Sea-ice extent

SIWHA

SIWHA is a trilateral project between India, the UK and Norway. The aim is to drill a 500 m ice core in coastal East Antarctica. The ice core will provide …


SO-WISE

We are constructing observationally-constrained estimates of the state of the Weddell Gyre, including associated ice shelves and sea ice Introduction In the 25 years between 1992 and 2017, ocean melting …



Weddell Sea ice sheet and climate

In the south of the Weddell Sea lies the Ronne and Filchner Ice Shelves. During the coldest part of the last glacial period about 25,000 years ago, the ice in …


The role of Antarctic sea-ice in global climate

Sea-ice is frequently cited as a likely driver and propagator of abrupt climate change because of the rapid and far-reaching impact of its feedbacks. However, numerical climate models are still …


Filchner Ice Shelf System, Antarctica

Understanding the contribution that polar ice sheets make to global sea-level rise is recognised internationally as urgent.  The mission of this five-year project is to capture new observations and data …


ICE-ARC

physicists, chemists, biologists, economists, and sociologists from 21 institutes in 11 countries across Europe assess the rapid retreat and collapse of Arctic sea-ice cover


Sea ice at both poles

30 June, 2022

What’s new about sea-ice data? The maximum sea-ice extent happens around February in the Arctic. For the year 2022, the maximum extent was recorded at nearly 15 million square kilometres. …


The Antarctic Peninsula’s retreating ice shelves

30 June, 2022

Introduction The Antarctic Peninsula experienced unprecedented warming during the latter part of the 20th Century. This caused seven floating ice shelves to retreat dramatically with very little of their area …


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 …



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.





Antarctic sea ice loss explained in new study

17 June, 2020

Scientists have discovered that summer sea ice in the Weddell Sea area of Antarctica has decreased by one million square kilometres – an area twice the size of Spain – …




Study sheds new light on krill larvae survival

14 November, 2017

An international study involving British Antarctic Survey (BAS) scientists has shed light on how the larvae of Antarctic krill – small shrimp-like crustaceans – use sea ice to ensure their …



Arctic sea ice at minimum extent for 2017

25 September, 2017

Arctic sea ice extent has likely reached its minimum extent for the year, at 4.64 million square kilometers (1.79 million square miles) on September 13, 2017, according to a team …


UK scientists to explore Changing Arctic Ocean

3 July, 2017

A new £10 million research programme to investigate how the Arctic Ocean is changing kicked off last week (Friday 30 June) with its first research expedition to the Barents Sea. …



Antarctic sea ice extent lowest on record

16 February, 2017

This year the extent of summer sea ice in the Antarctic is the lowest on record. The Antarctic sea ice minimum marks the day – typically towards end of February …


FEATURED PAPER: Sea-ice reduction

18 October, 2016

A team of British climate scientists comparing today’s environment with the warm period before the last ice age has discovered a 65% reduction of Antarctic sea ice around 128,000 years …





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 polar ship bidder selected

12 October, 2015

Government announces preferred bidder to build new polar ship Minister of State for Universities and Science, Jo Johnson announced today that the preferred bidder to build a new polar research …


NEWS STORY: Arctic sea ice 2015

17 September, 2015

Arctic sea ice 2015 On September 11, the National Snow and Ice Data Centre (NSIDC) reported that Arctic sea ice reached its likely minimum extent for 2015. The minimum ice …



NEWS STORY: Frozen in to the Arctic winter

10 March, 2015

Extreme science in extreme conditions: frozen in to the Arctic winter Dr Markus Frey, a British Antarctic Survey (BAS) ice and atmospheric scientist, is living and working aboard the Norwegian …


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, …


NEWS STORY: Sea ice minimum explained

18 September, 2014

Arctic sea ice summer minimum 2014: A scientific perspective The Arctic sea ice minimum marks the day – typically in September – when sea ice reaches its smallest extent at …


NEWS STORY: Arctic sea ice trends

13 February, 2014

British Antarctic Survey coordinates Arctic sea-ice investigation Arctic sea-ice cover is retreating at an unprecedented rate. Scientists fear we may see the complete loss of sea ice during the summer …


PRESS RELEASE: Antarctic emperor penguins

8 January, 2014

Antarctic emperor penguins may be adapting to warmer temperatures A new study of four Antarctic emperor penguin colonies suggest that unexpected breeding behaviour may be a sign that the birds …