| DOI: | 10.1029/2017JC013414
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| Scopus记录号: | 2-s2.0-85051188288
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| 论文题名: | Does Pacific Variability Influence the Northwest Atlantic Shelf Temperature? |
| 作者: | Chen K.; Kwon Y.-O.
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| 刊名: | Journal of Geophysical Research: Oceans
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| ISSN: | 21699275
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| 出版年: | 2018
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| 卷: | 123, 期:6 | | 起始页码: | 4110
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| 结束页码: | 4131
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| 语种: | 英语
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| 英文关键词: | atmosphere-ocean interaction
; coastal to large-scale connections
; continental shelf temperature variability
; mixed layer temperature
; Pacific Decadal Oscillation
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| 英文摘要: | The relationship between North Pacific variability and sea surface temperature (SST) of the Northwest Atlantic continental shelf is examined over interannual time scale in 1982–2014. Statistically significant negative correlations exist between Pacific Decadal Oscillation (PDO) index and SST in the Gulf of Maine (GoM) in spring and summer. Cross-correlation analysis further suggests significant negative lead-lag correlations, with the spring PDO leading the GoM SST by 0–3 months while the summer PDO lags by 1–3 months. These correlations are dominated by the interannual component of the PDO. Statistical relationships are placed in context by further investigating the physical processes controlling the upper ocean mixed layer temperature budget in the GoM. The results reveal contrasting roles between the atmosphere and the ocean in spring and summer, respectively. Local atmospheric forcings, in particular the radiative air-sea fluxes, are the dominant driver for the interannual variability of springtime SST over the Northwest Atlantic shelf. In contrast, oceanic terms are important in controlling the interannual variability of summertime SST. As a result, reconstructed SST using atmospheric forcings successfully reproduces the statistical relationship with PDO in spring, but not in summer. Furthermore, it is shown that the SST anomalies in the central and eastern North Pacific play a key role in these relationships. © 2018. American Geophysical Union. All Rights Reserved. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/113798
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Physical Oceanography Department, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
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| Recommended Citation: | |
Chen K.,Kwon Y.-O.. Does Pacific Variability Influence the Northwest Atlantic Shelf Temperature?[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(6)
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