globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-015-2496-2
Scopus记录号: 2-s2.0-84945570393
论文题名:
Effect of high-frequency wind on intraseasonal SST variabilities over the mid-latitude North Pacific region during boreal summer
作者: Wang L.; Li T.; Zhou T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 45, 期:2017-09-10
起始页码: 2607
结束页码: 2617
语种: 英语
英文关键词: Air-sea interaction ; High frequency wind ; Intraseasonal oscillation ; North Pacific ; Sea surface temperature ; Upscale feedback
英文摘要: The effect of high-frequency (period <20 days) wind on the intraseasonal (period 20–100 days) sea surface temperature (SST) anomalies over the mid-latitude North Pacific region (35°–45°N, 160°E–170°W) during boreal summer was examined through the diagnosis of reanalysis data and numerical experiments. The reanalysis data diagnosis shows that the near-surface high-frequency (HF) wind is weaker (stronger) during the intraseasonal SST warming (cooling) phase. The phase-dependent amplitude of HF wind is controled by the strength change of the upper-tropospheric westerly jet stream. Because the magnitude of the HF wind over the target region shows significantly positive correlation with the total wind speed, a weaker (higher) HF wind in the SST warming (cooling) phase tends to decrease (increase) total wind speed, which can further suppress (enhance) upward surface latent heat and sensible heat fluxes and strengthen the intraseasonal SST variability. The numerical experiments with an oceanic general circulation model demonstrate that the HF wind can amplify the intraseasonal SST variability over the target region mainly through nonlinearly rectifying intraseasonal surface latent and sensible heat fluxes. The HF wind can explain about 20 % of the intraseasonal SST variability in the target region. © 2015, Springer-Verlag Berlin Heidelberg.
资助项目: JAMSTEC, Japan Agency for Marine-Earth Science and Technology ; NSFC, Japan Agency for Marine-Earth Science and Technology ; ONR, Japan Agency for Marine-Earth Science and Technology
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53945
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作者单位: International Laboratory on Climate and Environment Change and Key Laboratory of Meteorological Disaster, Nanjing University of Information Science and Technology, Nanjing, China; IPRC and Department of Atmospheric Sciences, University of Hawaii at Manoa, POST Bldg, Room 409B, 1680 East-West Road, Honolulu, HI, United States; LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Wang L.,Li T.,Zhou T.. Effect of high-frequency wind on intraseasonal SST variabilities over the mid-latitude North Pacific region during boreal summer[J]. Climate Dynamics,2015-01-01,45(2017-09-10)
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