Funded PhD opportunity: Oceanic profiling float technology for carbon cycle

Funded PhD Opportunity: Development of a Micro-Rosette for Total Dissolved Inorganic Carbon Measurements from an ARGO Profiling Float

The ARGO array of profiling floats has already provided orders-of-magnitude improvement in ocean observing relative to ships. This fact has already been realized by physical oceanographers studying the ocean heat budget and large-scale mixing processes and is now gaining momentum in other research communities.

Attempts to add off-the-shelf sensors for the ocean carbon system to profiling floats has thus far been ineffectual because these devices
were not built with the express intention of operating on profilers. Consequently, there is currently no technology available for meaningful observations of the ocean carbon system from the Argo array.

This project is for the development of a micro-rosette which will acquire and store water samples during the profilers’ ascent, and
conduct the analysis at park depth. Unlike pCO2 and pH, dissolved inorganic carbon measurement is well-suited for this type of ex-situ analysis because it is insensitive to temperature and pressure.

This project will result in the first autonomous, Lagrangian vertical profiles of DIC in the upper 2000 m of the ocean, marking a major step in development of a new generation of tools necessary to better understand annual cycles of carbon in addition providing directo observations of ocean acidification over large areas of the ocean.

Candidates should have a degree in physics, engineering, or a closely-related discipline, and a strong motivation for research.

Applications (curriculum vitae, academic degree, references) should be sent by e-mail to Dr. Brian Ward (, National
University of Ireland, Galway, School of Physics, University Road, Galway, Ireland.

This project is funded by Science Foundation Ireland under the US-Ireland Partnership Programme with partners at Scripps Institute of
Oceanography and the University of Ulster. A fixed stipend of 18,000 euro per year is available. Tuition fees will be covered by the
project. It is anticipated that the PhD candiate will commence in September 2010.

Jobs & scholarships, 13 July 2010. Job offer.

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