"Muu" projekt MLOKT11174
MLOKT11174 "Ookeanide soolsuse ja happelisuse mõõtmise metroloogilise toe loomine (1.09.2011−31.08.2014)", Ivo Leito, Tartu Ülikool.
MLOKT11174
Ookeanide soolsuse ja happelisuse mõõtmise metroloogilise toe loomine
Metrology for ocean salinity and acidity
1.09.2011
31.08.2014
Teadus- ja arendusprojekt
Muu
ValdkondAlamvaldkondCERCS erialaFrascati Manual’i erialaProtsent
4. Loodusteadused ja tehnika4.11. Keemia ja keemiatehnikaP300 Analüütiline keemia 1.3. Keemiateadused (keemia ja muud seotud teadused)100,0
AsutusRollPeriood
Tartu Ülikoolpartner01.09.2011−31.08.2014
AsutusRiikTüüp
EURAMET e.V
PerioodSumma
01.09.2011−31.08.201430 059,52 EUR
30 059,52 EUR

This project will improve the metrological infrastructure required for reliable monitoring and modelling of ocean processes. It will cover thermodynamic quantities such as salinity, conductivity, density, speed of sound, and temperature, as well as chemical quantities such as pH, oxygen content and composition. Seawater data, for thermodynamic quantities, will be measured over a wide range of temperature and pressure (0 °C < t < 40 °C, 0 < p < 70 MPa) with low uncertainty [target values: density (relative 1 * 10-5), salinity (relative 1 * 10-4), speed of sound (relative 1 * 10-3), temperature (5 mK)] and traceable to the Sl. This will form the basis for future improvements of the Equation of State of seawater. Special attention will be given on establishing a traceability chain for Practical Salinity to density. Measurement procedures of dissolved oxygen concentration with low uncertainties (preliminary studies indicate that uncertainties smaller than 0.06 mg/l (k = 2) can be achieved) will be developed of seawater.The possible influence of the high salt content of seawater on the measurements and on the uncertainty of the results will also be investigated.
This project will improve the metrological infrastructure required for reliable monitoring and modelling of ocean processes. It will cover thermodynamic quantities such as salinity, conductivity, density, speed of sound, and temperature, as well as chemical quantities such as pH, oxygen content and composition. Seawater data, for thermodynamic quantities, will be measured over a wide range of temperature and pressure (0 °C < t < 40 °C, 0 < p < 70 MPa) with low uncertainty [target values: density (relative 1 * 10-5), salinity (relative 1 * 10-4), speed of sound (relative 1 * 10-3), temperature (5 mK)] and traceable to the Sl. This will form the basis for future improvements of the Equation of State of seawater. Special attention will be given on establishing a traceability chain for Practical Salinity to density. Measurement procedures of dissolved oxygen concentration with low uncertainties (preliminary studies indicate that uncertainties smaller than 0.06 mg/l (k = 2) can be achieved) will be developed of seawater.The possible influence of the high salt content of seawater on the measurements and on the uncertainty of the results will also be investigated.
TegevusProtsent
Alusuuring50,0
Rakendusuuring50,0