CGD Seminar Series: Factors Influencing Regional Changes in Antarctic Sea Ice

Title: Factors Influencing Regional Changes in Antarctic Sea Ice

Speaker: Marika Holland, NCAR

Tuesday, March 20, 2018 - 11:00 a.m.
Mesa Lab, Main Seminar Room

Abstract:
Antarctic sea ice cover has undergone a modest increase since 1979, which is generally consistent with natural variability as diagnosed from climate models. However, this hemispheric trend masks large and nearly compensating regional changes in the sea ice. In some regions, these observed trends are inconsistent with climate models simulations for either pre-industrial or 20th century conditions. This emphasizes the need to better understand regional changes in the Antarctic sea ice. In this talk, I will discuss results from several recent studies that provide new insights on factors driving regional sea ice variations. This includes studies that use climate model simulations to assess the role of anthropogenic stratospheric ozone loss in driving late 20th century regional sea ice change. It also includes analysis of observations to better understand mechanisms that affect sea ice change in different regions and over different timescales. 

Building:

Room Number: 
Main Seminar Room

Type of event:

Will this event be webcast to the public by NCAR|UCAR?: 
Yes - ML-Main Seminar Room - http://ucarconnect.ucar.edu/live
Announcement Timing: 
March 19, 2018 to March 20, 2018
Calendar Timing: 
Tuesday, March 20, 2018 - 11:00am to 12:00pm