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Global sea-surface iodide observations, 1967-2018

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Author(s)

  • Alex R. Baker
  • Thomas Bell
  • John Brindle
  • Maria Lucia A.M. Campos
  • Peter Croot
  • Hugh Ducklow
  • He Peng
  • Frances Hopkins
  • Babette Hoogakker
  • Timothy D. Jickells
  • David Loades
  • Dharma Andrea Reyes Macaya
  • Anoop S. Mahajan
  • Gill Malin
  • Daniel Phillips
  • Ieuan Roberts
  • Rajdeep Roy
  • Amit Sarkar
  • Alok Kumar Sinha
  • Xiuxian Song
  • Helge Winkelbauer
  • Kathrin Wuttig
  • Mingxi Yang
  • Zhou Peng

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Publication details

JournalScientific data
DateAccepted/In press - 28 Oct 2019
DatePublished (current) - 26 Nov 2019
Issue number1
Volume6
Number of pages8
Original languageEnglish

Abstract

The marine iodine cycle has significant impacts on air quality and atmospheric chemistry. Specifically, the reaction of iodide with ozone in the top few micrometres of the surface ocean is an important sink for tropospheric ozone (a pollutant gas) and the dominant source of reactive iodine to the atmosphere. Sea surface iodide parameterisations are now being implemented in air quality models, but these are currently a major source of uncertainty. Relatively little observational data is available to estimate the global surface iodide concentrations, and this data has not hitherto been openly available in a collated, digital form. Here we present all available sea surface (<20 m depth) iodide observations. The dataset includes values digitised from published manuscripts, published and unpublished data supplied directly by the originators, and data obtained from repositories. It contains 1342 data points, and spans latitudes from 70°S to 68°N, representing all major basins. The data may be used to model sea surface iodide concentrations or as a reference for future observations.

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© The Author(s) 2019

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