| DOI: | 10.1002/2016GL068583
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| 论文题名: | Tropical cloud buoyancy is the same in a world with or without ice |
| 作者: | Seeley J.T.; Romps D.M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9148
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| EISSN: | 1944-8879
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| 出版年: | 2016
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| 卷: | 43, 期:7 | | 起始页码: | 3572
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| 结束页码: | 3579
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| 语种: | 英语
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| 英文关键词: | buoyancy
; convection
; ice
; latent heat
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| Scopus关键词: | Buoyancy
; Heat convection
; Latent heat
; Potential energy
; Reservoirs (water)
; Tropics
; Troposphere
; Condensed water
; Convective available potential energies
; Convective clouds
; Environmental temperature
; Latent heat of fusion
; Radiative-convective equilibrium
; Tropical clouds
; Upper troposphere
; Ice
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| 英文摘要: | When convective clouds grow above the melting line, where temperatures fall below 0°C, condensed water begins to freeze and water vapor is deposited. These processes release the latent heat of fusion, which warms cloud air, and many previous studies have suggested that this heating from fusion increases cloud buoyancy in the upper troposphere. Here we use numerical simulations of radiative-convective equilibrium with and without ice processes to argue that tropical cloud buoyancy is not systematically higher in a world with fusion than in a world without it. This insensitivity results from the fact that the environmental temperature profile encountered by developing tropical clouds is itself determined by convection. We also offer a simple explanation for the large reservoir of convective available potential energy in the tropical upper troposphere that does not invoke ice. © 2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979493636&doi=10.1002%2f2016GL068583&partnerID=40&md5=72f41d6a7646d165ff9a2fdb6700b13a
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| Citation statistics: |
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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/10111
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Earth and Planetary Science, University of California, Berkeley, CA, United States
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| Recommended Citation: | |
Seeley J.T.,Romps D.M.. Tropical cloud buoyancy is the same in a world with or without ice[J]. Geophysical Research Letters,2016-01-01,43(7).
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