| DOI: | 10.1175/JCLI-D-17-0642.1
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| Scopus记录号: | 2-s2.0-85047067202
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| 论文题名: | Unrealistic increases in wind speed explain reduced Eastern Pacific heat flux in reanalyses |
| 作者: | Liu C.; Allan R.P.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2018
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| 卷: | 31, 期:8 | | 起始页码: | 2981
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| 结束页码: | 2993
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| 语种: | 英语
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| 英文关键词: | Cloud cover
; Latent heating/cooling
; Tropics
; Turbulence
; Wind
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| Scopus关键词: | Atmospheric temperature
; Climate models
; Latent heat
; Oceanography
; Surface measurement
; Surface properties
; Surface waters
; Tropics
; Turbulence
; Wind
; Wind effects
; Buoy observations
; Climate model simulations
; Cloud cover
; Global mean surface temperature
; Latent heating/cooling
; Net surface flux
; Sea surface temperature (SST)
; Surface energy fluxes
; Heat flux
; climate modeling
; cloud cover
; cooling
; heat flux
; latent heat flux
; sea surface temperature
; tropical region
; turbulence
; wind velocity
; Pacific Ocean
; Pacific Ocean (East)
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| 英文摘要: | Tropical eastern Pacific sea surface temperature plays a pivotal role in mechanisms that determine global mean surface temperature variability. In this study, the surface flux contribution to recent cooling of the tropical eastern Pacific is investigated using data from three atmospheric reanalyses with full assimilation of observations, an observation-based net surface energy flux reconstruction, and 15 atmosphere-only climate model simulations. For ERA-Interim, 78% of the decrease in net surface flux (-0.65 W m-2 yr-1 over 1988-2008) is explained by the latent heat flux variability. Latent heat flux variability differs between datasets, and this is investigated using a bulk formula. It is found that discrepancies in wind speed change explain contrasting latent heat flux trends across datasets. The significant increase in wind speed of 0.26 m s-1 decade-1 over the tropical eastern Pacific in ERA-Interim is not reproduced by satellite or buoy observations or atmosphere-only climate model simulations, casting questions on the reliability of reanalysis-based surface fluxes over the tropical eastern Pacific. © 2018 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/111576
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Meteorology, University of Reading, United Kingdom; National Centre for Earth Observation, Reading, United Kingdom
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| Recommended Citation: | |
Liu C.,Allan R.P.. Unrealistic increases in wind speed explain reduced Eastern Pacific heat flux in reanalyses[J]. Journal of Climate,2018-01-01,31(8)
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