Development and use of an optical pCO2 sensor in marine studies
Partial pressure of CO2 (pCO2) is one of the most important parameters, which are measured in the global ocean in conjunction with ocean acidification studies. It is also a parameter of great interest to aquaculture and fish industries since CO2 in large amounts is highly toxic for animals. The requ...
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ftunivgoeteborg:oai:gupea.ub.gu.se:2077/33847 2023-10-29T02:39:18+01:00 Development and use of an optical pCO2 sensor in marine studies Atamanchuk, Dariia 2013-10-04 application/pdf http://hdl.handle.net/2077/33847 eng eng 1.Performance of a lifetime-based optode for measuring partial pressure of carbon dioxide in natural waters. Atamanchuk D, Tengberg A, Thomas PJ, Hovdenes J, Apostolidis A, Huber C, Hall POJ. Limnol Oceanogr Methods (conditionally accepted for publication) 2.Continuous long-term observations of the carbonate system dynamics in the water column of a temperate fjord. Atamanchuk D, Kononets M, Thomas PJ, Hovdenes J, Tengberg A, Hall POJ. Marine Chemistry (submitted) 3.Field-testing of methods and strategies to detect CO2 leakage from a simulated sub-seabed storage site Atamanchuk D, Tengberg A, Aleynik D, Hall POJ, Stahl H. Manuscript 4.Multivariate evaluation of an optical pCO2 sensor for oceanographic measurements Atamanchuk D, Tengberg A, Thomas PJ, Hovdenes J, Berntsson M, Hall POJ. Manuscript 978-91-628-8778-0 http://hdl.handle.net/2077/33847 pCO2 O2 sensor optode cross-sensitivity carbonate system of seawater biogeochemistry Redfield ratio the Koljo Fjord cabled observatory CCS QICS environmental engineering leakage detection MVDA DoE Text Doctoral thesis Doctor of Philosophy 2013 ftunivgoeteborg 2023-10-04T21:16:23Z Partial pressure of CO2 (pCO2) is one of the most important parameters, which are measured in the global ocean in conjunction with ocean acidification studies. It is also a parameter of great interest to aquaculture and fish industries since CO2 in large amounts is highly toxic for animals. The requirements for pCO2 measuring systems, e.g. long-term stability, accuracy, high sampling frequency, easy maintenance, low-power consumption, are based on the demands from the industry and scientific community, and the current trends according to global sensor development initiatives. A newly developed fluorescence lifetime based optical sensor for measuring pCO2 in water was evaluated and described (Paper 1). The advantages and drawbacks of this new technology in comparison to existing methods were discussed and compared in a number of in situ field deployments (Papers 1-3). A cross-sensitivity of the pCO2 optode to the most commonly co-existing substances in water and seawater was evaluated (Papers 1 and 3). A number of parameters, which influence the response of the pCO2 sensor, were thoroughly investigated in a specially designed experiment and assessed using a multivariate data analysis approach (Paper 1, 4). We have especially focused on describing the influence of salinity change and hydrostatic pressure on the sensor response in separate laboratory tests (Paper 4). A simplified calibration procedure for narrow ranges of pCO2 was proposed and a practically usable mathematical calibration model was elaborated and verified (Paper 4). As a result of sensor development efforts in achieving stability and accuracy of the sensor, pre-conditioning and single-point referencing procedures were proposed (Paper 1). The developed pCO2 sensor was successfully used in a number of biogeochemical studies (Paper 2), for monitoring pCO2 levels in fish tanks (Paper 1) and for detecting CO2 leakages out of a simulated sub-seabed Carbon Capture Storage site (CCS) (Paper 3). Long-term high-temporarily resolved pCO2 data in combination ... Doctoral or Postdoctoral Thesis Ocean acidification University of Gothenburg: GUPEA (Gothenburg University Publications Electronic Archive) |
institution |
Open Polar |
collection |
University of Gothenburg: GUPEA (Gothenburg University Publications Electronic Archive) |
op_collection_id |
ftunivgoeteborg |
language |
English |
topic |
pCO2 O2 sensor optode cross-sensitivity carbonate system of seawater biogeochemistry Redfield ratio the Koljo Fjord cabled observatory CCS QICS environmental engineering leakage detection MVDA DoE |
