The University of Southampton
University of Southampton Institutional Repository

Tracer?derived freshwater composition of the Siberian continental shelf and slope following the extreme Arctic summer of 2007

Tracer?derived freshwater composition of the Siberian continental shelf and slope following the extreme Arctic summer of 2007
Tracer?derived freshwater composition of the Siberian continental shelf and slope following the extreme Arctic summer of 2007
We investigate the freshwater composition of the shelf and slope of the Arctic Ocean north of the New Siberian Islands using geochemical tracer data (? 18O, Ba, and PO*4) collected following the extreme summer of 2007. We find that the anomalous wind patterns that partly explained the sea ice minimum at this time also led to significant quantities of Pacific?derived surface water in the westernmost part of the Makarov Basin. We also find larger quantities of meteoric water near Lomonosov Ridge than were found in 1995. Dissolved barium is depleted in the upper layers in one region of our study area, probably as a result of biological activity in open waters. Increasingly ice?free conditions compromise the quantitative use of barium as a tracer of river water in the Arctic Ocean.
0094-8276
L07602
Abrahamsen, E. Povl
fedecbff-9554-480b-a743-8ecf32fdb2f7
Meredith, Michael P.
25fd5f1c-f3ed-40a2-af59-5a7074a25fcd
Falkner, Kelly Kenison
9811a05b-2ae8-4c34-95ab-158d61533d7a
Torres-Valdes, Sinhue
50398d55-4df9-4b9e-a431-16936300650c
Leng, Melanie J.
71755042-2b5f-44a6-8420-019f13a4a946
Alkire, Matthew B.
029043c4-84bc-4d0d-978d-50af95180e8a
Bacon, Sheldon
1e7aa6e3-4fb4-4230-8ba7-90837304a9a7
Laxon, Seymour W.
9626beb4-a30c-4159-863a-7cfc745067f6
Polyakov, Igor
22dac305-7537-481c-a4f4-c3368c88f6ff
Ivanov, Vladimir
39517f5f-7b2b-484a-957b-57958e6f0da1
Abrahamsen, E. Povl
fedecbff-9554-480b-a743-8ecf32fdb2f7
Meredith, Michael P.
25fd5f1c-f3ed-40a2-af59-5a7074a25fcd
Falkner, Kelly Kenison
9811a05b-2ae8-4c34-95ab-158d61533d7a
Torres-Valdes, Sinhue
50398d55-4df9-4b9e-a431-16936300650c
Leng, Melanie J.
71755042-2b5f-44a6-8420-019f13a4a946
Alkire, Matthew B.
029043c4-84bc-4d0d-978d-50af95180e8a
Bacon, Sheldon
1e7aa6e3-4fb4-4230-8ba7-90837304a9a7
Laxon, Seymour W.
9626beb4-a30c-4159-863a-7cfc745067f6
Polyakov, Igor
22dac305-7537-481c-a4f4-c3368c88f6ff
Ivanov, Vladimir
39517f5f-7b2b-484a-957b-57958e6f0da1

Abrahamsen, E. Povl, Meredith, Michael P., Falkner, Kelly Kenison, Torres-Valdes, Sinhue, Leng, Melanie J., Alkire, Matthew B., Bacon, Sheldon, Laxon, Seymour W., Polyakov, Igor and Ivanov, Vladimir (2009) Tracer?derived freshwater composition of the Siberian continental shelf and slope following the extreme Arctic summer of 2007. Geophysical Research Letters, 36, L07602.

Record type: Article

Abstract

We investigate the freshwater composition of the shelf and slope of the Arctic Ocean north of the New Siberian Islands using geochemical tracer data (? 18O, Ba, and PO*4) collected following the extreme summer of 2007. We find that the anomalous wind patterns that partly explained the sea ice minimum at this time also led to significant quantities of Pacific?derived surface water in the westernmost part of the Makarov Basin. We also find larger quantities of meteoric water near Lomonosov Ridge than were found in 1995. Dissolved barium is depleted in the upper layers in one region of our study area, probably as a result of biological activity in open waters. Increasingly ice?free conditions compromise the quantitative use of barium as a tracer of river water in the Arctic Ocean.

PDF
2009GL037341-pip-with-notice_(Bacon).pdf - Accepted Manuscript
Download (664kB)

More information

Published date: 2 April 2009
Organisations: National Oceanography Centre,Southampton

Identifiers

Local EPrints ID: 66351
URI: https://eprints.soton.ac.uk/id/eprint/66351
ISSN: 0094-8276
PURE UUID: 138b69f0-7777-498c-9a61-06cd98a024ee

Catalogue record

Date deposited: 05 Jun 2009
Last modified: 29 Sep 2017 20:51

Export record

Contributors

Author: E. Povl Abrahamsen
Author: Michael P. Meredith
Author: Kelly Kenison Falkner
Author: Sinhue Torres-Valdes
Author: Melanie J. Leng
Author: Matthew B. Alkire
Author: Sheldon Bacon
Author: Seymour W. Laxon
Author: Igor Polyakov
Author: Vladimir Ivanov

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×