The SOLAS air-sea gas exchange experiment (SAGE) 2004

Document Type


Publication details

Harvey, MJ, Law, CS, Smith, MJ, Hall, JA, Abraham, ER, Stevens, CL, Hadfield, MG, Ho, DT, Ward, B, Archer, SD, Cainey, JM, Currie, KI, Devries, D, Ellwood, MJ, Hill, P, Jones, GB, Katzj, D, Kuparinen, J, Macaskill, B, Main, W, Marriner, A, McGregor, J, McNeil, C, Minnett, PJ, Nodder, SD, Peloquin, J, Pickmere, S, Pinkerton, MH, Safi, KA, Thompson, R, Walkington, M, Wright, SW & Ziolkowski, LA 2011, 'The SOLAS air-sea gas exchange experiment (SAGE) 2004', Deep-Sea Research. Part II: Topical Studies in Oceanography, vol. 58, no. 6, pp. 753-763.

The publisher's version is available at


Peer Reviewed



The SOLAS air–sea gas exchange experiment (SAGE) was a multiple-objective study investigating gas-transfer processes and the influence of iron fertilisation on biologically driven gas exchange in high-nitrate low-silicic acid low-chlorophyll (HNLSiLC) Sub-Antarctic waters characteristic of the expansive subpolar zone of the southern oceans. This paper provides a general introduction and summary of the main experimental findings. The release site was selected from a pre-voyage desktop study of environmental parameters to be in the south-west Bounty Trough (46.5�S 172.5�E) to the south-east of New Zealand and the experiment was conducted between mid-March and mid-April 2004. In common with other mesoscale iron addition experiments (FeAX’s), SAGE was designed as a Lagrangian study, quantifying key biological and physical drivers influencing the air–sea gas exchange processes of CO