Research Topics

Earth’s climate is undergoing rapid transformation, with the ocean playing a central role in this process. More than 90% of the excess heat generated by rising greenhouse gas concentrations is absorbed by the ocean, making it a key regulator of the global climate system. As a result, fundamental ocean properties—such as stratification, circulation patterns, and sea-ice extent—are already changing, interacting with natural modes of climate variability like El Niño–Southern Oscillation and the North Atlantic Oscillation.

Ocean interfaces play a fundamental role in the distribution of matter and energy in the marine environment and are key regulators of biogeochemical cycles and ecosystem functioning. Major interfaces include the ocean–atmosphere boundary, the sediment–water interface, and the ice–water interface, all of which strongly influence a wide range of oceanographic and climatic processes. Additional important transition zones include continental runoff and weathering inputs, as well as internal gradients within the water column such as the thermocline, pycnocline, and redoxcline.

The oceanic lithosphere, with a life cycle of roughly 200 million years, is a fundamental component of the global plate tectonic system. Its formation, transformation, and eventual recycling are closely linked to the movement of energy and matter within the Earth. These processes not only shape the structure of our planet but also influence the formation of natural resources and the occurrence of major natural hazards, including earthquakes, tsunamis, and volcanic activity.

Marine biodiversity is a cornerstone of global ecological health, underpinning essential ecosystem services and supporting livelihoods around the world. However, ocean ecosystems are increasingly under pressure from a range of human-driven and environmental stressors, including overfishing, climate change, ocean warming, acidification, habitat destruction, and pollution. Addressing the interconnected crises of biodiversity loss and climate change has therefore become an urgent global priority.

Advances in technology and innovation are fundamental to addressing today’s key challenges in marine science. Across all major research areas, new methods and instruments continue to drive progress by enabling more precise observations, expanding data collection capabilities, and opening entirely new avenues of investigation. Research vessels play a central role in this process, providing essential platforms for testing, deploying, and refining emerging technologies under real oceanic conditions.