BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Tropical Atlantic Ocean Impacts on Antarctic Peninsula Area Climat
 e - David M. Holland (New York University)
DTSTART:20131011T100000Z
DTEND:20131011T110000Z
UID:TALK47109@talks.cam.ac.uk
CONTACT:Dr Dan Jones
DESCRIPTION:Antarctic climate in winter is known to be influenced\,\namong
  other factors\, by changes in radiative forcing and remote Pacific climat
 e variability\, but none explains the observed sea ice trend or Peninsula 
 warming. Looking to the Tropical Atlantic\, a leading mode of Sea Surface 
 Temperature (SST) variability\, the Atlantic Multi-decadal Oscillation (AM
 O)\, has been overlooked. We show that AMO related SST anomalies\, particu
 larly in the Tropical Atlantic\, induce a positive phase response in the S
 outhern Annular Mode\, strengthen the Amundsen Sea Low\, project onto the 
 observed dipole-like sea-ice distribution between the Ross and Amundsen Se
 as\, and contribute to Antarctic Peninsula warming. Support for these find
 ings comes from analysis of observational and reanalysis data\, and indepe
 ndently from atmospheric model simulations forced by specified SSTs. This 
 study suggests that the Tropical/North Atlantic is important for projectio
 ns of future climate variability of Antarctica\, and has possible  implica
 tions for the global thermohaline circulation and sea-level change.
LOCATION:British Antarctic Survey\, conference room
END:VEVENT
END:VCALENDAR