1. National Institute of Water and Atmosphere Centre for Chemical and Physical Oceanography, Department of Chemistry; University of Otago; Otago, Dunedin; New Zealand
2. Faculty of Environmental Sciences; Griffith University; Brisbane, Queensland; Australia
3. National Institute of Water and Atmosphere; Greta Point, Wellington; New Zealand
4. National Institute of Water and Atmosphere; Hillcrest, Hamilton; New Zealand
5. Department of Chemistry; University of Otago; Otago, Dunedin; New Zealand