| DOI: | 10.1002/2013GL058350
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| 论文题名: | Recent variability of the tropical tropopause inversion layer |
| 作者: | Wang W.; Matthes K.; Schmidt T.; Neef L.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8343
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| EISSN: | 1944-8074
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| 出版年: | 2013
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| 卷: | 40, 期:23 | | 起始页码: | 6308
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| 结束页码: | 6313
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| 语种: | 英语
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| 英文关键词: | TIL variability
; tropopause inversion layer
; tropopause temperature
; UTLS
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| Scopus关键词: | National center for atmospheric researches
; Radio occultations
; TIL variability
; Tropical tropopause
; UTLS
; Vertical resolution
; Vertical temperature gradients
; Whole atmosphere community climate models
; Atmospheric temperature
; Computer simulation
; Inversion layers
; Tropics
; Clouds
; climate modeling
; cooling
; data set
; GPS
; inversion layer
; radiative forcing
; resolution
; temperature gradient
; tropopause
; warming
; water vapor
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| 英文摘要: | The recent variability of the tropopause temperature and the tropopause inversion layer (TIL) are investigated with Global Positioning System Radio Occultation data and simulations with the National Center for Atmospheric Research's Whole Atmosphere Community Climate Model (WACCM). Over the past decade (2001-2011) the data show an increase of 0.8 K in the tropopause temperature and a decrease of 0.4 K in the strength of the tropopause inversion layer in the tropics, meaning that the vertical temperature gradient has declined, and therefore that the stability above the tropopause has weakened. WACCM simulations with finer vertical resolution show a more realistic TIL structure and variability. Model simulations show that the increased tropopause temperature and the weaker tropopause inversion layer are related to weakened upwelling in the tropics. Such changes in the thermal structure of the upper troposphere and lower stratosphere may have important implications for climate, such as a possible rise in water vapor in the lower stratosphere. Key Points Tropical tropopause temp. increase, strength of TIL decrease over last decade Radiative cooling and dynamical warming contribute to TIL variability WACCM with finer vertical resolution captures TIL variability better ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84889595275&doi=10.1002%2f2013GL058350&partnerID=40&md5=bd5635e76c83d6f8cdd1a9fd2010287d
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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/5607
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Freie Universität Berlin, Institut für Meteorologie, Berlin, Germany
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| Recommended Citation: | |
Wang W.,Matthes K.,Schmidt T.,et al. Recent variability of the tropical tropopause inversion layer[J]. Geophysical Research Letters,2013-01-01,40(23).
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