BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Modelling ocean connectivity and future change at the Antarctic ma
 rgins - Hannah Dawson\, University of Tasmania
DTSTART:20240522T120000Z
DTEND:20240522T130000Z
UID:TALK216397@talks.cam.ac.uk
CONTACT:Dr Birgit Rogalla
DESCRIPTION:Many Antarctic margin processes are changing including acceler
 ated rates of ice sheet mass loss and a slowdown in the production of dens
 e bottom waters. Although these changes are localised around the Antarctic
  continent\, they have the potential to remotely disrupt downstream proces
 ses of climatic importance via advective connections along the shelf. In t
 he first part of this talk I will present some work from my PhD thesis tha
 t investigates ocean connectivity around the Antarctic margins from a mode
 lling perspective. The results from this work suggest there is widespread 
 zonal connectivity between adjacent regions of the shelf\, and that such c
 onnectivity is important to consider when interpreting and linking observe
 d changes with upstream drivers. In the second part of the talk I will pre
 sent results from simulations that investigate future climate-driven chang
 es to Antarctic margin processes under different emission scenarios\, with
  and without future freshwater contributions. Such changes are poorly cons
 trained because many climate models fail to adequately resolve key feature
 s of the Antarctic margin including the narrow westward flowing currents\,
  and the formation of both dense and abyssal water masses. Results from th
 ese simulations suggest that even under a mid-range emissions scenario wit
 hout additional meltwater forcing\, substantial changes in Antarctic conti
 nental shelf circulation and hydrography are possible by the end of this c
 entury.
LOCATION:BAS Seminar Room 1\; https://bas-ac-uk.zoom.us/j/91268978510
END:VEVENT
END:VCALENDAR