Project: Metrology for ocean salinity and acidity

Higher levels of carbon dioxide (CO2) in the atmosphere lead to increased levels of CO2 dissolved in oceans, and an associated increase in acidity and salinity (the amount of salt in water). Scientists need to understand water properties such as salinity because they influence ocean circulation patterns, which affect the Earth’s climate. Salinity measurements, inferred from the conductivity of water, currently use a traditional scale not related to SI units that cannot guarantee long-term measurement traceability and stability. This research will link measurements of salinity to measurements of density, which can be traced back to SI units, thereby improving confidence in salinity measurements.

Acronym ENV05 Ocean (Reference Number: ENV05)
Duration 01/09/2011 - 31/08/2014
Project Topic Metrology
Project Results
(after finalisation)
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Website visit project website
Network EMRP
Call EMRP Call 2010 - Industry and Environment

Project partner

Number Name Role Country
1 Physikalisch-Technische Bundesanstalt Coordinator Germany
2 Istituto Nazionale di Ricerca Metrologica Partner Italy
3 Instituto Português da Qualidade, I.P. Partner Portugal
4 JRC - Joint Research Centre - European Commission Partner European Union
5 Laboratoire national de métrologie et d'essais Partner France
6 Magyar Kereskedelmi Engedelyezesi Hivatal Partner Hungary
7 NPL Management Limited Partner United Kingdom
8 Slovenský Metrologický Ústav Partner Slovakia
9 Suomen ymparistokeskus Partner Finland
10 Tartu Ulikool Partner Estonia
11 University of Plymouth United Kingdom