FerryBox Data in the North Sea from 2002 to 2005

Petersen, Wilhelm; Reinke, Susanne; Breitbach, Gisbert; Petschatnikov, Michail; Wehde, Henning; Thomas, Henrike

doi:10.5194/essd-2018-12

2018

DOI: 10.5194/essd-2018-12

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FerryBox Data in the North Sea from 2002 to 2005

Wilhelm Petersen¹,

Susanne Reinke²,

Gisbert Breitbach³

et al.

Abstract: 15

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2020

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“…The compact nature and modular functioning of the autonomous carbon sensors allows simple integration with existing FerryBox systems. The basic FerryBoxes have been measuring since the start of the century (Petersen et al 2018) and more recently, membrane‐based p CO 2 and alkalinity sensors have been integrated on some of the routes (Voynova et al 2019).…”

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confidence: 99%

Long‐term intercomparison of two pCO₂ instruments based on ship‐of‐opportunity measurements in a dynamic shelf sea environment

Macovei

Voynova

Becker

et al. 2020

Limnology & Ocean Methods

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The partial pressure of carbon dioxide (pCO 2 ) in surface seawater is an important biogeochemical variable because, together with the pCO 2 in the atmosphere, it determines the direction of air-sea carbon dioxide exchange. Large-scale observations of pCO 2 are facilitated by Ships-of-Opportunity (SOOP-CO 2 ) equipped with underway measuring instruments. The need for expanding the observation capacity and the challenges involving the sustainability and maintenance of traditional equilibrator systems led the community toward developing simpler and more autonomous systems. Here we performed a comparison between a membrane-based sensor and a showerhead equilibration sensor installed on two SOOP-CO 2 between 2013 and 2018. We identified time-and space-adequate crossovers in the Skagerrak Strait, where the two ship routes often crossed. We found a mean total difference of 1.5 ± 10.6 μatm and a root mean square error of 11 μatm. The pCO 2 values recorded by the two instruments showed a strong linear correlation with a coefficient of 0.91 and a slope of 1.07 (± 0.14), despite the dynamic nature of the environment and the difficulty of comparing measurements from two different vessels. The membrane-based sensor was integrated with a FerryBox system on a ship with a high sampling frequency in the study area. We showed the strength of having a sensor-based network with a high spatial coverage that can be validated against conventional SOOP-CO 2 methods. Proving the validity of membrane-based sensors in coastal and continental shelf seas and using the higher frequency measurements they provide can enable a thorough characterization of pCO 2 variability in these dynamic environments.

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mentioning

confidence: 99%

Long‐term intercomparison of two pCO₂ instruments based on ship‐of‐opportunity measurements in a dynamic shelf sea environment

Macovei

Voynova

Becker

et al. 2020

Limnology & Ocean Methods

Self Cite

View full text Add to dashboard Cite

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FerryBox Data in the North Sea from 2002 to 2005

Abstract: 15

Cited by 1 publication

References 3 publications

Long‐term intercomparison of two pCO₂ instruments based on ship‐of‐opportunity measurements in a dynamic shelf sea environment

Long‐term intercomparison of two pCO₂ instruments based on ship‐of‐opportunity measurements in a dynamic shelf sea environment

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FerryBox Data in the North Sea from 2002 to 2005

Abstract: 15

Cited by 1 publication

References 3 publications

Long‐term intercomparison of two pCO2 instruments based on ship‐of‐opportunity measurements in a dynamic shelf sea environment

Long‐term intercomparison of two pCO2 instruments based on ship‐of‐opportunity measurements in a dynamic shelf sea environment

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Long‐term intercomparison of two pCO₂ instruments based on ship‐of‐opportunity measurements in a dynamic shelf sea environment

Long‐term intercomparison of two pCO₂ instruments based on ship‐of‐opportunity measurements in a dynamic shelf sea environment