Organization Natural Environment Research Council

Royal Air Force Volunteer Reserve (pilot | 1975-1978)

Journal of Zoology (editor-in-chief | 2006-2008)

US Navy (Behavioral Response Study | chief scientist | 2007-2008)

Department for Environment, Food and Rural Affairs (DEFRA | chief scientific adviser | 2012-2019)

British Antarctic Survey (science programme director)

Campaign for Science and Engineering (trustee)

First Minister's Environment Council (co-chair)

Hebridean Trust (management council member for over twenty years)

Marine Alliance for Science and Technology for Scotland (MASTS | co-founder | acting director and chairman)

National Oceanography Centre (trustee)

Royal Society of Biology (president)

St Andrews University (professor of biology | Scottish Oceans Institute | co-founder and director)

Science (Board of Reviewing Editors | member)

Scottish Science Advisory Council (member)

UK Research and Innovation (UKRI | board member)

UK Research Integrity Office (chair)

University of Southampton

Rutherford Appleton Laboratory

University of Reading

Marshall Space Flight Center

University of Auckland

Royal Society

Institute of Physics

American Geophysical Union

Royal Astronomical Society

Shotover Wildlife

Canton Secondary School, Cardiff (mathematics teacher | one year)

University College of Wales, Aberystwyth (assistant mathematics lecturer | 1926-1928 | vice-president | 1967-1976)

Meteorological Office (Shoeburyness | 1928 | Porton | 1929-1941 | Head of the Meteorology Section | 1938 | Director General | 1953-1965)

Tank Armament Research (superintendent | 1943-1945)

Radar Research and Development Establishment, Malvern (superintendent | 1945-1947)

Royal Military College of Science, Shrivenham (Bashforth Professor of Mathematical Physics | 1947-1953)

Atmospheric Pollution Research Committee (chairman | 1950-1955)

Beaver Committee (member)

Army Council (scientific adviser | 1951)