| DOI: | 10.1175/JCLI-D-15-0857.1
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| Scopus记录号: | 2-s2.0-84987934999
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| 论文题名: | Cloud radiative effects and precipitation in extratropical cyclones |
| 作者: | Polly J.B.; Rossow W.B.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2016
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| 卷: | 29, 期:18 | | 起始页码: | 6483
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| 结束页码: | 6507
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| 语种: | 英语
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| Scopus关键词: | Climatology
; Clouds
; Heating
; NASA
; Radiation effects
; Storms
; Cloud radiative effects
; Diabatic heating
; Extratropical cyclones
; Latent heating/cooling
; Seasonal variability
; Variability
; Precipitation (meteorology)
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| 英文摘要: | Clouds associated with extratropical cyclones complicate the well-developed theory of dry baroclinic waves through feedback on their dynamics by precipitation and cloud-altered radiative heating. The relationships between cyclone characteristics and the diabatic heating associated with cloud radiative effects (CREs) and latent heat release remain unclear. A cyclone tracking algorithm [NASA's Modeling, Analysis, and Prediction (MAP) Climatology of Midlatitude Storminess (MCMS)] is used to identify over 106 cyclones in 33 years of the ERA-Interim and collect the properties of each disturbance. Considering storm intensity as related to wind speeds, which depend on the pressure gradient, the distribution of cyclone properties is investigated using groups defined by their depth (local pressure anomaly) and the radius of the region within closed pressure contours to investigate variations with longitude (especially ocean and land), hemisphere, and season. Using global data products of cloud radiative effects on in-atmosphere net radiation [the ISCCP radiative flux profile dataset (ISCCP-FD)] and precipitation (GPCP), composites are assembled for each cyclone group and for "nonstormy" locations. On average, the precipitation rate and the CRE are approximately the same among all cyclone groups and do not strongly differ from nonstormy conditions. The variance of both precipitation and CRE increases with cyclone size and depth. In larger, deeper storms, maximum precipitation and CRE increase, but so do the amounts of nonprecipitating and clear-sky conditions. © 2016 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/50108
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Cooperative Remote Sensing Science and Technology Institute, City College of New York, New York, NY, United States
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| Recommended Citation: | |
Polly J.B.,Rossow W.B.. Cloud radiative effects and precipitation in extratropical cyclones[J]. Journal of Climate,2016-01-01,29(18)
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