New data collected from the seafloor of Ronne Entrance
Discover new insights from the Schmidt Ocean Institute’s 2025 expedition to the Ronne Entrance, revealing how Antarctic seafloor data sheds light on the evolution of West Antarctic ice shelves.
New data collected from the seafloor of Ronne Entrance
08 Oct 2025, 13:00 – 14:00
Join us for the first seminar in the Palaeoclimate Seminar Series 2025/26, featuring Dr Aleksandr (Sasha) Montelli. His talk explores new seafloor data from the Ronne Entrance and what it reveals about the deglacial evolution of three West Antarctic ice shelves.
Watch the Seminar
Catch up on Dr Aleksandr (Sasha) Montelli’s talk, New data collected from the seafloor of Ronne Entrance. In this seminar, Dr Montelli discusses new Antarctic seafloor findings that shed light on the deglacial evolution of three West Antarctic ice shelves.
Dr Montelli will share new data collected during the Schmidt Ocean Institute’s 2025 expedition to the Bellingshausen Sea. The talk will explore how seafloor imagery and samples from the Ronne Entrance reveal the geological, oceanographic, and ecological processes shaping sub-ice shelf environments, offering new insights into the deglacial evolution of three West Antarctic ice shelves.
Dr Aleksandr (Sasha) Montelli is a geophysicist and glaciologist, and Lecturer in Environmental Change at UCL Geography. His interdisciplinary research combines marine geophysical data, sediment cores, and numerical modelling to reconstruct past interactions between ice sheets, the ocean, and the solid Earth. His projects span both hemispheres, including East and West Antarctica, the Eurasian Arctic, and the subarctic Pacific.
"Antarctic ice shelves modulate ice-sheet mass balance through buttressing, yet the hidden cavities underneath remain largely unexplored."
Extent of Seafloor Surveyed
During the January–February 2025 Schmidt Ocean Institute cruise, 4,000 km² of high-resolution multibeam imagery was collected from the Ronne Entrance, alongside 161 hours of ROV footage and 864 water, fauna, and geological samples, revealing previously hi
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Expert in glaciology, ice-sheet and ocean interactions
Palaeoclimate Seminar Series – weekly on Thursdays, 1–2pm, NWW G07
This seminar is part of the UCL Palaeoclimate Seminar Series, held every Thursday during term time from 1–2 pm in G07, North West Wing. The series features leading researchers presenting cutting-edge work in palaeoclimate science. All staff, students, and visitors are welcome, with in-person and online participation available.
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Further information
Ticketing
Open
Cost
Free
Open to
UCL staff
Availability
Yes
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