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Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society

COMMUNITY WHITE PAPER10.5270/OceanObs09.cwp.44

Ship-Based Repeat Hydrography: A Strategy for a Sustained Global Program

M. Hood(1), M Fukasawa(2), N. Gruber(3), G. Johnson(4), A. Koertzinger(5), C. Sabine(4), B. Sloyan(6), K. Stansfield(7), T. Tanhua(8)

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Ship-based hydrography is the only method for obtaining high-quality measurements with high spatial and vertical resolution of a suite of physical, chemical, and biological parameters over the full ocean water column, and in areas of the ocean inaccessible to other platforms. Global hydrographic surveys have been carried out approximately every decade since the 1970s through research programs such as GEOSECS (Geochemical Ocean Sections Study), TTO/SAVE Transient Tracers in the Ocean (/South Atlantic Ventilation Experiment), WOCE/JGOFS (World Ocean Circulation Experiment/Joint Global Ocean Flux Study), and CLIVAR (Climate Variability and Predictability). It is time to consider how future surveys can build on these foundations to create a coordinated network of sustained ship-based hydrographic sections that will become an integral component of the ocean observing system. This white paper provides scientific justification and guidelines for the development of a regular and coordinated global survey.

1Intergovernmental Oceanographic Commission of UNESCO (United Nations Educational, Scientific and Cultural Organization), 1 rue Miollis, 75732 Paris Cedex 15, France
2Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa, 237-0061, Japan
3Institute of Biogeochemistry and Pollutant Dynamics, Department of Environmental Sciences, ETH Zürich, CHN, E31.2, Universitätstr. 16, 8092 Zürich, Switzerland
4National Oceanic and Atmospheric Administration Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, Washington, USA
5Leibniz-Institut für Meereswissenschaften, Chemische Ozeanographie, Düsternbrooker Weg 20, 24105 Kiel, Germany
6Commonwealth Scientific and Industrial Research Organisation Marine and Atmospheric Research, GPO Box 1538, Hobart, Tasmania 7001, Australia
7National Oceanography Centre, Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, United Kingdom
8Leibniz-Institut für Meereswissenschaften, Chemische Ozeanographie, Düsternbrooker Weg 20 24105 Kiel, Germany

Correspondence should be addressed to E-mail: maria.hood@ioccp.org

This paper shall be cited as:

Hood, M. & Co-Authors (2010). "Ship-Based Repeat Hydrography: A Strategy for a Sustained Global Program" in Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (Vol. 2), Venice, Italy, 21-25 September 2009, Hall, J., Harrison, D.E. & Stammer, D., Eds., ESA Publication WPP-306, doi:10.5270/OceanObs09.cwp.44

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