DOI: 10.1002/2015GL063290
论文题名: The impact of advection on stratification and chlorophyll variability in the equatorial Pacific
作者: Dave A.C. ; Lozier M.S.
刊名: Geophysical Research Letters
ISSN: 0094-9353
EISSN: 1944-9084
出版年: 2015
卷: 42, 期: 11 起始页码: 4523
结束页码: 4531
语种: 英语
英文关键词: advection
; climate
; ecosystem
; ocean
Scopus关键词: Advection
; Budget control
; Chlorophyll
; Ecology
; Ecosystems
; Climate
; Equatorial Pacific
; Horizontal advection
; Interannual variability
; Ocean
; Phytoplankton biomass
; Three-dimensional frameworks
; Vertical advection
; Nutrients
英文摘要: Previously reported global-scale correlations between interannual variability in upper ocean stratification and chlorophyll a (a proxy for phytoplankton biomass) have been shown to be driven by strong associations between the two properties in the central and western equatorial Pacific. Herein, we present evidence that these correlations are not causal but instead result from the advection of heat, salt, and nutrients in the region. Specifically, we demonstrate that stratification and chlorophyll are simultaneously influenced by shifts in the horizontal advective inputs of cold/saline/nutrient-rich waters from upwelling regions to the east and warm/fresh/nutrient-poor waters to the west. We find that horizontal advection contributes substantially to the annual surface layer nutrient budget and, together with vertical advection, significantly impacts interannual variability in chlorophyll. These results highlight the importance of a three-dimensional framework for examining nutrient supply in the upper ocean - a crucial requirement for assessing future marine ecosystem responses to a changing climate. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84934438955&doi=10.1002%2f2015GL063290&partnerID=40&md5=4490d06d25b3f52a196ba43e6d507c9d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8968
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: Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, NC, United States
Recommended Citation:
Dave A.C.,Lozier M.S.. The impact of advection on stratification and chlorophyll variability in the equatorial Pacific[J]. Geophysical Research Letters,2015-01-01,42(11).