Starts 26 Apr 2022 15:30
Ends 26 Apr 2022 17:00
Central European Time
Zoom Event
Lecture 5 of the
ICTP/UniTN/UniAQ Joint International Seminar Series
on Weather and Climate: From Fundamentals to Applications


Register in advance for this meeting: 
https://zoom.us/meeting/register/tJAuce-orjIuGdY-H52Uoj03paRhzpIoIwBl

Abstract

In this talk I will provide highlights of two different - but overlapping - research topics. Both relate to the processes that drive surface temperature variability.

In the first part I will focus on the role of ocean dynamics in driving sea-surface temperature variability. The key conclusion is that ocean dynamics act - in the net - to damp rather than drive low-frequency SST variability. The upshot is that the observed decadal variability - such as that associated with Atlantic decadal variability and the Pacific Decadal Oscillation - can not be traced to ocean processes.

In the second part I will focus on changes in temperature persistence under climate change. Here the key finding is that temperature persistence is certain to change across the globe, but that the signs of the changes depend critically on various physical processes. I will argue that one key but overlooked process is the changes in radiative damping timescales under climate change.