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| Titel |
Simultaneous and continuous measurements of dissolved CO2, CH4, N2O and CO in rivers using Fourier-Transform-InfraRed (FTIR) spectrometry |
| VerfasserIn |
Thorsten Warneke, Denise Müller, Christopher Caldow, Tim Rixen, Justus Notholt |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250111749
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| Publikation (Nr.) |
 EGU/EGU2015-11889.pdf |
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| Zusammenfassung |
| We have coupled a Fourier-Transform InfraRed (FTIR) trace gas analyser to an equilibrator,
which allows the simultaneous and continuous measurement of dissolved CO2, CH4, N2O
and CO in water. The FTIR-technique has a high precision over a wide range of
concentrations, making it very suitable for the measurement of these gases in freshwater
systems. We have employed this measurement system on a commercial river barge
on the Elbe river (Czech Republic, Germany) and on a fisher boat in the coastal
area of Sarawak (Malaysia). In addition we have performed stationary continuous
measurements at a small river in Northern Germany over the duration of 3 months. The
presentation will outline the advantages and disadvantages of the FTIR-technique for
freshwater measurements and will present results from the measurement campaigns. |
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