I am a marine biogeochemist with wider interests in the cycling of climatically active trace gases, organic matter geochemistry and aquatic photochemical processes. My early studies at the former Water Technology Dept., Karlsruhe (now KIT) stimulated my interest in aquatic systems. My research in marine biogeochemistry started with studies of marine sulphur gas cycling at the Max Planck Inst for Chemistry. In Newcastle, I expanded my work into areas of dissolved organic matter cycling and marine photochemistry, largely with funding from NERC, and also developed interests in greenhouse gas cycling and nitrogen biogeochemistry. I am currently a member of NERC MethaneNet and EU COST
action 735: Tools for Assessing Global Air Sea Fluxes of Climate and Air
Pollution Relevant Gases, have served on the NERC Peer Review College 2008-2012 and on the Editorial Board of Marine Science since 2011.
Lecturer in Marine Biogeochemistry
School Safety Officer
Certificate for Learning and Teaching in Higher Education (CLTHE), Newcastle University, 2002
since 2001 Teaching and Research Officer (MAST)
1998-2001 Senior Research Associate (MAST)
1996-1998 Postdoctoral Research Associate (MAST)
1994-1996 Postdoctoral Research Associate (Max Planck Inst f Chemistry)
1990-1994 Research Associate (Max Planck Institute for Chemistry)
American Geophysical Union, Life Member
European Geophysical Union
Challenger Society for Marine Science, UK
International Humic Substances Society
Fellow of The Higher Education Academy
Marine Biogeochemistry, Marine Trace Gas Emissions, Organic Matter Cycling, Aquatic Photochemistry
My research in Marine Biogeochemistry centres on issues of Global Change and its interactions with the coastal and open ocean. Research activities include:
- biogeochemical cycling of marine sulphur gases such as dimethyl sulphide and carbonyl sulphide
- coastal greenhouse gas emissions
- role of dissolved organic carbon inputs and transformations in the global carbon cycle
- photochemical production of carbon, nitrogen and sulphur species
- characterisation and photochemical degradation of dissolved organic matter
- impact of dissolved organic nitrogen transformations on the marine nutrient budget
Recent and ongoing projects:The impact of dissolved organic matter photochemistry on the marine nitrogen cycle (NERC, £142k, 1999-2002)(NERC-GANE thematic) Ammonium photoproduction in oligotrophic seas (NERC, £15k, 2002–2003)
Photobleaching rates of chromophoric dissolved organic matter (UNESCO Keizo Obuchi fellowship to Dr. Shalini Akella, 2004)
Completed PhD supervisions:
- Paul Mann (2010) Ammonium photoproduction and CDOM biogeochemistry
- Clare Swift (2009) Environmental impact of seawater scrubbing
- Anastasios Anestis (2008) Estuarine nitrogen cycling
- Louise Tizzard (2008) Coastal methane from geological sources
- Emma Suddick (2007) UHI / Aberdeen University,
Ammonium photoproduction in peatland ecosystems
(co-supervised with Stuart Gibb, ERI, Thurso, UHI)
- Julian Pillans (2006) Dimethyl sulphide photo-oxidation
- Grant Forster (2006) Methane & nitrous oxide
- Robert Spencer (2005) Biogeochemistry of dissolved organic matter and inorganic nitrogen in two N.E. UK estuaries
- Vas Kitidis (2002) CDOM dynamics and photoammonification in the marine environment
- Aron P. Stubbins (2001) Aspects of aquatic CO photoproduction from CDOM
Editorial Board member, Marine Science, Scientific & Academic Publishing since 2011.
Member of the NERC Peer Review College since 2008.
Invited member of the EU network COST (European Cooperation in the Field of Scientific and Technical Research), Action 735, "Tools for Assessing Global Air–Sea Fluxes of Climate and Air Pollution Relevant Gases", 2006-2011.
Marine Sciences Core Member of the NERC Network on Fluorescence for the Water Sciences, lead by A. Baker & J. Lead (U. Birmingham) 2006-9.
EGU General Assemblies 2006-2009: Session Convener "Biogeochemistry of dissolved organic matter".
For the latest session programme please see EGU 2009 session BG 1.5.
Invited member of the CARBOEUROPE-GHG initiative on greenhouse gas emissions from the European Coastal Zone (2002-5). CARBOEUROPE Web Site.
MST1003/13/14 Field and Laboratory Techniques
MST1007 Introductory Oceanography, Module Leader
MST1012 Research Skills
MST2005 Biological Oceanography, Module Leader
MST2011 Marine Practical Skills
MST3011/15/16 Advanced Marine Biology/Zoology/Oceanography, Module Leader
MST3017 Global Marine Science
MST3018 Marine Ecosystem Modelling, Module Leader
MST3021 North Sea Marine Science
MST3019 Research Projects Overseas
MST3095/96/99 Research Projects
MST8011 Critical Appraisal of Coastal Production Systems