The ocean surrounding Antarctica plays a crucial role in the climate system. Along parts of the Antarctic coast, very cold and salty water becomes dense enough to sink all the way to the ocean floor. This process forms Antarctic Bottom Water: the deepest water mass in the global ocean, representing about 40% of its total …[Read More]
Chlorophyll-a (chl-a), as the dominant photosynthetic pigment within phytoplankton, provides an indication of the phytoplankton biomass and are essential for understanding global and regional changes in primary production in the oceans. Multiple ocean colour satellites have unlocked routine synoptical scale observations of chl-a which now extends from 1997 to the present day. Differing numbers of …[Read More]
The Indian Ocean Dipole (IOD) is generally considered a seasonal mode of variability, developing and decaying within a single year. During 2021–2022, however, negative IOD conditions persisted for approximately 19 months (Figure 1, top left), making this event the longest—and among the strongest—observed since reliable records began. This unusual persistence highlights important aspects of ocean–atmosphere …[Read More]
Mesoscale eddies and Southern Ocean carbon sink The Southern Ocean takes up more than a quarter of the anthropogenic CO₂. Its powerful westerly winds, deep overturning circulation, and intense mixing make it a major player in Earth’s climate system. But beneath this large-scale picture lies a world of swirling, dynamic structures that constantly reshape the …[Read More]
Phytoplankton are tiny, single-celled organisms mainly found in the ocean’s sunlit surface, where they grow through photosynthesis, forming the marine food web’s base and regulating Earth’s climate by absorbing carbon dioxide. Their seasonal growth cycles—known as “blooms”—drive marine productivity and influence everything from carbon uptake to food security. But how can we track these blooms …[Read More]
The Vendée Globe began on November 10th, with 44 participants embarking on the world’s toughest sailing race. This non-stop, single-handed round-the-world yacht race challenges skippers to circumnavigate the Southern Ocean. The race starts in France, traverses the North Atlantic, and heads directly into the Southern Ocean. Despite taking place during the austral summer, the conditions …[Read More]
„observations not taken today are lost forever.“ (Wunsch et al., 2013) The Critical Need for CO2 Measurements Imagine the ocean as a giant lung, breathing in carbon dioxide (CO2) and helping to keep our planet cool. It absorbs about 25% of the CO2 emissions from human activities, playing a crucial role in mitigating the pace …[Read More]
I didn’t always know that I would become an oceanographer when I grew up, but I knew I would be doing ‘Science’. I was born and raised in Paris, France. While growing up, I was always interested in Science, from watching documentaries about the universe or nature, to attending science events at museums. While Science …[Read More]
During the summer Liam Brannigan contributed to an EGU careers workshop. Liam has had a diverse career, following his masters in maths at Edinburgh University he worked for several years as an investment consultant. In 2010 however, he fancied a change and embarked on a career in physical oceanography, completing his MSc at Bangor University …[Read More]
Back in August, I attended Oceanhackweek 2020. As an oceanographer by trade and free software nerd by heart, I loved the idea of an event that combined the two. I looked forward to learning from other oceanographers and coders, and perhaps giving something back to the free software community. What is a hackweek/hackathon? If you …[Read More]
