Steven is a senior research scientist within a group led by Nick Dunstone. The group works to understand the mechanisms that drive regional climate variability in different parts of the globe. Steven is currently carrying out research into the influence of the El Nino Southern Oscillation on summer rainfall in China and on the late winter north Atlantic. He is also looking at resonance of synoptic scale waves.
Prior to this, Steven worked on stratospheric dynamics, climate and variability, specifically researching the influence of the stratosphere on surface climate. He also led a Process Evaluation Group to better understand the physical processes influencing the tropical tropopause temperature and lower stratospheric water vapour concentrations in the Met Office Unified Model.
Steven was a contributing author for the 2010 and 2014 WMO ozone assessment reports, and recently published a paper on the impacts of nudging the dynamics in chemistry-climate model simulations.