HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Environmental Science / Faculty of Environmental Earth Science >
Peer-reviewed Journal Articles, etc >

Application of chemical tracers to an estimate of benthic denitrification in the Okhotsk Sea

Files in This Item:
Ito_JO2014fig.pdf785.09 kBPDFView/Open
Ito_JO2014table.pdf12.52 kBPDFView/Open
Ito_JO2014text.pdf152.35 kBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/59719

Title: Application of chemical tracers to an estimate of benthic denitrification in the Okhotsk Sea
Authors: Ito, Masanori Browse this author
Watanabe, Yutaka W. Browse this author →KAKEN DB
Shigemitsu, Masahito Browse this author
Tanaka, Shinichi S. Browse this author
Nishioka, Jun Browse this author →KAKEN DB
Keywords: Benthic denitrification
The marginal sea
The Okhotsk Sea
Chemical tracer
Multiple linear regression analysis
Issue Date: 1-Oct-2014
Publisher: Springer
Journal Title: Journal of oceanography
Volume: 70
Issue: 5
Start Page: 415
End Page: 424
Publisher DOI: 10.1007/s10872-014-0241-9
Abstract: To estimate benthic denitrification in a marginal sea, we assessed the usefulness of , a new tracer to measure the excess nitrogen gas (N-2) using dissolved N-2 and argon (Ar) with N* in the intermediate layer (26.6-27.4 sigma (theta) ) of the Okhotsk Sea. The examined parameters capable of affecting are denitrification, air injection and rapid cooling. We investigated the relative proportions of these effects on using multiple linear regression analysis. The best model included two examined parameters of denitrification and air injection based on the Akaike information criterion as a measure of the model fit to data. More than 80 % of was derived from the denitrification, followed by air injection. Denitrification over the Okhotsk Sea shelf region was estimated to be 5.6 +/- A 2.4 mu mol kg(-1). The distribution of was correlated with potential temperature (theta) between 26.6 and 27.4 sigma (theta) (r = -0.55). Therefore, we concluded that and N* can act complementarily as a quasi-conservative tracer of benthic denitrification in the Okhotsk Sea. Our findings suggest that in combination with N* is a useful chemical tracer to estimate benthic denitrification in a marginal sea.
Description: Published online: 24 August 2014
Rights: The final publication is available at Springer via http://dx.doi.org/10.1007/s10872-014-0241-9, © The Oceanographic Society of Japan and Springer Japan 2014
Type: article (author version)
URI: http://hdl.handle.net/2115/59719
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 渡辺 豊

Export metadata:

OAI-PMH ( junii2 , jpcoar )


 

Feedback - Hokkaido University