School of Physical and Chemical Sciences Te Kura Matū Seminar Series

Interactions between changing weather patterns and the Antarctic Cryosphere in the Ross Sea Region

Speaker

Ethan Dale

Institute

SPCS - PhD Oral – studied under the supervision of Adrian McDonald

Time & Place

Fri, 08 Nov 2019 11:00:37 NZDT in West 701, Level 7

All are welcome

Abstract

We investigate the sensitivity of the cryosphere to changing weather patterns in the Ross Sea. With a primary focus on the production and persistence of sea ice and precipitation events. Changes are expected as a result of climate variability, and trends in the occurrence of storms.

Strong winds over this region result in the advection of sea ice exposing the warm ocean below, resulting in sea ice production. The influence of this polynya on the local atmosphere was investigated using balloon observations and forecast model data. Trajectory analysis was used to investigate moisture transport over the Ross Sea.