DOI: 10.1175/JCLI-D-13-00538.1
Scopus记录号: 2-s2.0-84897012055
论文题名: Contributions of the hadley and ferrel circulations to the energetics of the atmosphere over the past 32 years
作者: Huang J. ; Mcelroy M.B.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 7 起始页码: 2656
结束页码: 2666
语种: 英语
Scopus关键词: Kinetics
; Meteorology
; A-coefficient
; Atmospheric kinetics
; Diabatic heating
; Energy inputs
; Meteorological data
; Power production
; Sea surface temperature (SST)
; Thermodynamic efficiency
; Kinetic energy
; diabatic process
; Hadley cell
; heating
; sea surface temperature
; thermodynamic property
英文摘要: The Hadley system provides an example of a thermally direct circulation; the Ferrel systemin contrast provides an example of a thermally indirect circulation. In this study, the authors develop an approach to investigate the key thermodynamic properties of the Hadley and Ferrel systems, quantifying them using assimilated meteorological data covering the period January 1979-December 2010. This analysis offers a fresh perspective on the conversion of energy in the atmosphere from diabatic heating to the production of atmospheric kinetic energy. The results indicate that the thermodynamic efficiency of the Hadley system, considered as a heat engine, has been relatively constant over the 32-yr period covered by the analysis, averaging 2.6%. Over the same interval, the power generated by the Hadley regime has risen at an average rate of about 0.54 TWyr-1; this reflects an increase in energy input to the systemconsistentwith the observed trend in the tropical sea surface temperatures. The Ferrel system acts as a heat pump with a coefficient of performance of 12.1, consuming kinetic energy at an approximate rate of 275 TW and exceeding the power production rate of the Hadley system by 77 TW.© 2014 American Meteorological Society. 资助项目: NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51248
Appears in Collections: 气候变化事实与影响
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作者单位: School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
Recommended Citation:
Huang J.,Mcelroy M.B.. Contributions of the hadley and ferrel circulations to the energetics of the atmosphere over the past 32 years[J]. Journal of Climate,2014-01-01,27(7)