands and Islands. The professorship …
NEWS STORY: New post for oceans expert
7 February, 2013
Professor Michael Meredith joins the Scottish Association for Marine Science Eminent Antarctic oceanographer, Professor Michael Meredith this week joined the staff at the Scottish Association for Marine Science (SAMS) on …
PRESS RELEASE: Changing winds increasing sea ice cover
11 November, 2012
Why Antarctic sea ice cover has increased under the effects of climate change The first direct evidence that marked changes to Antarctic sea ice drift have occurred over the last …
NEWS STORY: Insights into icebergs
29 October, 2012
Scientists discover new mechanism at work breaking-up icebergs An international team of scientists has discovered a previously unknown mechanism by which large tabular icebergs break up out at sea as …
NEWS STORY: Ocean sampling at Rothera
20 August, 2012
Ocean sampling: Rothera, Antarctic Peninsula: last but not least! Are the World’s oceans all the same, or are they different? OK at the most basic level, we all know that …
PRESS RELEASE: Ocean role as carbon sink
29 July, 2012
New discovery of how carbon is stored in the Southern Ocean A team of British and Australian scientists has discovered an important method of how carbon is drawn down from …
NEWS STORY: BAS on the BBC
17 July, 2012
Scientists take part in BBC expedition “Operation Iceberg” This summer two British Antarctic Survey (BAS) scientists head to the Arctic to take part in the BBC expedition ‘Operation Iceberg’. Oceanographers …
PRESS RELEASE: Ocean currents driving ice loss
25 April, 2012
Warm ocean currents cause majority of ice loss from Antarctica Reporting this week (Thursday 26 April) in the journal Nature, an international team of scientists led by British Antarctic Survey …
PRESS RELEASE: Glacier’s melt rate quickens
27 June, 2011
Warm ocean speeds melting of Antarctic glacier New results from an investigation into a large glacier in Antarctica and its impact on global sea level rise are published this week …
PRESS RELEASE: Growing evidence of carbon impact
22 February, 2011
Captain Scott’s century-old collections suggest marine life is capturing more carbon Tiny Antarctic marine creatures collected 100 years ago by Antarctic explorer Captain Robert Falcon Scott give new clues about …
PRESS RELEASE: Ridge contributes to melting
20 June, 2010
New research sheds light on Antarctica”s melting Pine Island Glacier New results from an investigation into Antarctica’s potential contribution to sea level rise are reported this week (Sunday 20 June) …
PRESS RELEASE: Sonar images reveal seabed
5 May, 2009
New Antarctic seabed sonar images reveal clues to sea-level rise Motorway-sized troughs and channels carved into Antarctica’s continental shelves by glaciers thousands of years ago could help scientists to predict …
PRESS RELEASE: Surveying below the ice
17 March, 2009
Robot submarine searches for signs of melting under Antarctic Ice Shelf A team of British and American scientists has successfully deployed an autonomous robot submarine on six missions beneath an …
Science Trials on the RRS Sir David Attenborough add to historic dataset
22 February, 2023 by Emily Newton
Last week, the team aboard the RRS Sir David Attenborough produced the first significant scientific data set with the ship’s oceanography equipment – a significant milestone in the life of …
Rothera Marine Team – Overcoming challenges
3 January, 2023 by Aurelia Reichardt
Working in Antarctica often means making the best out of what you got. For the Rothera 2022 wintering team, this meant spending a winter without diving, which had to be …
First science on board RRS Sir David Attenborough
16 May, 2022 by Emily Neville
Britain’s new polar ship, RRS Sir David Attenborough, has reached another exciting milestone, completing its first ever scientific assignment – retrieving a scientific mooring! RRS Sir David Attenborough is currently …
Blog: Mission to investigate A68a iceberg
25 January, 2021 by Povl Abrahamsen
Preparations are underway: a team of researchers are quarantining in the Falkland Islands before they begin their mission on board RRS James Cook bound for the giant A68a iceberg. The …
Make sure stammered voices are heard
22 October, 2020 by Kaitlin Naughten
Blog: Ocean modeller Dr Kaitlin Naughten discusses what we can do as individuals and as institutions to support our colleagues who stammer.
The Arctic heatwave of 2020
18 September, 2020 by Michael Meredith
As the Arctic sea ice minimum approaches this month, we share a blog from Professor Mike Meredith at British Antarctic Survey about how the region is rapidly changing in our …
AI for Environmental Sciences
21 July, 2019 by Rachel Furner
Rachel Furner is a PhD student at British Antarctic Survey, which has recently opened up its new AI Lab, that aims to foster the application of various machine learning (and …
SCIENCE IN THE SEA – Part 3: Gliders galore!
