| DOI: | 10.1002/grl.50439
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| 论文题名: | Nutrient enrichment of the subarctic Pacific Ocean pycnocline |
| 作者: | Whitney F.A.; Bograd S.J.; Ono T.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9041
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| EISSN: | 1944-8772
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| 出版年: | 2013
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| 卷: | 40, 期:10 | | 起始页码: | 2200
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| 结束页码: | 2205
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| 语种: | 英语
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| 英文关键词: | nutrient cycling
; oxygen transport
; subarctic Pacific
; time-series
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| Scopus关键词: | Global thermohaline circulation
; Nutrient cycling
; Nutrient enrichments
; Oxygen transport
; subarctic Pacific
; Subarctic Pacific Ocean
; Surface layers
; Surface ocean
; Climate models
; Nitrates
; Oceanography
; Oxygen
; Nutrients
; assessment method
; ecosystem modeling
; nutrient enrichment
; oxygen
; pycnocline
; surface layer
; thermohaline circulation
; time series analysis
; Pacific Ocean
; Pacific Ocean (Subarctic)
; Sea of Okhotsk
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| 英文摘要: | At the end of the global thermohaline circulation, the subarctic Pacific is the richest nutrient repository in the world oceans. Trends towards lower oxygen and higher nutrients in waters below the surface layer (the pycnocline) have been observed in recent decades. We assess these trends using data from four programs and suggest the enrichment of pycnocline nitrate (200 Gmol y -1) is essential in keeping supply to the surface ocean constant, despite increasing upper ocean stratification. A nitrate budget helps identify possible vertical processes that could account for nutrient redistribution. We hypothesize that warming and oxygen loss in the deeper pycnocline, arising from ice loss in the Okhotsk Sea, have initiated a largely vertical redistribution of nutrients due to compression of vertical migrator habitat and/or changes in dissolution of sinking particulates. Coupled climate-ecosystem models will need to incorporate these processes to more fully understand projected changes in the subarctic Pacific. © 2013 American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879958598&doi=10.1002%2fgrl.50439&partnerID=40&md5=30cc47e1c35052c04a9a7f54756b0578
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6305
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Fisheries and Oceans Canada, Institute of Ocean Sciences, Sidney, BC, Canada
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| Recommended Citation: | |
Whitney F.A.,Bograd S.J.,Ono T.. Nutrient enrichment of the subarctic Pacific Ocean pycnocline[J]. Geophysical Research Letters,2013-01-01,40(10).
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