Personal profile


I did a first degree in Chemistry at Reading then an MSc in Oceanography at Southampton before starting work for the Clyde River Purification Board (now part of SEPA) in Glasgow as an assistant marine chemist. I then moved to Bermuda working for the Bermuda Biological Station initially on coastal pollution and latterly also on nutrient and trace metal element offshore. I completed a PhD from Southampton on this work and came to UEA in 1985 as a lecturer and I am still here and now a Professor. I was director of the Laboratory for Global Marine and Atmospheric Chemistry (LGMAC) 2001-2007. I was appointed as NERC Theme Leader for Earth System Science in 2007-2012. I have been a member of the Earth and Environmental Sciences REF panel. I was COAS sector head 2014-2017 and director of the Future Earth European Centre at UEA.  I was a member of the DEFRA Scientific Advisory Council until 2019. I am currently a Member of the Broads Authority. I was awarded the Challenger medal by the UK Challenger Society in 2006 and made an Honorary Member of the Society in 2019. I became a Fellow of the Royal Society of Chemistry in 2012 and a Fellow of the American Geophysical Union in 2016. I retired in 2018 and was made an Emeritus Professor in 2019. I still maintain a research presence within UEA. I was awarded an OBE 2020 New Year’s Honours list for “services to marine and atmospheric science”


University of Reading, 1974, B.Sc. (Hons.) Chemistry with subsidiary Geology, First Class
University of Southampton, 1975, M.Sc. Oceanography
                                        1986, Ph.D. Oceanography. 

Thesis.  Studies of trace elements in the  Sargasso Sea and the mid Atlantic Bight.

1975-1979:   Assistant Marine Chemist, Clyde River Purification Board, Glasgow, U.K.

1979-1983:   Research Assistant, Bermuda Biological Station, Bermuda.

1983-1985:   Research Associate, Bermuda Biological Station, Bermuda.

1985-1993:   Lecturer, School of Environmental Sciences, University of East Anglia.

1993-1998:   Reader, School of Environmental Sciences, University of East Anglia.

1993-            British Association Media Fellow at BBC World Service Science Unit.

1998-            Professor, School of Environmental Sciences, University of East Anglia.

2001-2007:   Director UEA Laboratory for Global Marine and Atmospheric Chemistry.

2007-2012:   NERC Theme Leader for Earth System Science.

2014 August 1- November 5:  Head of School of Environmental Sciences

2014- 2017      Sector Head UEA Centre for Ocean and Atmospheric Sciences

2015- 2017      Director Future Earth European Centre.

2018                Retired

2019                Emeritus Professor of Environmental Sciences, University of East Anglia

2019                Appointed as a Secretary of State nominee to the Broads Authority 


PhD Positions None now I am retired


Key Research Interests

My research interests focus on ocean biogeochemistry particularly two aspects.

In the first of these we measure on ships and at land sites atmospheric inputs to the ocean of metals and nutrients and try to understand their impacts on ocean biogeochemistry. This leads to a broader interest in the cycling of nutrients and carbon in the surface ocean.

In the second aspect we try to quantify nutrient flows through estuaries and coastal waters now and in the past and use this information to support coastal management, particularly in relation to management of intertidal habitats working with ENV Environmental Economists.

Significant Publications

  • Wadley, M. R., Stevens, D. P., Jickells, T. D., Hughes, C., Chance, R., and Hepach, H.,. (2020). A Global Model for Iodine Speciation in the Upper Ocean. Global Biogeochemical Cycles, 34, e2019GB006467.
  • Luisetti T., Ferrini, S., Grilli, G.,  Jickells, T., Kennedy, H., Kröger , S.., Lorenzoni, I., Milligan, B., van der Molen, J., Parker, E.R., Pryce, T., Turner, K.,  and  Tyllianakis E. (2020) Climate action requires new accounting guidance and governance frameworks to manage carbon in shelf seas Nature Comms NCOMMS-19-34445B
  • Ito, A,, Myriokefalitakis, S., Kanakidou, M., Mahowald, N.M., Scanza, R.A.,Hamilton, D.S., Baker, A.R, Jckells, T. Sarin, M., Bikkina, S., Gao, Y, Shelley, R.U, Buck, C.S, Landing, W.Mi, Bowie, A.R., Perron, M.M.G, Guieu, C, Meskhidze, N., Johnson, M.S, Feng, Y, Kok, J.F., Nenes, A, and Duce, R.A. (2019) Pyrogenic iron: The missing link to high iron solubility in aerosols. Science Advances  5, no. 5, eaau7671 DOI: 10.1126/sciadv.aau7671.
  • Jickells T and Moore C.M. (2015) The importance of atmospheric deposition for ocean productivity. Annual Review of Ecology, Evolution and Systematics 46, 481-501 DOI: 10.1146/annurev-ecolsys-112414-054118.

