Ocean Science
Ocean Science
OS
Preprints
Preprints
https://doi.org/10.5194/osd-4-245-2007
© Author(s) 2007. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
https://doi.org/10.5194/osd-4-245-2007
© Author(s) 2007. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Preprints
27 Feb 2007
 | 27 Feb 2007
Status: this preprint was under review for the journal OS. A revision for further review has not been submitted.

15N enrichment in the surface Particulate Organic Nitrogen of the north-eastern Arabian Sea from the middle to the waning phase of the winter monsoon: possible causes

S. Kumar and R. Ramesh

Abstract. A temporal increase of ~5‰ in the average nitrogen isotopic composition (δ15NPON) of surface particulate organic nitrogen was observed in the open north-eastern Arabian Sea during January to late February-early March 2003, despite the presence of T. erithraeum (up to ~11%), a diazotroph that fixes atmospheric N2, in the latter period. Hydrographic conditions and residence time of nitrate in the water column suggested that this increase could be a combined effect of denitrification in the subsurface layer and inefficient utilization of nitrate entrained in the water column during January.

How to cite. Kumar, S. and Ramesh, R.: 15N enrichment in the surface Particulate Organic Nitrogen of the north-eastern Arabian Sea from the middle to the waning phase of the winter monsoon: possible causes, Ocean Sci. Discuss., 4, 245–264, https://doi.org/10.5194/osd-4-245-2007, 2007.
Received: 06 Feb 2007 – Discussion started: 27 Feb 2007
S. Kumar and R. Ramesh
 
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
 
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
S. Kumar and R. Ramesh
S. Kumar and R. Ramesh

Viewed

Total article views: 1,545 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
1,003 393 149 1,545 97 96
  • HTML: 1,003
  • PDF: 393
  • XML: 149
  • Total: 1,545
  • BibTeX: 97
  • EndNote: 96
Views and downloads (calculated since 01 Feb 2013)
Cumulative views and downloads (calculated since 01 Feb 2013)

Saved

Latest update: 19 Apr 2024