Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 5.509 IF 5.509
  • IF 5-year value: 5.689 IF 5-year 5.689
  • CiteScore value: 5.44 CiteScore 5.44
  • SNIP value: 1.519 SNIP 1.519
  • SJR value: 3.032 SJR 3.032
  • IPP value: 5.37 IPP 5.37
  • h5-index value: 86 h5-index 86
  • Scimago H index value: 161 Scimago H index 161
Discussion papers
https://doi.org/10.5194/acp-2018-641
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2018-641
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 05 Sep 2018

Research article | 05 Sep 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Chemistry and Physics (ACP).

Revisiting properties and concentrations of ice nucleating particles in the sea surface microlayer and bulk seawater in the Canadian Arctic during summer

Victoria E. Irish1, Sarah Hanna1, Yu Xi1, Matthew Boyer2, Elena Polishchuk1, Jessie Chen1, Jonathan P. D. Abbatt3, Michel Gosselin4, Rachel Chang2, Lisa Miller5, and Allan K. Bertram1 Victoria E. Irish et al.
  • 1Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
  • 2Department of Physics and Atmospheric Science, Dalhousie University, Sir James Dunn Building, 6310 Coburg Road, Halifax, Nova Scotia, B3H 4R2, Canada
  • 3Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario, ON M5S 3H6, Canada
  • 4Institut des sciences de la mer de Rimouski, Université du Québec à Rimouski, 310 Allée des Ursulines, Rimouski, Québec, QC G5L 3A1, Canada
  • 5Institute of Ocean Sciences, Fisheries and Oceans Canada, Sidney, BC V8L 4B2, Canada

Abstract. Despite growing evidence that the ocean is an important source of ice nucleating particles (INPs) in the atmosphere, our understanding of the properties and concentrations of INPs in ocean surface waters remain limited. We have investigated the properties and concentrations of INPs in sea surface microlayer and bulk seawater samples collected in the Canadian Arctic during the summer of 2016. We observed that 1) INPs were ubiquitous in the microlayer and bulk waters; 2) heat and filtration treatments reduced INP activity, indicating that the INPs were likely heat-labile biological materials between 0.2 and 0.02μm in diameter; 3) there was a strong negative correlation between salinity and freezing temperatures, possibly due to INPs associated with melting sea ice; and 4) concentrations of INPs could not be explained by satellite-derived chlorophyll a concentrations. Although the spatial patterns of INPs and salinities were similar in 2014 and 2016, we did observe some differences between the years, notably: 1) the concentrations of INPs were higher on average in 2016 compared to 2014; and 2) INP concentrations were enhanced in the microlayer compared to bulk seawater in several samples collected in 2016, which was not the case in 2014.

Victoria E. Irish et al.
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Co-Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Victoria E. Irish et al.
Victoria E. Irish et al.
Viewed  
Total article views: 372 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
291 76 5 372 19 2 3
  • HTML: 291
  • PDF: 76
  • XML: 5
  • Total: 372
  • Supplement: 19
  • BibTeX: 2
  • EndNote: 3
Views and downloads (calculated since 05 Sep 2018)
Cumulative views and downloads (calculated since 05 Sep 2018)
Viewed (geographical distribution)  
Total article views: 372 (including HTML, PDF, and XML) Thereof 371 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 20 Nov 2018
Publications Copernicus
Special issue
Download
Short summary
The ocean is a source of atmospheric ice nucleating particles (INPs). In this study we compared INPs measured in microlayer and bulk seawater in the Canadian Arctic in 2016 to those measured in 2014. A strong negative correlation between salinity and freezing temperatures was observed, possibly due to INPs associated with melting sea-ice. In addition, although spatial patterns of INPs and salinities were similar in 2014 and 2016, the concentrations of INPs were on average higher in 2016.
The ocean is a source of atmospheric ice nucleating particles (INPs). In this study we compared...
Citation
Share