20 December, 2017 by Ryan Scott
It was finally time to deploy the gliders and I couldn’t be more excited! Autonomous vehicles are regarded as the future of oceanography, and I feel extremely lucky to be …
SCIENCE IN THE SEA – Part 1: Journey to the JCR!
29 November, 2017 by Ryan Scott
After 6 days, 9505 miles and 7 mm of beard growth, the cruise has officially started! Thursday 16th November and finally the time had come for me start my journey …
SHIP BLOG: Sea ice, science, and wildlife
10 April, 2016 by Dan(i) Jones
Investigating the Southern Ocean Oceanographers Dan Jones and Erik MacKie are onboard the RRS James Clark Ross carrying out a hydrographic survey in the Southern Ocean as part of a …
ARCTIC BLOG: Hot water drilling on Petermann Glacier
24 August, 2015 by Keith Nicholls
Standing anywhere on Petermann ice shelf, the overriding sense you get is the proximity of water. A lot of water. Standing water, ranging from small ponds, up to lakes hundreds …
Observational evidence for on-shelf heat transport driven by dense water export in the Weddell Sea
7 March, 2023 by Keith Nicholls
The transport of oceanic heat towards the Antarctic continental margin is central to the mass balance of the Antarctic Ice Sheet. Recent modeling efforts challenge our view on where and…Ba/Ca of stylasterid coral skeletons records dissolved seawater barium concentrations
24 February, 2023 by Kate Hendry
The concentration of dissolved barium in seawater ([Ba]SW) is influenced by both primary productivity and ocean circulation patterns. Reconstructing past subsurface [Ba]SW can therefore provide important information on processes which…Read more on Ba/Ca of stylasterid coral skeletons records dissolved seawater barium concentrations
Towards a fully unstructured ocean model for ice shelf cavity environments: Model development and verification using the Firedrake finite element framework
16 February, 2023 by Keith Nicholls, Paul Holland
Numerical studies of ice flow have consistently identified the grounding zone of outlet glaciers and ice streams (the region where ice starts to float) as crucial for predicting the rate…Suppressed basal melting in the eastern Thwaites Glacier grounding zone
15 February, 2023 by Irena Vankova, James Smith, Keith Makinson, Keith Nicholls, Paul Anker, Peter Davis, Robert Arthern
Thwaites Glacier is one of the fastest-changing ice–ocean systems in Antarctica1,2,3. Much of the ice sheet within the catchment of Thwaites Glacier is grounded below sea level on bedrock that…Read more on Suppressed basal melting in the eastern Thwaites Glacier grounding zone
Heterogeneous melting near the Thwaites Glacier grounding line
15 February, 2023 by Catrin Thomas, David Vaughan, James Smith, James Wake, Keith Makinson, Keith Nicholls, Paul Anker, Peter Davis, Catrin Thomas
Thwaites Glacier represents 15% of the ice discharge from the West Antarctic Ice Sheet and influences a wider catchment. Because it is grounded below sea level, Thwaites Glacier is thought…Read more on Heterogeneous melting near the Thwaites Glacier grounding line
The impacts of combined SAM and ENSO on seasonal Antarctic sea ice changes
8 February, 2023 by Paul Holland
Both the Southern Annular Mode (SAM) and the El Niño-Southern Oscillation (ENSO) are critical factors contributing to Antarctic sea ice variability on interannual time scales. However, their joint effects on…Read more on The impacts of combined SAM and ENSO on seasonal Antarctic sea ice changes
Turbulence in the ice shelf–ocean boundary current and its sensitivity to model resolution
2 February, 2023 by Paul Holland, Ryan Patmore
The ice shelf-ocean boundary current has an important control on heat delivery to the base of an ice shelf. Climate and regional models that include a representation of ice shelf…Variability of the shelf circulation around South Georgia, Southern Ocean
1 February, 2023 by Emma Young, Michael Meredith
A high-resolution ocean model is used to characterize the variability of the shelf circulation and cross-shelf transport around the South Georgia island (SG). The time-mean shelf circulation consists of a…Read more on Variability of the shelf circulation around South Georgia, Southern Ocean
The Impact of Stochastic Mesoscale Weather Systems on the Atlantic Ocean
1 February, 2023 by Shenjie Zhou
The ocean is forced by the atmosphere on a range of spatial and temporal scales. In numerical models the atmospheric resolution sets a limit on these scales and for typical…Read more on The Impact of Stochastic Mesoscale Weather Systems on the Atlantic Ocean
