DOI: 10.1002/2016GL070252
论文题名: Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes
作者: Randelhoff A. ; Guthrie J.D.
刊名: Geophysical Research Letters
ISSN: 0094-8738
EISSN: 1944-8469
出版年: 2016
卷: 43, 期: 16 起始页码: 8600
结束页码: 8608
语种: 英语
英文关键词: central Arctic Ocean
; export production
; nitrate
; turbulence
Scopus关键词: Biological materials
; Budget control
; Carbon
; Nitrates
; Nutrients
; Turbulence
; Arctic ocean
; Export production
; Light limitations
; Nitrate concentration
; Particulate organic matters
; Primary productivity
; Regional differences
; Turbulent microstructure
; Oceanography
英文摘要: Due to severe nutrient and light limitation, the central Arctic Ocean has been characterized as a region of low primary productivity, with high retention of carbon in the surface waters. Using an in-depth analysis of published and new measurements of turbulent microstructure and high-resolution profiles of nitrate concentration, we reassess the vertical supply of nitrate to the Polar Mixed Layer and the associated export of particulate organic matter across the nitracline. We estimate annual export production to be approximately 1.5–3 g C m−2, but regional differences in both current and future potential of export production are large, with the eastern Arctic being least constrained by vertical nutrient supply and the western Arctic the most. Future changes in export production are assessed using a 1-D budget model; increases in the Atlantic sector are possibly compensated by decreases in the rest of the central Arctic Ocean such that the net change might be insignificant. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983347961&doi=10.1002%2f2016GL070252&partnerID=40&md5=0e3c4c57d05ef34ac1ef832bee555502
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9701
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute for Arctic and Marine Biology, University of Tromsø, Tromsø, Norway
Recommended Citation:
Randelhoff A.,Guthrie J.D.. Regional patterns in current and future export production in the central Arctic Ocean quantified from nitrate fluxes[J]. Geophysical Research Letters,2016-01-01,43(16).