Biography

My research interests span many aspects of biogeochemistry, with a focus on the marine environment.  I currently hold a lectureship in marine sciences at UEA, jointly funded by Cefas, the Centre for Environment, Fisheries and Aquaculture Science, based in Lowestoft on the Suffolk Coast.

After studying Chemistry at the University of York I moved to UEA to complete my studies in Environmental Sciences in 1997.  Following a year or so working in a graphic design company I returned to UEA to study for a PhD in marine and atmospheric biogeochemistry, which I completed in 2004.  Since then I worked as a postdoctoral research associate on various national and international biogeochemistry and Earth-system science focussed projects until taking up my current position in January 2013.

My current position as Cefas-UEA lecturer in marine science (from Jan 2013) brings a strongly applied component to my research. In particular I work with colleagues at Cefas on understanding the biogeochemistry of our regional shelf seas. The biogeochemistry underpins the ability of our seas to process pollutants, store carbon and support biodiversity and fisheries production. We use numerical modelling (e.g. NEMO-ERSEM) and marine monitoring e.g. from Cefas SmartBuoy platforms to better understand our coastal and shelf seas. 

 

Career History

  • Lecturer Jan 2013-present
  • Postdoctoral research 2004-2013 (marine biogeochemistry, air-sea exchange, Earth-system modelling)
  • PhD 2004
  • BSc 2000

 

Academic Background

I am a chemist and environmental scientist by training.  I developed a strong interest in biogeochemistry and Earth-system science during my undergraduate degree and pursued this through further study and postdoctoral work at UEA over the last 10 years. 

PhD Positions

Click here for current PhD opportunities in the School of Environmental Sciences. However, feel free to email me to discuss projects outside these areas and alternative sources of funding.

All Publications

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Hull, T., Greenwood, N., Kaiser, J., Johnson, M.

(2016)

Uncertainty and sensitivity in optode-based shelf-sea net community production estimates

in Biogeosciences

13.

pp. 943-959

Full Text UEA Repository

(Article)


Lin, C., Jickells, T., Baker, A., Marca, A., Johnson, M.

(2016)

Aerosol isotopic ammonium signatures over the remote Atlantic Ocean

in Atmospheric Environment

133.

pp. 165–169

Full Text UEA Repository

(Article)


Ostle, C., Johnson, M., Landschützer, P., Schuster, U., Hartman, S., Hull, T., Robinson, C.

(2015)

Net community production in the North Atlantic Ocean derived from Volunteer Observing Ship data

in Global Biogeochemical Cycles

29.

pp. 80-95

Full Text UEA Repository

(Article)


Legge, O. J., Bakker, D. C. E., Johnson, M. T., Meredith, M. P., Venables, H. J., Brown, P. J., Lee, G. A.

(2015)

The seasonal cycle of ocean-atmosphere CO2 Flux in Ryder Bay, West Antarctic Peninsula.

in Geophysical Research Letters

42.

pp. 2934-2942

Full Text UEA Repository

(Article)


Paulot, F., Jacob, D., Johnson, M., Bell, T., Baker, A., Keene, W., Lima, I., Doney, S., Stock, C.

(2015)

Global oceanic emission of ammonia: constraints from seawater and atmospheric observations

in Global Biogeochemical Cycles

29.

pp. 1165-1178

Full Text UEA Repository

(Article)


Hull, T., Greenwood, N., Kaiser, J., Johnson, M.

(2015)

Uncertainty and sensitivity in optode-based shelf-sea net community production estimates

in Biogeosciences Discussions

12.

pp. 15611-15654

Full Text UEA Repository

(Article)


Breviere, E. H. G., Bakker, D. C. E., Bange, H. W., Bates, T. S., Bell, T. G., Boyd, P. W., Duce, R. A., Garcon, V., Johnson, M. T., Law, C. S., Marandino, C. A., Olsen, A., Quack, B., Quinn, P. K., Sabine, C. L., Saltzman, E. S.

(2015)

Surface ocean-lower atmosphere study: Scientific synthesis and contribution to Earth system science

in Anthropocene

12.

pp. 54–68

Full Text UEA Repository

(Article)


Le Quéré, C., Capstick, S., Corner, A., Cutting, D., Johnson, M., Minns, A., Schroeder, H., Walker-Springett, K., Whitmarsh, L., Wood, R.

(2015)

Towards a culture of low-carbon research for the 21st Century

()


Beale, R., Johnson, M., Liss, P., Nightingale, P.

(2014)

Air–Sea Exchange of Marine Trace Gases

Elsevier

pp. 53-92

ISBN 978-0-08-098300-4

Full Text UEA Repository

(Chapter)


Liss, P. S. (ed.), Johnson, M. T. (ed.)

