| DOI: | 10.1175/JCLI-D-14-00591.1
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| Scopus记录号: | 2-s2.0-84949883891
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| 论文题名: | Variability and trends in surface meteorology and air-sea fluxes at a site off northern Chile |
| 作者: | Weller R.A.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2015
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| 卷: | 28, 期:8 | | 起始页码: | 3004
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| 结束页码: | 3023
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| 语种: | 英语
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| Scopus关键词: | Meteorology
; Oceanography
; Weather forecasting
; Wind
; Wind stress
; Air-sea exchange
; Air-sea heat flux
; Annual variability
; Atmosphere-ocean coupling
; Interannual variability
; Numerical weather prediction models
; Short-wave radiation
; Stratocumulus clouds
; Heat flux
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| 英文摘要: | Time series of surface meteorology and air-sea exchanges of heat, freshwater, and momentum collected from a long-term surface mooring located 1600 km west of the coast of northern Chile are analyzed. The observations, spanning 2000-10, have been withheld from assimilation into numerical weather prediction models. As such, they provide a unique in situ record of atmosphere-ocean coupling in a trade wind region characterized by persistent stratocumulus clouds. The annual cycle is described, as is the interannual variability. Annual variability in the air-sea heat flux is dominated by the annual cycle in net shortwave radiation. In austral summer, the ocean is heated; the 9-yr mean annual heating of the ocean is 38Wm-2. Ocean cooling is seen in 2006-08, coincident with La Niña events. Over the full record, significant trends were found. Increases in wind speed, wind stress, and latent heat flux over 9 yr were 0.8ms-1, 0.022Nm-2, and 20Wm-2 or 13%, 29%, and 20% of the respective 9-yr means. The decrease in the annual mean net heat flux was 39Wm-2 or 104% of the mean. These changes were found to be largely associated with spring and fall. If this change persists, the annual mean net air-sea heat flux will change sign by 2016, when the magnitude of the wind stress will have increased by close to 60%. © 2015 American Meteorological Society. |
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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/50705
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Woods Hole Oceanographic Institution, Woods Hole, MA, United States
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| Recommended Citation: | |
Weller R.A.. Variability and trends in surface meteorology and air-sea fluxes at a site off northern Chile[J]. Journal of Climate,2015-01-01,28(8)
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