DOI: 10.1002/2015GL066669
论文题名: Changes in the geopotential height at 500 hPa under the influence of external climatic forcings
作者: Christidis N. ; Stott P.A.
刊名: Geophysical Research Letters
ISSN: 0094-8284
EISSN: 1944-8015
出版年: 2015
卷: 42, 期: 24 起始页码: 10798
结束页码: 10806
语种: 英语
英文关键词: anthropogenic forcings
; detection and attribution
Scopus关键词: Climate change
; Sea level
; Thermal expansion
; Climatic changes
; Climatic response
; Detection and attributions
; Forcings
; Geo-potential heights
; Human influences
; Optimal fingerprinting
; Sea level pressure
; Climate models
; anthropogenic effect
; climate forcing
; climate modeling
; data set
; detection method
; geopotential
; height
; pressure field
; satellite data
; sea level pressure
; temperature
; thermal expansion
; thermodynamics
; warming
英文摘要: Apart from global scale surface warming, anthropogenic forcings also lead to warming and thermal expansion of the lower atmosphere. Here we investigate these effects using the geopotential height at 500 hPa, an indicator of the combined thermodynamic and dynamic climatic response to external forcings. We employ optimal fingerprinting, which uses information from reanalysis data sets and experiments with seven state-of-the-art climate models, to assess the role of anthropogenic and natural influences on changes in the geopotential height during the satellite era. A significant global increase in the annual and seasonal mean geopotential height due to human influence is detected, a result confirmed with four different reanalysis data sets. A more moderate increase in the annual mean associated with natural forcings is also detected. Our findings, consistent with previous detection and attribution studies of changes in temperature and sea level pressure, indicate the prominent role of human influence on some recent climatic changes. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955215699&doi=10.1002%2f2015GL066669&partnerID=40&md5=f0960174c06ee2bccf6bbd967ce46914
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7900
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: Met Office Hadley Centre, Exeter, United Kingdom
Recommended Citation:
Christidis N.,Stott P.A.. Changes in the geopotential height at 500 hPa under the influence of external climatic forcings[J]. Geophysical Research Letters,2015-01-01,42(24).