(2014)

Ocean-Atmosphere Interactions of Gases and Particles

Springer-Verlag Berlin Heidelberg

ISBN 978-3-642-25642-4

Full Text UEA Repository

(Book)


Jiao, N., Robinson, C., Azam, F., Thomas, H., Baltar, F., Dang, H., Hardman-Mountford, N. J., Johnson, M., Kirchman, D. L., Koch, B. P., Legendre, L., Li, C., Liu, J., Luo, T., Luo, Y., Mitra, A., Romanou, A., Tang, K., Wang, X., Zhang, C., Zhang, R.

(2014)

Mechanisms of microbial carbon sequestration in the ocean – future research directions

in Biogeosciences

11.

pp. 5285-5306

Full Text UEA Repository

(Article)


Yang, M., Beale, R., Liss, P., Johnson, M., Blomquist, B., Nightingale, P.

(2014)

Air–sea fluxes of oxygenated volatile organic compounds across the Atlantic Ocean

in Atmospheric Chemistry and Physics Discussions

14.

pp. 8015-8061

Full Text UEA Repository

(Article)


Hughes, C., Johnson, M., Utting, R., Turner, S., Malin, G., Clarke, A., Liss, P.

(2013)

Microbial control of bromocarbon concentrations in coastal waters of the western Antarctic Peninsula

in Marine Chemistry

151.

pp. 35-46

Full Text UEA Repository

(Article)


Johnson, M., Greenwood, N., Sivyer, D., Thomson, M., Reeve, A., Weston, K., Jickells, T., Johnson, M.

(2013)

Characterising the seasonal cycle of dissolved organic nitrogen using Cefas SmartBuoy high-resolution time-series samples from the southern North Sea

in Biogeochemistry

113.

pp. 23-36

Full Text UEA Repository

(Article)


Hughes, C., Johnson, M., Von Glasow, R., Chance, R., Atkinson, H., Souster, T., Lee, G., Clarke, A., Meredith, M., Venables, H., Turner, S., Malin, G., Liss, P.

(2012)

Climate-induced change in biogenic bromine emissions from the Antarctic marine biosphere

in Global Biogeochemical Cycles

26.

pp. GB3019

Full Text UEA Repository

(Article)


Lenton, T. M., Crouch, M., Johnson, M., Pires, N., Dolan, L.

(2012)

First plants cooled the Ordovician

in Nature Geoscience

5.

pp. 86-89

Full Text UEA Repository

(Article)


Johnson, M., Hughes, C., Bell, T., Liss, P.

(2011)

A Rumsfeldian analysis of uncertainty in air-sea gas exchange

Kyoto University Press

pp. 464-485

UEA Repository

(Chapter)


Hughes, C., Kettle, A., Unazi, G., Weston, K., Jones, M., Johnson, M.

(2010)

Seasonal variations in the concentrations of methyl and ethyl nitrate in a shallow freshwater lake

in Limnology and Oceanography

55.

pp. 305-314

Full Text UEA Repository

(Article)


Johnson, M.

(2010)

A numerical scheme to calculate temperature and salinity dependent air-water transfer velocities for any gas

in Ocean Science

6.

pp. 913-932

Full Text UEA Repository

(Article)


Bell, T., Johnson, M., Jickells, T., Liss, P.

(2008)

Ammonia/ammonium dissociation coefficient in seawater: A significant numerical correction

in Environmental Chemistry

5.

pp. 183-186

Full Text UEA Repository

(Article)


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Key Research Interests

My main research interests lie in two related areas: the biogeochemical cycling of nitrogen compounds, particularly in aquatic environments; and the physics, chemistry and biology of ocean-atmosphere trace gas exchange. I use direct concentration measurements and incubations / bioassay approaches to quantify nutrient dynamics in the field; and numerical and statistical modelling approaches to constrain estimates of biogeochemical fluxes and to understand observations in the wider context. I am particularly interested in the role of shelf sea nutrient biogeochemistry in the uptake, processing and export of carbon from the atmosphere to the deep ocean and how trace gas emissions and carbon uptake by shelf systems will respond to the nutrient and climate pressures of current and future anthropogenic forcings. 

I am also interested in how online tools and new ways of publishing research can help science to become more efficient and open and less carbon intensive.

Publications: EPrints Digital Repository

Professional Activities

  • Director, Marine Knowledge Enxhange Network, 2014-present
  • Book editor: COST Action 735: Ocean-atmosphere interactions of gases and particles, P.S. Liss and M.T. Johnson Eds, Springer, in press (2014) 2012-2013
  • Edexcel A level chemistry redevelopment working group 2012-2013

Key Responsibilities

  •  Environmental Sciences Research Staff Coordinator