spellingShingle |
pCO2 O2 sensor optode cross-sensitivity carbonate system of seawater biogeochemistry Redfield ratio the Koljo Fjord cabled observatory CCS QICS environmental engineering leakage detection MVDA DoE Atamanchuk, Dariia Development and use of an optical pCO2 sensor in marine studies |
topic_facet |
pCO2 O2 sensor optode cross-sensitivity carbonate system of seawater biogeochemistry Redfield ratio the Koljo Fjord cabled observatory CCS QICS environmental engineering leakage detection MVDA DoE |
description |
Partial pressure of CO2 (pCO2) is one of the most important parameters, which are measured in the global ocean in conjunction with ocean acidification studies. It is also a parameter of great interest to aquaculture and fish industries since CO2 in large amounts is highly toxic for animals. The requirements for pCO2 measuring systems, e.g. long-term stability, accuracy, high sampling frequency, easy maintenance, low-power consumption, are based on the demands from the industry and scientific community, and the current trends according to global sensor development initiatives. A newly developed fluorescence lifetime based optical sensor for measuring pCO2 in water was evaluated and described (Paper 1). The advantages and drawbacks of this new technology in comparison to existing methods were discussed and compared in a number of in situ field deployments (Papers 1-3). A cross-sensitivity of the pCO2 optode to the most commonly co-existing substances in water and seawater was evaluated (Papers 1 and 3). A number of parameters, which influence the response of the pCO2 sensor, were thoroughly investigated in a specially designed experiment and assessed using a multivariate data analysis approach (Paper 1, 4). We have especially focused on describing the influence of salinity change and hydrostatic pressure on the sensor response in separate laboratory tests (Paper 4). A simplified calibration procedure for narrow ranges of pCO2 was proposed and a practically usable mathematical calibration model was elaborated and verified (Paper 4). As a result of sensor development efforts in achieving stability and accuracy of the sensor, pre-conditioning and single-point referencing procedures were proposed (Paper 1). The developed pCO2 sensor was successfully used in a number of biogeochemical studies (Paper 2), for monitoring pCO2 levels in fish tanks (Paper 1) and for detecting CO2 leakages out of a simulated sub-seabed Carbon Capture Storage site (CCS) (Paper 3). Long-term high-temporarily resolved pCO2 data in combination ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Atamanchuk, Dariia |
author_facet |
Atamanchuk, Dariia |
author_sort |
Atamanchuk, Dariia |
title |
Development and use of an optical pCO2 sensor in marine studies |
title_short |
Development and use of an optical pCO2 sensor in marine studies |
title_full |
Development and use of an optical pCO2 sensor in marine studies |
title_fullStr |
Development and use of an optical pCO2 sensor in marine studies |
title_full_unstemmed |
Development and use of an optical pCO2 sensor in marine studies |
title_sort |
development and use of an optical pco2 sensor in marine studies |
publishDate |
2013 |
url |
http://hdl.handle.net/2077/33847 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
1.Performance of a lifetime-based optode for measuring partial pressure of carbon dioxide in natural waters. Atamanchuk D, Tengberg A, Thomas PJ, Hovdenes J, Apostolidis A, Huber C, Hall POJ. Limnol Oceanogr Methods (conditionally accepted for publication) 2.Continuous long-term observations of the carbonate system dynamics in the water column of a temperate fjord. Atamanchuk D, Kononets M, Thomas PJ, Hovdenes J, Tengberg A, Hall POJ. Marine Chemistry (submitted) 3.Field-testing of methods and strategies to detect CO2 leakage from a simulated sub-seabed storage site Atamanchuk D, Tengberg A, Aleynik D, Hall POJ, Stahl H. Manuscript 4.Multivariate evaluation of an optical pCO2 sensor for oceanographic measurements Atamanchuk D, Tengberg A, Thomas PJ, Hovdenes J, Berntsson M, Hall POJ. Manuscript 978-91-628-8778-0 http://hdl.handle.net/2077/33847 |
_version_ |
1781066082399813632 |