The Weddell Polynya: when will it come back?
- π€ Speaker: Casimir de Lavergne, LOCEAN, Sorbonne University
- π Date & Time: Tuesday 09 June 2020, 11:00 - 12:00
- π Venue: British Antarctic Survey, Zoom
Abstract
In the mid 1970s, an area the size of Italy remained ice free for three winters in a row in the central Weddell Sea near Antarctica, despite atmospheric temperatures under -20ΒΊC. This massive climatic anomaly, called the Weddell Polynya, has not recurred since. Recently, evidence for an impact of anthropogenic emissions on such climatic events, and furtive openings of the winter ice pack in the region, reignited interest in past and future occurrences of the Polynya. In this talk, I will discuss factors controlling polynya formation in the subpolar Southern Ocean and their projected evolution. Implications in the context of current observed trends in Southern Hemisphere climate will be evoked.
Series This talk is part of the British Antarctic Survey - Polar Oceans seminar series series.
Included in Lists
- All Talks (aka the CURE list)
- Biology
- British Antarctic Survey
- British Antarctic Survey, Zoom
- Cambridge Environment
- Climate Science Seminars within Cambridge
- Featured lists
- Life Sciences
- Life Sciences
- ME Seminar
- my_list
- ob366-ai4er
- other talks
- Queens' College Politics Society
- School of Physical Sciences
- Talks related to atmosphere and ocean dynamics and climate science
Note: Ex-directory lists are not shown.
![[Talks.cam]](/static/images/talkslogosmall.gif)

Casimir de Lavergne, LOCEAN, Sorbonne University
Tuesday 09 June 2020, 11:00-12:00