A database of marine macronutrient, temperature and salinity measurements made around the highly productive island of South Georgia, the Scotia Sea and the Antarctic Peninsula between 1980 and 2009
12 January, 2023 by Geraint Tarling, Kate Hendry, Petra Ten Hoopen, Sally Thorpe
We present a database from substantial collections of macronutrient data made on 20 oceanographic cruises, primarily from around the island of South Georgia and the Scotia Sea. This sector of…Seasonal cycles of biogeochemical fluxes in the Scotia Sea, Southern Ocean: A stable isotope approach [in review]
6 January, 2023 by Anna Belcher, Clara Manno, Kate Hendry
The biological carbon pump is responsible for much of the decadal variability in the ocean carbon dioxide (CO2) sink, driving the transfer of carbon from the atmosphere to the deep…Carbon and nutrient cycling in Antarctic landfast sea ice from winter to summer
1 January, 2023 by Hugh Venables, Mairi Fenton, Michael Meredith
Seasonal cycling in carbon, alkalinity, and nutrients in landfast sea ice in Hangar Cove, Adelaide Island, West Antarctic Peninsula, were investigated during winter, spring, and summer 2014–2015. Temporal dynamics were…Read more on Carbon and nutrient cycling in Antarctic landfast sea ice from winter to summer
Benthic diatoms modify riverine silicon export to a marine zone in a hypertidal estuarine environment
1 January, 2023 by Kate Hendry
Riverine dissolved silicon (DSi) and biogenic silica (BSi) are modulated along the estuarine gradient by several biotic and abiotic processes governed by physical forcings. An important area controlling silicon transport…Baroclinic Ocean Response to Climate Forcing Regulates Decadal Variability of Ice‐Shelf Melting in the Amundsen Sea
28 December, 2022 by Kaitlin Naughten, Paul Holland, Pierre Dutrieux
Warm ocean waters drive rapid ice-shelf melting in the Amundsen Sea. The ocean heat transport toward the ice shelves is associated with the Amundsen Undercurrent, a near-bottom current that flows…Anthropogenic and internal drivers of wind changes over the Amundsen Sea, West Antarctica, during the 20th and 21st centuries
22 December, 2022 by James Smith, Kaitlin Naughten, Paul Holland, Pierre Dutrieux, Thomas Bracegirdle
Ocean-driven ice loss from the West Antarctic Ice Sheet is a significant contributor to sea-level rise. Recent ocean variability in the Amundsen Sea is controlled by near-surface winds. We combine…The sensitivity of the Eocene–Oligocene Southern Ocean to the strength and position of wind stress
21 December, 2022 by Dave Munday
The early Cenozoic opening of the Tasmanian Gateway (TG) and Drake Passage (DP), alongside the synergistic action of the westerly winds, led to a Southern Ocean transition from large, subpolar…New evidence for preservation of contemporary marine organic carbon by iron in Arctic shelf sediments
15 December, 2022 by Kate Hendry
The protection of organic carbon through association with iron minerals (FeR) is an important factor in its stabilisation, long-term storage, and burial efficiency in marine sediments. However, large uncertainties still…The dynamics of a barotropic current impinging on an ice front
1 December, 2022 by Ryan Patmore
The vertical front of ice shelves represents a topographic barrier for barotropic currents that transport a considerable amount of heat towards the ice shelves. The blocking effect of the ice…Read more on The dynamics of a barotropic current impinging on an ice front
Benthic dissolved silicon and iron cycling at glaciated Patagonian fjord heads
25 November, 2022 by Kate Hendry
Glacier meltwater supplies silicon (Si) and iron (Fe) sourced from weathered bedrock to downstream ecosystems. However, the extent to which these nutrients reach the ocean is regulated by the nature…Read more on Benthic dissolved silicon and iron cycling at glaciated Patagonian fjord heads
Internal tsunamigenesis and ocean mixing driven by glacier calving in Antarctica
23 November, 2022 by Dave Munday, Alexander Brearley, Laura Gerrish, Michael Meredith
Ocean mixing around Antarctica exerts key influences on glacier dynamics and ice shelf retreats, sea ice, and marine productivity, thus affecting global sea level and climate. The conventional paradigm is…Read more on Internal tsunamigenesis and ocean mixing driven by glacier calving in Antarctica
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