Water masses and I-129 distribution in the Nordic Seas
2013 (English)In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, ISSN 0168-583X, Vol. 294, 542-546 p.Article in journal, Meeting abstract (Refereed) Published
The application of the radioactive isotope iodine-129 as a tracer of water circulation in the oceans has provided interesting information with respect to sources and mixing of different water masses. We here present results of I-129 distribution in water profiles located in the Nordic Seas and use the isotope to fingerprint water masses in the region. The samples were collected by the US research vessel Knorr in May-June 2002. I-129 signatures along the Norwegian Sea reflect a mixing of I-129-rich surface water along the Scandinavian continental slope and I-129-poor North Atlantic surface water. These two water masses become less segregated along the Fram Strait where apparent I-129 enrichment penetrates the return Arctic flow into the East Greenland Current. The I-129 data further suggest existence of a water mass that is not entirely labeled with respect to origin at the Denmark Strait bottom water. This water parcel probably originates from the Iceland Sea. I-129 data also shed light on the major deep water outflow from the Nordic Seas located at the Faeroe Bank Channel.
Place, publisher, year, edition, pages
2013. Vol. 294, 542-546 p.
IdentifiersURN: urn:nbn:se:uu:diva-194214DOI: 10.1016/j.nimb.2012.07.042ISI: 000313234300104OAI: oai:DiVA.org:uu-194214DiVA: diva2:604974
12th International Conference on Accelerator Mass Spectrometry (AMS), 20-25 March 2011, Wellington, NEW ZEALAND