OceanoScientific Expeditions (OSE) 2020 | POGO

OceanoScientific Expeditions (OSE) 2020


Observing the ocean from sailing vessels of opportunity is a promising way to enhance the ocean sampling especially at high latitudes, where the anthropogenic environmental footprint is smaller, as little carbon dioxide (CO2) is produced and there is less oceanic plastic debris. Mid-latitude and tropical areas are often well sampled using merchant ships, autonomous instruments and moorings. However, because there are few commercial shipping routes there is a critical under-sampling of the southern hemisphere, and in particular in the Antarctic Circumpolar Current (ACC). We believe that sailing ships could play an important role in complementing this sampling. Here the focus is on surface properties, primarily temperature, salinity, partial pressure of CO2 (pCO2), fluorescence and bio-optical measurements, isotopic composition of water, as well as on meteorological measurements, that will be jointly measured continuously or with high sampling rate to resolve meso-scale structures.

The OceanoScientific Expeditions (OSE) scheduled in the Atlantic Ocean and around Antarctica during the austral summer 2019-2020 and during the austral winter 2020 will play an important role in demonstrating the capacity of using sailing ships as ocean observers. Having two expeditions will enable sampling of two contrasting seasons and permit some validation of the seasonal cycle that is poorly known in the eddying regions of the ACC, that are sites of strong air-sea interaction, water mass formation and highly spatially and temporally variable primary production.

We will provide and distribute real time data, validate the data through various approaches, and provide highly accurate delayed mode data. In addition, OceanoScientific Expeditions is a way to reach the general public through active outreach (media and TV exposure) and forge connections and involvement of schools. This would thus bring the explorative spirit of ocean research to the general public, enthuse younger scientists and possible sponsors, and involve society in public research.


How OceanoScientific Expeditions (OSE) 2020 contributes to POGO priority areas

POGO has noted the enormous disparity between the number observations collected in the data-poor southern hemisphere compared to the well-sampled northern hemisphere. This project will contribute relevant environmental climate variables (ECVs) in less sampled regions of the Southern Hemisphere, and in particular in the highly variable environment of the Antarctic Circumpolar Current. Underway sampling in the tropical and south Atlantic Ocean will be interesting, first to test the instrumentation and establish the potential accuracy of its data, and will also contribute data to our Brazilian partners.


The project will bring together experts from key institutions in Europe, the United States, Australia and Brazil, that together will enable better evaluation of the potential of sailing vessels to contribute to the observing systems in the Southern Hemisphere.


The OSE2020 project will establish closer links between different institutes in the northern and southern hemispheres, including POGO partners, but also further help develop closer links with the civil society in data collection and outreach to the public.

Project Participants

Working Group leader:


Gilles Reverdin, CNRS (LOCEAN), France




Nicolas Metzl, CNRS (LOCEAN), France


Catherine Goyet, Univ. Perpignan, France


Loïc Petit de la Villéon, IFREMER, France


Thierry Reynaud, IFREMER (LOPS), France


Anouck Ody, OSE, France


Yvan Griboval, OSE, France


Janet Sprintall, Scripps Institution of Oceanography, U.C. San Diego, USA


Adrienne Sutton, NOAA Pacific Marine Environmental Laboratory, USA


Bronte Tilbrook, CSIRO (Hobart, Tasmania), Australia


Rodrigo Kerr, Instituto de Oceanografia, Universidade Federal do Rio Grande-FURG, Brazil


Moacyr Araujo, Departamento de Oceanografia, UFPE, Recife-PE, Brazil


Bjoern Fiedler, GEOMAR (Kiel), Germany



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