External professional responsibilities:

• Member of the Met Office Scientific Advisory Committee

• Member of World Weather Research Programme's Science Steering Group of the Polar Predictability Project

• Former member of the Facility for Airborne Atmospheric Measurement Strategy Committee

• Former Co-Chair of Scientific Steering Group of JWCRP - the Joint Weather and Climate Research Programme of the Met Office and NERC

• Former member of US-CLIVAR's Working Group on High Latitude Surface Fluxes

• Former Co-Chair of the World Climate Research Programme's CLIVAR / CliC / SCAR Southern Ocean region Implementation Panel

• Former Member of the American Meteorological Society's Committee on Polar Meteorology and Oceanography