Global iodide observations, 1967-2018

Data set information

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Data holding centreBritish Oceanographic Data Centre
CountryUnited Kingdom  United Kingdom
Time periodFrom 1st April 1967 to 15th June 2018
Geographical area



Chlorophyll pigment concentrations in water bodies; Concentration of inorganic halogens in water bodies; Phytoplankton taxonomic abundance in water bodies


Discrete water samplers


The Iodide in the Ocean project contains data from a combination of laboratory experiments, field measurements and ocean and atmospheric modelling from three cruises as well as worldwide sea surface measurements from 1967-2018 from published manuscripts, published and unpublished data supplied by the originators themselves or provided by repositories. The project brings together marine and atmospheric scientists to address uncertainties in the marine iodine flux and associated ozone sink. Specifically, it aims to quantify the dominant controls on the sea surface iodide distribution and improve parameterisation of the sea-to-air iodine flux and of ozone deposition. Iodide, iodate and total iodine concentrations were measured on three cruises: BOBBLE, June to July 2016 in the Bay of Bengal, Sagar-Kanya33 in September 2016 in the Arabian Sea and ISOE9 in January to February 2017 in the Indian and Southern Oceans. Samples were taken from Niskin bottles on conductivity-temperature-depth (CTD) profilers. Laboratory experiments consisted of phytoplankton cultures to measure rates of iodate incorporation and iodide production. This project was carried out by Lucy Carpenter (PI), Claire Hughes (Co-PI), Liselotte Tinel, and Helmke Hepach at York University, Mark Evans (Co-PI) at the University of Edinburgh. It was funded by the NERC Discovery Science project Iodide in the ocean: distribution and impact on iodine flux and ozone loss (parent grant reference NE/N009983/1 with child grants NE/N009444/1 and NE/N01054X/1 led by Stephen Ball and David Stevens respectively).

OriginatorsCenter for Marine Environmental Sciences, University of Bremen
GEOMAR Research Centre for Marine Geosciences
Heriot-Watt University Department of Biological Sciences
Heriot-Watt University School of Life Sciences
Lamont-Doherty Earth Observatory, Columbia University
Plymouth Marine Laboratory
The Leibniz Institute of Marine Sciences at the University of Kiel
University of East Anglia, School of Environmental Sciences
University of Galway
University of York, Department of Chemistry

Martin R. Wadley, David P. Stevens, Tim D. Jickells, Claire Hughes, Rosie Chance, Helmke Hepach, Liselotte Tinel, Lucy J. Carpenter (2020) A Global Model for Iodine Speciation in the Upper Ocean, Global Biogeochemical Cycles; Liselotte Tinel, Thomas J. Adams, Lloyd D. J. Hollis, Alice J. M. Bridger, Rosie J. Chance, Martyn W. Ward, Stephen M. Ball, and Lucy J. Carpenter (2020) Influence of the Sea Surface Microlayer on Oceanic Iodine Emissions, Environmental Science & Technology

Data web site
OrganisationBritish Oceanographic Data Centre
ContactPolly Hadžiabdić (Head of the BODC Requests Team)

British Oceanographic Data Centre
Joseph Proudman Building 6 Brownlow Street
L3 5DA
United Kingdom

Telephone+44 (0)782 512 0946
Collating centreBritish Oceanographic Data Centre
Local identifier1048IODIDE1967-2018
Global identifier6902
Last revised2024-07-12