     Lin, C.T., Jickells, T.D., Baker, A.R., Marca, A. and Johnson, M.T. (2016) Aerosol isotopic ammonium signatures over the remote Atlantic Ocean. Atmos. Environ. 133, 165-169.

    Moore, C.M., Mills, M.M., Arrigo, K.R., Berman-Frank, I., Bopp, L., Boyd, P.W., Galbraith, E.D., Geider, R.J., Guieu, C., Jccard, S.L., Jickells, T.D., la Roche, J., Lenton, T.M., Mahowald, N.M., Maranon, E., Marinov, I., Moore, J.K., Nakatsuka, T., Oschlies, A., Saito, M.A., Thingstad, T.F., Tsuda, A., Ulloa, O. (2013) Processes and patterns of oceanic nutrient limitation. Nature Geoscience. 6(9) 701-710, doi:10.1038/ngeo1765.

    Baker, A.R., Adams, C., Bell, T.G., Jickells, T.D. and Ganzeveld, L. (2014) Estimation of atmospheric nutrient inputs to the Atlantic Ocean from 50°N to 50°S based on large-scale field sampling: Iron and other dust-associated elements. Global Biogeochem. Cycl. 27(3) 755-767, doi: 10.1002/gbc.20062.

    Ussher, S.J., Achterberg, E.P., Powell, C., Baker, A.R., Jickells, T.D., Torres, R. and Worsfold, P.J. (2014). Impact of atmospheric deposition on teh contrasting iron biogeochemistry of the South and North Atlantic Ocean. Global Biogeochem. Cycl. DOI: 10.1002/gbc.20056.

    Jickells T. D., Andrews J. E., Parkes, D.J., Suratman, S., Aziz, A.A. and Hee, Y.Y. (2014) Nutrient transport through estuaries: The importance of the estuarine geography. Est. Coastal Shelf Sci. in press

