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| Titel |
Sensors and instruments for oceanic dissolved carbon measurements |
| VerfasserIn |
U. Schuster, A. Hannides, L. Mintrop  , A. Körtzinger |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1812-0784
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| Digitales Dokument |
URL |
| Erschienen |
In: Ocean Science ; 5, no. 4 ; Nr. 5, no. 4 (2009-11-10), S.547-558 |
| Datensatznummer |
250002731
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| Publikation (Nr.) |
 copernicus.org/os-5-547-2009.pdf |
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| Zusammenfassung |
Highly accurate and precise measurements of marine carbon components are
required in the study of the marine carbon cycle, particularly when
investigating the causes for its variability from seasonal to interannual
timescales. This is especially true in the investigation of the consequences
of anthropogenic influences.
The analysis of any marine carbon component requires elaborate
instrumentation, most of which is currently used onboard ships, either in
manual or automated mode. Technological developments result in more and more
instruments that have sufficient long-term reliability so that they can be
deployed on commercial ships, surface moorings, and buoys, whilst the great
technological and operational challenges mean that only few sensors have
been developed that can be used for sub-surface in situ measurements on
floats, robots, or gliders. There is a special need for autonomous
instruments and sensors that are able to measure a combination of different
components, in order to increase the spatial and temporal coverage of marine
carbon data.
This paper describes analytical techniques used for the measurement of the
marine dissolved carbon components, both inorganic and organic: the fugacity
of CO2, total dissolved inorganic carbon, pH, alkalinity, and dissolved
organic carbon. By pointing out advantages, disadvantages, and/or challenges
of the techniques employed in the analysis of each component, we aim to aid
non-carbon marine scientists, sensor developers and technologists, in the
decision of which challenges to address in further development. |
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