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  • 1
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    Eddy covariance data for CO2 and sensible and latent heat flux during SONNE cruises SO234/2 and SO235 (OASIS) (2023)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: Direct CO2/DMS flux measurements were done aboard the RV Sonne sailing from Durban, SA to Port Louis, MU (SO 234-2, 8–20 July 2014) and from Port Louis, MU to Malé, MV (SO 235, 23 July to 8 August 2014). Additionally, bulk air and seawater concentrations of CO2 and DMS were recorded. Basic meteorological observations were done by the ship's automated weather station. The wind speed is measured by the ship's meteorological station and then recalculated by stability parameters of COARE to u10n.
    Keywords: CT; Description; GEOMAR; Helmholtz Centre for Ocean Research Kiel; MATLAB file; MATLAB file (File Size); OASIS; SO234/2; SO234/2-track; SO235; SO235-track; Sonne; SPACES II; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 8 data points
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    DATA PANGAEA
  • 2
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    Interpolated Global surface ocean carbon dioxide partial pressure and ocean-atmosphere fluxes 1992-2018, corrected for surface temperature deviations (2020)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The data set consists of interpolated fields of global surface ocean partial pressure of carbon dioxide (pCO2sw) and the flux of CO2 between ocean and atmosphere, on monthly time and 1-degree latitude and longitude, between January 1992 and December 2018. The pCO2sw is interpolated to this grid from the data set of Holding et al: https://doi.org/10.1594/PANGAEA.905316, which is in turn derived from the the SOCATv2019 observational data (https://www.socat.info/) where the observations have been corrected to the surface subskin temperature using satellite-derived surface temperature products. The interpolation uses the neural net technique of Landschützer et al. ( Biogeosciences 10, 7793-7815, doi:10.5194/bg-10-7793-2013 2013). The ocean-atmosphere flux is then calculated, using the gas transfer equation with the gas transfer velocity parameterized as a function of wind speed and atmospheric mixing ratio of CO2, with a further correction for the cool (and salty) surface ocean skin. These corrections for near-surface temperature deviations increase the net negative (e.g. into the ocean) flux. Full details are given in the corresponding article in Nature Communications (doi:10.1038/s41467-020-18203-3) and its accompanying extended data.
    Keywords: Binary Object; Binary Object (File Size); Binary Object (Media Type); ocean-atmosphere CO2 flux; Ocean sink
    Type: Dataset
    Format: text/tab-separated-values, 2 data points
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    DATA PANGAEA
  • 3
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    The links between marine plastic litter and the air-sea flux of greenhouse gases (2023)
    Frontiers
    Details
    Publication Date: 2024-02-07
    Description: Climate change and plastic pollution are two of the most pressing environmental challenges caused by human activity, and they are directly and indirectly linked. We focus on the relationship between marine plastic litter and the air-sea flux of greenhouse gases (GHGs). Marine plastic litter has the potential to both enhance and reduce oceanic GHG fluxes, but this depends on many factors that are not well understood. Different kinds of plastic behave quite differently in the sea, affecting air-sea gas exchange in different, largely unknown, ways. The mechanisms of air-sea exchange of GHGs have been extensively studied and if air-sea gas transfer coefficients and concentrations of the gas in water and air are known, calculating the resulting GHG fluxes is reasonably straightforward. However, relatively little is known about the consequences of marine plastic litter for gas transfer coefficients, concentrations, and fluxes. Here we evaluate the most important aspects controlling the exchange of GHGs between the sea and the atmosphere and how marine plastic litter could change these. The aim is to move towards improving air-sea GHG flux calculations in the presence of plastic litter and we have largely limited ourselves to identifying processes, rather than estimating relative importance.
    Type: Article , PeerReviewed
    Format: text
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    PAPER (OCEANREP)
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