BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Talks.cam//talks.cam.ac.uk// X-WR-CALNAME:Talks.cam BEGIN:VEVENT SUMMARY:Arctic atlantification vs Atlantic Arctification - Professor Yueng -Djern Lenn\, Bangor University DTSTART:20260512T110000Z DTEND:20260512T120000Z UID:TALK246771@talks.cam.ac.uk CONTACT:Carrie Soderman DESCRIPTION:

Northwards heat trans port from the North Atlantic has been a key driver of climate change in th e Arctic Ocean and its marginal seas in a process now commonly known as At lantification. Characteristics of Atlantification in the eastern Arctic i nclude weaker upper ocean stratification\, enhanced sea ice melt and warme r SSTs. Some observations point towards these characteristics spreading i nto the western Arctic\, perhaps ’spicing’ up the Beaufort gyre. At t he same time\, this excess oceanic heat from the Atlantic inflow to the Ar ctic is thought to be contributing to increase freshwater export to the No rth Atlantic. That freshwater\, in combination with Greenland glacier bas al melt driven by recirculating Atlantic water\, is simultaneously changi ng the North Atlantic stratification potentially pushing the upper ocean t owards salinity stratification- an Arctification. We present observation s that track the changes in stratification in the Beaufort gyre and North Atlantic sites of deep water convection over nearly 3 decades and discuss the relative progress of Atlantification and Arctification.

LOCATION:Department of Earth Sciences\, Tilley Lecture Theatre END:VEVENT END:VCALENDAR