    Johnson, M.T., Greenwood, N., Sivyer, D.B., Thomson, M., Reeve, A., Weston, K., Jickells, T.D. (2012) Characterising the seasonal cycle of dissolved organic nitrogen using Cefas SmartBuoy high-resolution time-series samples from the southern North Sea. Biogeochemistry DOI: 10.1007/s10533-012-9738-8.
  • Queste, B.Y. , Fernand, L., Jickells, T.D., Heywood, K.J. (2012) Spatial extent and historical context of North Sea oxygen depletion in August 2010. Biogeochemistry DOI: 10.1007/s10533-012-9738-8.
  • Jickells, T.D. and Weston, K (2011) Nitrogen Cycle – External Cycling: Losses and gains. In Wolanski E and McLusky DS, (eds.) Treatise on Estuarine and Coastal Science, Vol 5, pp 261-278 Waltham: Academic Press.
  • Andrews JE, Jickells TD, Adams CA, Parkes DJ, and Kelly SD (2011) Sediment Record and Storage of Organic Carbon and the Nutrient Elements (N, P, and Si) in Estuaries and Near-Coastal Seas. In: Wolanski E and McLusky DS (eds.) Treatise on Estuarine and Coastal Science, Vol 4, pp. 9–38. Waltham: Academic Press.
  • Baker, A.R., Lesworth, T., Adams, C., Jickells, T.D. and Ganzeveld, L. (2010) Estimation of atmospheric nutrient inputs to the Atlantic Ocean from 50°N to 50°S based on large-scale field sampling: Fixed nitrogen and dry deposition of phosphorus. Global Biogeochemical Cycles24, GB3006,doi:10.1029/2009GB003634.
  • Shi, Z., Krom, M.D., Bonneville, S. Baker, A.R., Jickells, T.D. and Benning, L.G. (2009) Formation of iron nanoparticles and increase in iron reactivity in mineral dust during simulated cloud processing. Environ. Sci. Technol. 43, 6592-6596.
  • Jickells, T.D.. Liss , P.S. Broadgate W., Turner S., Kettle, A.J. Read, J. Baker, J. Cardenas, L.M., Carse F,  Hamren-Larssen, M., Spokes, L., Steinke M., Thompson A., Watson A., Archer S.D., Bellerby R.G.J., Law C.S Nightingale., P.D., Liddicoat M.I., Widdicombe C.E., Bowie A., Gilpin L.C., Moncoiffe´ G., Savidge G., Preston T., Hadziabdic P., Frost T., Upstill-Goddard R., Pedro´s-Alio ´ C., Simo´ R., Jackson A.,. Allen A., DeGrandpre M.D. (2008)  A Lagrangian biogeochemical study of an eddy in the Northeast Atlantic.Progress in Oceanography 76, 366-398.
  • Duce, R., LaRoche, J., Altieri, K., Arrigo, K., Baker, A., Capone, D., Cornell, S., Dentener, F., Galloway, J., Ganeshram, R., Geider, R., Jickells, T., Kuypers, M., Langlois, R., Liss, P., Liu, S., Middleburg, J., Moore, C,M,, Nickovic, S., Oschlies, A., Pedersen, T., Prospero, J., Schlitzer, R., Seitzinger, S., Sorenson, L., Uematsu, M., Ulloa, O., Ward, B and Zamora, L. (2008) Impacts of atmospheric nitrogen on the open ocean. Science 320, 893-897.
  • Shepherd, D., Burgess, D., Jickells, T., Andrews, J., Cave, R., Turner, R.K., Aldridge, J., Parker, E.R. and Young, E. (2007) Modelling the effects and economics of managed realignment on the cycling and storage of nutrients, carbon and sediments in the Blackwater estuary UK. Est. Coastal Shelf Sci73, 355-367.
  • Boyd, P.W., Jickells, T., Law, C.S., Blain, S., Boyle, E.A., Buessler, K.O., Coale, K.H., Cullen, J.J., deBaar, H.J.W., Follows, M., Harvey, M., Lancelot, C., Levasseur, M., Owens, N.J.P., Pollard, R., Rivkin, R.B., Sarmiento, J., Schoemann, V., Smetacek, V., Takeda, S., Tsuda, A., Turner, S. And Watson, A.J. (2007) Mesocale iron enrichment experiments 1993-2005: synthesis and future directions. Science 315, 612-617.doi:10.1126/science.1131669
  • M. Mahowald, P. Artaxo, A.R. Baker, T.D. Jickells, G. Okin, J.T. Randerson & A. Townsend. (2005). Impacts of biomass burning and land use on Amazonian atmospheric phosphorus cycling and deposition,Global Biogeochemical Cycles 19, GB4030, doi:10.1029/2005GB002541.
  • Jickells T.D., An, Z.S., Andersen, K.K., Baker, A.R., Bergametti, G., Brooks, N., Cao, J.J., Boyd, P.W., Duce, R.A., Hunter, K.A., Kawahata, H., Kubilay, N., laRoche, J., Liss, P.S., Mahowald, N., Prospero, J.M., Ridgwell, A.J., Tegen, I. and Torres, R. (2005) Global Iron Connections Between Desert Dust, Ocean Biogeochemistry and Climate, Science 208, 65-71. doi: 10.1126/science.1105959 
  • Weston, K., Jickells, T.D., Fernand, L. and Parker, E.R. (2004) Nitrogen cycling in the southern North Sea: consequences for total nitrogen transport. Est. Coastal Shelf Sci59, 559-573. doi: 10.1016/j.ecss.2003.11.002 
  • Jickells, T. D., Kelly, S. D., Baker, A. R., Biswas, K., Dennis, P. F., Spokes, L. J., Witt, M., Yeatman, S. G. (2003) Isotopic evidence for a marine ammonia source. Geophys. Res. Lett30(7) doi: 10.1029/2002GL016728

Publications: EPrints Digital Repository

Key Responsibilities

  • Director of Research (January-June 2014)

Areas of Expertise

Biogeochemical cycling; chemical studies of the environment, particularly rainwater; coastal and ocean waters; deep-sea sedimentation.

Teaching Interests

I taught on environmental chemistry courses in Year 1 (Earth as a chemical system), Year 2 (Chemical Oceanography) and Year 3 (Pollution Toxicology and Chemistry. I'm now retired.

I have co-written two text books:
An Introduction to Environmental Chemistry (2nd edition published 2004) Andrews, Brimblecombe, Jickells, Liss and Reid) Blackwell’s and Marine Geochemistry 3rd edition (published 2012) Roy Chester and Tim Jickells Wiley

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 11 - Sustainable Cities and Communities
  • SDG 13 - Climate Action
  • SDG 15 - Life on Land

Collaborations and top research areas from the last five years

Recent external collaboration on country/territory level. Dive into details by clicking on the dots or