Wed 22 Oct 15:30: Polar Oceans Seminar Talk - Tarkan Bilge
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 22 October 2025, 15:30-16:30
- Venue: BAS Seminar Room 12.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 22 Oct 15:30: Polar Oceans Seminar Talk - Tarkan Bilge
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 22 October 2025, 15:30-16:30
- Venue: BAS Seminar Room 12.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 24 Sep 15:30: Persistent warming and reduced freshening of the abyssal Southern Ocean. - Kathy Gunn
Recent observations reveal that Antarctic Bottom Water is thinning, warming, freshening, and spreading more slowly northward into the abyssal ocean. Using the most-up-to-date historical data (1985-2024) alongside simulations out to 2050, I review and assess abyssal ocean changes that are ongoing and projected. Between 1985-2024, isopycnals below 3000 m have descended at a rate of -95±5 m/decade, and have been replaced by warmer water, resulting in warming of 0.02±0.02 °C/decade. Freshening of -0.002±0.003 g/kg/decade also occurred, due to meltwater-driven changes in the continental shelf waters. Projections, in line with the latest observations, suggest thinning and warming will persist in response to continued glacial melt. However, freshening slows and even reverses. Meltwater makes shelf waters too light to reach the deep ocean, weakens the shelf-to-abyss connection, alters long-standing trends, and doubles the deep ocean contribution to Southern Ocean sea level rise.
- Speaker: Kathryn Gunn (University of Southampton)
- Wednesday 24 September 2025, 15:30-16:30
- Venue: BAS Seminar Room 1 (http://bit.ly/4pDlm6l).
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 24 Sep 15:30: Persistent warming and reduced freshening of the abyssal Southern Ocean. - Kathy Gunn
Recent observations reveal that Antarctic Bottom Water is thinning, warming, freshening, and spreading more slowly northward into the abyssal ocean. Using the most-up-to-date historical data (1985-2024) alongside simulations out to 2050, I review and assess abyssal ocean changes that are ongoing and projected. Between 1985-2024, isopycnals below 3000 m have descended at a rate of -95±5 m/decade, and have been replaced by warmer water, resulting in warming of 0.02±0.02 °C/decade. Freshening of -0.002±0.003 g/kg/decade also occurred, due to meltwater-driven changes in the continental shelf waters. Projections, in line with the latest observations, suggest thinning and warming will persist in response to continued glacial melt. However, freshening slows and even reverses. Meltwater makes shelf waters too light to reach the deep ocean, weakens the shelf-to-abyss connection, alters long-standing trends, and doubles the deep ocean contribution to Southern Ocean sea level rise.
- Speaker: Kathryn Gunn (University of Southampton)
- Wednesday 24 September 2025, 15:30-16:30
- Venue: BAS Seminar Room 1 (http://bit.ly/4pDlm6l).
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 24 Sep 15:30: Persistent warming and reduced freshening of the abyssal Southern Ocean. - Kathy Gunn
Recent observations reveal that Antarctic Bottom Water is thinning, warming, freshening, and spreading more slowly northward into the abyssal ocean. Using the most-up-to-date historical data (1985-2024) alongside simulations out to 2050, I review and assess abyssal ocean changes that are ongoing and projected. Between 1985-2024, isopycnals below 3000 m have descended at a rate of -95±5 m/decade, and have been replaced by warmer water, resulting in warming of 0.02±0.02 °C/decade. Freshening of -0.002±0.003 g/kg/decade also occurred, due to meltwater-driven changes in the continental shelf waters. Projections, in line with the latest observations, suggest thinning and warming will persist in response to continued glacial melt. However, freshening slows and even reverses. Meltwater makes shelf waters too light to reach the deep ocean, weakens the shelf-to-abyss connection, alters long-standing trends, and doubles the deep ocean contribution to Southern Ocean sea level rise.
- Speaker: Kathryn Gunn (University of Southampton)
- Wednesday 24 September 2025, 15:30-16:30
- Venue: BAS Seminar Room 1 (http://bit.ly/4pDlm6l).
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 15 Oct 14:00: Polar Oceans Seminar Talk - Brad reed and Jan De Rydt
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 15 October 2025, 14:00-15:00
- Venue: BAS Seminar Room 2.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 15 Oct 14:00: Polar Oceans Seminar Talk - Brad reed and Jan De Rydt
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 15 October 2025, 14:00-15:00
- Venue: BAS Seminar Room 2.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 15 Oct 14:00: Polar Oceans Seminar Talk - Brad reed and Jan De Rydt
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 15 October 2025, 14:00-15:00
- Venue: BAS Seminar Room 2.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 17 Dec 14:00: Polar Oceans Seminar Talk - Yohei Takano
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 17 December 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 17 Dec 14:00: Polar Oceans Seminar Talk - Yohei Takano
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 17 December 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 17 Dec 14:00: Polar Oceans Seminar Talk - Yohei Takano
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 17 December 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 03 Dec 14:00: Polar Oceans Seminar Talk - Josue Martinez
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 03 December 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 03 Dec 14:00: Polar Oceans Seminar Talk - Josue Martinez
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 03 December 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 03 Dec 14:00: Polar Oceans Seminar Talk - Josue Martinez
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 03 December 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 19 Nov 14:00: Polar Oceans Seminar Talk - Bethan Wynne-Cattanach
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 19 November 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 19 Nov 14:00: Polar Oceans Seminar Talk - Bethan Wynne-Cattanach
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 19 November 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Wed 19 Nov 14:00: Polar Oceans Seminar Talk - Bethan Wynne-Cattanach
Abstract not available
- Speaker: Speaker to be confirmed
- Wednesday 19 November 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Mon 06 Oct 14:00: Polar Oceans Seminar Talk - Franka Jesse
Abstract not available
- Speaker: Speaker to be confirmed
- Monday 06 October 2025, 14:00-15:00
- Venue: BAS Seminar Room 330b.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Mon 06 Oct 14:00: Polar Oceans Seminar Talk - Franka Jesse
Abstract not available
- Speaker: Speaker to be confirmed
- Monday 06 October 2025, 14:00-15:00
- Venue: BAS Seminar Room 330b.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.
Mon 06 Oct 14:00: Polar Oceans Seminar Talk - Franka Jesse
Abstract not available
- Speaker: Speaker to be confirmed
- Monday 06 October 2025, 14:00-15:00
- Venue: BAS Seminar Room 330b.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Katherine Turner.