Analysis of the Meridional Energy Transport by Atmospheric Overturning Circulations
Analysis of the Meridional Energy Transport by Atmospheric Overturning Circulations
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DOI：
10.1175/2010jas3493.1
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发表时间：
2011-08
影响因子：
3.1
通讯作者：
K. Döös;J. Nilsson
中科院分区：
文献类型：
--
作者：
K. Döös;J. Nilsson
AbstractThe atmospheric meridional overturning circulation is computed using the interim European Centre for Medium-Range Weather Forecasts Re-Analysis (ERA-Interim) data. Meridional mass transport streamfunctions are calculated not only using pressure as a vertical coordinate but also using temperature, specific humidity, and geopotential height as generalized vertical coordinates. Moreover, mass transport streamfunctions are calculated using the latent, the dry static, or the moist static energy as generalized vertical coordinates. The total meridional energy transport can be obtained by integrating these streamfunctions “vertically” over their entire energy range. The time-averaged mass transport streamfunctions are also decomposed into mean-flow and eddy-induced components. The meridional mass transport streamfunctions with temperature and specific humidity as independent variables yield a two-cell structure with a tropical Hadley-like cell and a pronounced extratropical Ferrel-like cell, which carrie...
