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DOI | 10.1002/2015GL063290 |
The impact of advection on stratification and chlorophyll variability in the equatorial Pacific | |
Dave, Apurva C.1,2; Lozier, M. Susan1 | |
发表日期 | 2015-06-16 |
ISSN | 0094-8276 |
卷号 | 42期号:11页码:4523-4531 |
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 oceana crucial requirement for assessing future marine ecosystem responses to a changing climate. |
英文关键词 | ocean;climate;ecosystem;advection |
语种 | 英语 |
WOS记录号 | WOS:000357511200034 |
来源期刊 | GEOPHYSICAL RESEARCH LETTERS |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/57623 |
作者单位 | 1.Duke Univ, Nicholas Sch Environm, Div Earth & Ocean Sci, Durham, NC 27708 USA; 2.US EPA, Off Atmospher Programs, Washington, DC 20460 USA |
推荐引用方式 GB/T 7714 | Dave, Apurva C.,Lozier, M. Susan. The impact of advection on stratification and chlorophyll variability in the equatorial Pacific[J]. 美国环保署,2015,42(11):4523-4531. |
APA | Dave, Apurva C.,&Lozier, M. Susan.(2015).The impact of advection on stratification and chlorophyll variability in the equatorial Pacific.GEOPHYSICAL RESEARCH LETTERS,42(11),4523-4531. |
MLA | Dave, Apurva C.,et al."The impact of advection on stratification and chlorophyll variability in the equatorial Pacific".GEOPHYSICAL RESEARCH LETTERS 42.11(2015):4523-4531. |
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