The effect of iron on carbon dioxide in the oceans

Frank J Millero

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)

Abstract

Approximately 40% of the CO2 added to the atmosphere is thought to be taken up by the oceans. This uptake of CO2 can be due to the solubility of the gas in cold sinking waters (the solubility pump) or the biological conversion to organic carbon that sinks to deep waters and is converted back to CO2 (the biological pump). For the biological pump to work the phytoplankton growing in the surface waters need nutrients. In some parts of the ocean, however, the surface waters have high concentrations of nutrients and low concentrations of chlorophyll or phytoplankton. It has been postulated that plants do not grow in these waters due to a lack of iron (the Iron Hypothesis). Recently there have been two open ocean experiments (Ironex I and II) that have been made to test this hypothesis. This was done by adding large amounts of iron-enriched seawater to surface waters. The waters were then sampled for a number of days to examine the changes in the biological and chemical properties of the iron-enriched patch. The results of these experiments are reviewed in this paper.

Original languageEnglish (US)
Title of host publicationScience Progress
Pages147-168
Number of pages22
Volume80
Edition2
StatePublished - 1997
Externally publishedYes

Fingerprint

carbon dioxide
biological pump
iron
ocean
surface water
solubility
phytoplankton
nutrient
carbon sink
open ocean
water
chemical property
pump
chlorophyll
deep water
experiment
organic carbon
seawater
effect
atmosphere

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Millero, F. J. (1997). The effect of iron on carbon dioxide in the oceans. In Science Progress (2 ed., Vol. 80, pp. 147-168)

The effect of iron on carbon dioxide in the oceans. / Millero, Frank J.

Science Progress. Vol. 80 2. ed. 1997. p. 147-168.

Research output: Chapter in Book/Report/Conference proceedingChapter

Millero, FJ 1997, The effect of iron on carbon dioxide in the oceans. in Science Progress. 2 edn, vol. 80, pp. 147-168.
Millero FJ. The effect of iron on carbon dioxide in the oceans. In Science Progress. 2 ed. Vol. 80. 1997. p. 147-168
Millero, Frank J. / The effect of iron on carbon dioxide in the oceans. Science Progress. Vol. 80 2. ed. 1997. pp. 147-168
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