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Sun, Cui-Ci; Sperling, Martin; Engel, Anja (2018): Effect of wind speed on the size distribution of gel particles in the sea surface microlayer: Insights from a wind wave channel experiment [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.891025, Supplement to: Sun, C-C et al. (2018): Effect of wind speed on the size distribution of gel particles in the sea surface microlayer: insights from a wind–wave channel experiment. Biogeosciences, 15(11), 3577-3589, https://doi.org/10.5194/bg-15-3577-2018

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Abstract:
Gel particles, such as transparent exopolymer particles (TEP) and Coomassie stainable particles (CSP), are important organic components in the sea surface microlayer (SML). Here, we present results on the effect of different wind speeds on the accumulation and size distribution of TEP and CSP during a wind wave channel experiment in the Aeolotron. Total areas of TEP (TEPSML) and CSP (CSPSML) in the surface microlayer were exponentially related to wind speed. At wind speeds < 6 m s−1, accumulation of TEPSML and CSPSML occurred, decreasing at wind speeds of > 8 m s−1. Wind speeds > 8 m s−1 also significantly altered the size distribution of TEPSML in the 2–16 µm size range towards smaller sizes. The response of the CSPSML size distribution to wind speed varied through time depending on the biogenic source of gels. Wind speeds > 8 m s−1 decreased the slope of CSPSML size distribution significantly in the absence of autotrophic growth. For the slopes of TEP and CSP size distribution in the bulk water, no significant difference was observed between high and low wind speeds. Changes in spectral slopes between high and low wind speed were higher for TEPSML than for CSPSML, indicating that the impact of wind speed on size distribution of gel particles in the SML may be more pronounced for TEP than for CSP, and that CSPSML are less prone to aggregation during the low wind speeds. Addition of an E. huxleyi culture resulted in a higher contribution of submicron gels (0.4–1 µm) in the SML at higher wind speed (> 6 m s−1), indicating that phytoplankton growth may potentially support the emission of submicron gels with sea spray aerosol.
Project(s):
Surface Ocean Processes in the Anthropocene (SOPRAN)
Coverage:
Latitude: 64.081660 * Longitude: 8.033830
Date/Time Start: 2014-11-03T00:00:00 * Date/Time End: 2014-11-27T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
8 datasets

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Datasets listed in this publication series

  1. Engel, A (2018): Response of CSP abundance and total area to increasing wind speeds in Aelotron experiment 2014. https://doi.org/10.1594/PANGAEA.891159
  2. Engel, A (2018): Enrichment factors (EF) of TEP and CSP in the SML with and without bubbling of the water column in Aelotron experiment 2014. https://doi.org/10.1594/PANGAEA.891168
  3. Engel, A (2018): The size-frequency distribution of TEP(2-16µm) in Aelotron experiment 2014. https://doi.org/10.1594/PANGAEA.891162
  4. Engel, A (2018): The size-frequency distribution of CSP(2-16µm) in Aelotron experiment 2014. https://doi.org/10.1594/PANGAEA.891163
  5. Engel, A (2018): Maximum size (ESD) of gel particles in the SML in Aelotron experiment 2014. https://doi.org/10.1594/PANGAEA.891164
  6. Engel, A (2018): Response of TEP abundance and total area to increasing wind speeds in Aelotron experiment 2014. https://doi.org/10.1594/PANGAEA.891158
  7. Engel, A (2018): Developments of TEP and CSP in the SML and the bulk water in Aelotron experiment 2014. https://doi.org/10.1594/PANGAEA.891126
  8. Engel, A (2018): Wind speed settings during the experimental days in Aelotron experiment 2014. https://doi.org/10.1594/PANGAEA.891169