Stormier Southern Hemisphere induced by topography and ocean circulation

Online seminar by Prof. Tiffany Shaw from The University of Chicago

08 June 2022
KST 10:00 – 11:00

Join us online: Meeting ID: 963 1971 8098 Passcode: 997181

Storms and extreme weather events are stronger in the Southern Hemisphere than in the Northern Hemisphere. In this talk I will combine an energetic perspective, observations and climate model simulations to show that this defining feature of Earth’s present-day climate is caused by nearly equal contributions from topography and the ocean circulation, which transports energy from the Southern to the Northern Hemisphere. I will also show the recent increase in Southern Hemisphere storminess is connected to changes in implied ocean energy transport in the Southern Ocean. Northern Hemisphere storminess has not changed significantly because the ocean changes are opposed by the absorption of sunlight due to the loss of sea ice and snow. Both trends are consistent with the transient climate response to increased CO2.