| DOI: | 10.1002/2014GL061987
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| 论文题名: | Regional variation of the tropical water vapor and lapse rate feedbacks |
| 作者: | Lambert F.H.; Taylor P.C.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9641
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| EISSN: | 1944-9372
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| 出版年: | 2014
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| 卷: | 41, 期:21 | | 起始页码: | 7634
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| 结束页码: | 7641
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| 语种: | 英语
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| 英文关键词: | climate feedbacks
; climate models
; water vapor
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| Scopus关键词: | Atmospheric temperature
; Climate models
; Surface properties
; Tropics
; Water vapor
; Climate feedbacks
; Feedback structure
; Precipitation change
; Regional variation
; Surface temperature changes
; Surface temperatures
; Tropical troposphere
; Water vapor feedbacks
; Feedback
; climate feedback
; climate modeling
; correlation
; precipitation (climatology)
; regional pattern
; surface temperature
; tropical environment
; uncertainty analysis
; water vapor
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| 英文摘要: | The global and tropical mean water vapor and lapse rate radiative feedbacks are anticorrelated across contemporary climate models. Hence, despite substantial uncertainty in both, uncertainty in total clear-sky modeled radiative feedback is small compared with other sources of feedback spread. Previous work has demonstrated that no such correlation exists when grid point water vapor and lapse rate feedbacks are considered within one model. Here we show that robust physical processes nevertheless determine significant aspects of both the water vapor and particularly the lapse rate feedbacks within the tropics. The lapse rate feedback increases with surface temperature change because the tropical troposphere cannot maintain strong temperature gradients. The water vapor feedback increases weakly with surface temperature over tropical ocean but slightly decreases over land, associated with moisture availability. Water vapor feedback is more strongly related to precipitation changes, increasing most strongly in the heaviest precipitating regions and least in the weakest. Key Points Tropical lapse rate and water vapor feedbacks have robust regional structuresRegional feedback structures are explained by physical processesModel results allow a future comparison with observations ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84912094255&doi=10.1002%2f2014GL061987&partnerID=40&md5=e54f176d452fd5365d5a5f9fd20b255f
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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/6905
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| Appears in Collections: | 气候减缓与适应
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作者单位: | College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom
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| Recommended Citation: | |
Lambert F.H.,Taylor P.C.. Regional variation of the tropical water vapor and lapse rate feedbacks[J]. Geophysical Research Letters,2014-01-01,41(21).
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