Fri 20 Feb 17:30: Title to be confirmed
Abstract not available
- Speaker: Dr Carola Darwin, Royal College of Music
- Friday 20 February 2026, 17:30-18:30
- Venue: Lady Mitchell Hall, Sidgwick Avenue.
- Series: Darwin College Lecture Series; organiser: Janet Gibson.
Fri 13 Feb 17:30: Song in the Ancient World: Echoes of Religion and Resistance
Abstract not available
- Speaker: Dr Matthew Gordley, Carlow University
- Friday 13 February 2026, 17:30-18:30
- Venue: Lady Mitchell Hall, Sidgwick Avenue.
- Series: Darwin College Lecture Series; organiser: Janet Gibson.
Fri 06 Feb 17:30: Title to be confirmed
Abstract not available
- Speaker: Dr Ibrahim Baltagi, Lebanese American University
- Friday 06 February 2026, 17:30-18:30
- Venue: Lady Mitchell Hall, Sidgwick Avenue.
- Series: Darwin College Lecture Series; organiser: Janet Gibson.
Fri 30 Jan 17:30: Title to be confirmed
Abstract not available
- Speaker: Dr Carole Pegg, University of Cambridge
- Friday 30 January 2026, 17:30-18:30
- Venue: Lady Mitchell Hall, Sidgwick Avenue.
- Series: Darwin College Lecture Series; organiser: Janet Gibson.
Wed 02 Jul 14:00: Rethinking Antarctic Polynya Productivity: The Impact of Ice-Adjacency Effects on NPP Estimates along Icy Coasts
Ocean color-based estimates of Antarctic net primary productivity (NPP) have indicated low nearshore productivity in ice-adjacent waters, contrasting with coupled physical-biogeochemical models. To understand this discrepancy, we assessed satellite records of polynya NPP by comparing field data with two satellite imagery datasets derived using different processing schemes. Our results indicate historical underestimation of chlorophyll a (Chl) for imagery obtained using default atmospheric correction processing within approximately 100 km of ice-covered coastlines due to adjacency effects. Using radiative transfer modeling, we find that biases in ocean color polynya observations due to adjacency effects correspond to the high albedo of ice and snow. When applying an atmospheric correction processing scheme more robust to adjacency contamination, estimates of NPP more than doubled in 65 % of polynyas, especially smaller eastern Antarctic polynyas. Adjacency effects should therefore be managed when analyzing spatial and temporal trends in Antarctic coastal primary productivity.
- Speaker: Hilde Oliver, Woods Hole Oceanographic Institution
- Wednesday 02 July 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Dr Yohei Takano.