Preprints
https://doi.org/10.5194/bg-2017-73
https://doi.org/10.5194/bg-2017-73
13 Mar 2017
 | 13 Mar 2017
Status: this preprint was under review for the journal BG but the revision was not accepted.

Nitrous oxide variability at sub-kilometre resolution in the Atlantic sector of the Southern Ocean

Imke Grefe, Sophie Fielding, Karen J. Heywood, and Jan Kaiser

Abstract. The Southern Ocean is an important region for global nitrous oxide (N2O) cycling. The contribution of different source and sink mechanisms is, however, not very well constrained due to a scarcity of seawater data from the area. Here we present high-resolution surface N2O measurements from the Atlantic sector of the Southern Ocean, taking advantage of a relatively new underway setup allowing for collection of data during transit across mesoscale features such as frontal systems and eddies. Covering a range of different environments and biogeochemical settings, N2O saturations and sea-to-air flux were highly variable: Saturations ranged from 96.5 % at the sea ice edge in the Weddell Sea to 126.1 % across the Polar Frontal Zone during transit to South Georgia. Negative sea-to-air fluxes of up to −1.3 µmol m−2 d−1 were observed in the Subantarctic Zone and highest positive fluxes of 14.5 µmol m−2 d−1 in Stromness Bay, coastal South Georgia.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Imke Grefe, Sophie Fielding, Karen J. Heywood, and Jan Kaiser
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Imke Grefe, Sophie Fielding, Karen J. Heywood, and Jan Kaiser
Imke Grefe, Sophie Fielding, Karen J. Heywood, and Jan Kaiser

Viewed

Total article views: 1,471 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
1,030 355 86 1,471 64 85
  • HTML: 1,030
  • PDF: 355
  • XML: 86
  • Total: 1,471
  • BibTeX: 64
  • EndNote: 85
Views and downloads (calculated since 13 Mar 2017)
Cumulative views and downloads (calculated since 13 Mar 2017)

Viewed (geographical distribution)

Total article views: 1,408 (including HTML, PDF, and XML) Thereof 1,405 with geography defined and 3 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 19 May 2024
Download
Altmetrics