Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL092911 |
Delayed collapse of the North Pacific Intermediate Water after the glacial termination | |
Debo Zhao; Shiming Wan; Zhengyao Lu; Lina Zhai; Xuguang Feng; Xuefa Shi; Anchun Li | |
2021-06-26 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Carbon release from the North Pacific in glacial-interglacial cycles has been mainly linked to the North Pacific Intermediate Water (NPIW) formation and associated carbon/nutrient water upwelling and biological productivity changes. However, relationship between NPIW and atmospheric CO2 change in the early interglacial remains unclear. Here we report a high-resolution sediment record of NPIW evolution based on paleo-redox changes in the Western North Pacific during the last 400 ka. Our proxy and model results reveal a delayed collapse of NPIW after the glacial termination was coeval with decreased salinity of intermediate water and increased net rainfall in the North Pacific. Such weakened NPIW formation in the North Pacific probably make a contribution to maintain high atmospheric CO2 concentrations through weakened intermediate-to-deep ocean stratification and reduced subsurface biological pump net efficiency, countering the return to more stratified conditions in the Southern Ocean, which should drive down atmospheric CO2 during the early interglacial. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/333741 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Debo Zhao,Shiming Wan,Zhengyao Lu,et al. Delayed collapse of the North Pacific Intermediate Water after the glacial termination[J]. Geophysical Research Letters,2021. |
APA | Debo Zhao.,Shiming Wan.,Zhengyao Lu.,Lina Zhai.,Xuguang Feng.,...&Anchun Li.(2021).Delayed collapse of the North Pacific Intermediate Water after the glacial termination.Geophysical Research Letters. |
MLA | Debo Zhao,et al."Delayed collapse of the North Pacific Intermediate Water after the glacial termination".Geophysical Research Letters (2021). |
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