Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Return to search results

Tara Oceans Expedition

Published by NASA/GSFC/SED/ESD/GCDC/OB.DAAC;NASA/GSFC/SED/ESD/GCDC/SeaBASS | National Aeronautics and Space Administration | Metadata Last Checked: February 21, 2026 | Last Modified: 2026-02-17
The Tara Oceans expedition, a 2.5-year long and 57,000 mile long trajectory, was conceived to provide a snapshot of the distribution of planktonic organisms in the world ocean, providing 'A global-scale study of morphological, genetic, and functional biodiversity of plankton organisms in relation to the changing physico-chemical parameters of the oceans' (Karsenti et al., 2011). The expedition took place from September 2009 to March 2012, spanned the majority of the world's oceans, and included, besides a large array of biological sampling, hydrographic measurements, optical measurements of surface hyper-spectral particulate absorption and attenuation, hyper-spectral reflectance and HPLC pigments.E. Karsenti, S.G. Acinas, P. Bork, C. Bowler, C. De Vargas, J. Raes, and 22 co-authors, A holistic approach to marine eco-systems biology, PLoS Biol. 9, e1001177, (2011), doi:10.1371/journal.pbio.1001177.

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov