DOI: 10.1029/2019GB006327
论文题名: Warm Events Induce Loss of Resilience in Organic Carbon Production in the Northeast Pacific Ocean
作者: Bif M.B. ; Siqueira L. ; Hansell D.A.
刊名: Global Biogeochemical Cycles
ISSN: 0886-6236
EISSN: 1944-9224
出版年: 2019
卷: 33, 期: 9 语种: 英语
英文关键词: atmosphere-ocean coupling
; carbon sequestration
; El Nino
; net primary production
; organic carbon
; sea level pressure
; sea surface temperature
; stratification
; Pacific Ocean
; Pacific Ocean (Northeast)
学科: carbon cycle
; El Niño
; net community production
; organic matter
; the Warm Blob
中文摘要: Between 2013 and 2016, a series of warm events induced by ocean atmosphere oscillations negatively impacted productivity in the northeast Pacific Ocean. For two consecutive winters (2013–2014 and 2014–2015), suppressed wind stress and warm near-surface ocean temperature anomalies restricted vertical mixing between the surface and underlying nutrient-enriched waters. Here we assess historical data of sea surface temperature and sea level pressure, along with nearly a decade of biogeochemical float data to evaluate the impact of these warm events on organic carbon production. The first stratified winter experienced little apparent impact on the magnitude of net organic carbon production in the growing season relative to prior years, suggesting an immediate resilience from reduced new nutrients, apparently depending on recycled iron. However, the subsequent winter experienced virtually zero net production; a loss of resilience, perhaps due to net iron removal with export, was evident. We find that consistently enhanced winter stratification decreased carbon production much more so than a single warm winter. This study highlights the sensitivity of marine productivity to ocean atmosphere oscillations, reducing deep ocean carbon sequestration with prolonged ocean warming and stratification. © 2019. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160105
Appears in Collections: 气候变化与战略
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作者单位: Department of Ocean Sciences, Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, FL, United States; Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States; Department of Atmospheric Sciences, Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, FL, United States
Recommended Citation:
Bif M.B.,Siqueira L.,Hansell D.A.. Warm Events Induce Loss of Resilience in Organic Carbon Production in the Northeast Pacific Ocean[J]. Global Biogeochemical Cycles,2019-01-01,33(9)