Honours/Distinctions/Membership of Societies, Institutions, Committees:


  • Council for Scientific and Industrial Research bursary, 1986 and 1987
  • Foundation for Research Development Honours bursary, 1988
  • Foundation for Research Development PhD bursary, 1992 and 1993
  • University of Natal Graduate Research Assistant Scholarship, 1992 to 1993
  • Named New Zealand co-recipient of the Nobel Peace Prize for contributions to the IPCC, 2007


  • Henry Dyer award for top postgraduate student: 1992
  •  Japan Society for the Promotion of Science fellowship: 1996
  •  World Meteorological Organisation Research Award for Young Scientists: 1999
  • New Zealand delegate to WMO/UNEP 4th ozone research managers meeting, Geneva, April 1999, to the 6th ozone research managers meeting, Vienna, September 2005, and to the 7th ozone research managers meeting, Geneva, May 2008.
  • Honorary Research Fellow: University of Natal: 2002-2009
  • Co-author on WMO/UNEP “Scientific Assessment of Ozone Depletion: 2002”.
  • Invited reviewer of 2003 EU report on ozone-climate interactions: 2002
  • Lead author on IPCC/TEAP special report: “Safeguarding the ozone layer and the global climate system: issues related to hydrofluorocarbons and perfluorocarbons”: 2003-2005
  • Programme leader for FRST funded programme “Drivers and Mitigation of Global Change” (~$5.3M/year): 2002-2005
  • Co-lead author on WMO/UNEP “Scientific Assessment of Ozone Depletion: 2006”
  • Contributing author and invited reviewer of IPCC Working Group I 4th Assessment Report: 2005-2006
  • Programme leader for FRST funded programme “Reducing uncertainty in projections of Antarctic ozone through the 21st century using IPY measurements” ($285k/year): 2007-2009
  • Co-ordinating lead author on WMO/UNEP “Scientific Assessment of Ozone Depletion: 2010”
  • One of three members on the international advisory board for the European Union Framework Programme 7 funded SHIVA (Stratospheric ozone Halogen Impacts in a Varying Atmosphere)
  • Adjunct Professor with the New Zealand Climate Change Research Institute, School of Government, at Victoria University of Wellington

Membership of Societies:

  • American Geophysical Union
  • American Meteorological Society
  • Royal Society of New Zealand
  • New Zealand Association of Scientists
  • New Zealand Meteorological Society


  • NIWA research development committee: 2000-2003
  • NASA Solar Occultation Satellite Science Team: 2003-2009
  • International Commission on the Middle Atmosphere (ICMA): 2003-2011
  • International Ozone Commission: 2004-2012
  • Stratospheric Processes And their Role in Climate (SPARC) Scientific Steering Group: 2007-2012. SPARC is 1 of 4 core projects of the World Climate Research Programme.
  • Co-Chair of SPARC: 2012-present
  • New Zealand national GCOS coordinator: 2008-2010
  • Associate editor for Journal of Climate.
  • Associate editor for Journal of Geophysical Research

 Professional Positions Held:

  • Oct 2009-present       Director, Bodeker Scientific
  • 1998-Sep 2009          Scientist, NIWA
  • 1997-1997                 JSPS research fellow, National Institute for Environmental Studies, Japan
  • 1994-1996                 Scientist, NIWA
  • 1994                         Lecturer, University of Natal, course in Dynamic Meteorology
  • 1989-1992                 Scientist, Department of Environmental Affairs, South Africa

 Present Research/Professional Speciality: 

  • Detection and attribution of long-term changes in stratospheric composition and dynamics; statistical analysis of trends in stratospheric trace species and in particular ozone trends; global analyses of trends in total column ozone measured by satellite; trends in lower stratospheric temperature e.g. from the NCEP/NCAR reanalysis project.
  • Analysis of connections between changes in stratospheric ozone and changes in surface UV radiation; development of the NIWA UV Atlas; measurement and modelling of surface UV and broadband radiation including assessment of solar energy resource.
  • Development of solar radiative transfer models to: (1) assess the effect of long-term changes in total column ozone and cloud cover on surface erythemal irradiance; (2) calculate photolysis rates required as input to atmospheric chemistry models (written a delta-Eddington radiative transfer model); (3) calculate airmass factors used in ground-based differential absorption spectroscopy (written a Monte Carlo radiative transfer model).
  • Investigation of feedbacks between ozone and temperature changes to better understand the connections between stratospheric change and climate change; oversight of coupled chemistry-climate modelling project at NIWA - initiated this project in July 2001; development and applications of simple climate models.
  • Analysis of the dynamical attributes of the polar vortices and the interaction between midlatitude planetary wave activity, the structure of the polar vortices and the resultant interannual difference in the severity of polar ozone depletion.
  • Participation in satellite validation campaigns including TOMS, GOME, ILAS, HALOE, SBUV, ENVISAT, SAGE; analyses of satellite measurements of stratospheric trace gases in dynamical coordinate frames e.g. remapping to equivalent latitude for scientific analyses and for satellite validation.
Supervision of PhD Students:


Subpages (1): Peer-reviewed Literature