Climatological Vertical Features of Hadley Circulation Depicted by the NCEP/NCAR, ERA40, NCEP-DOE, JRA25, ERA-Interim, and CFSR Reanalyses

Abstract

The climatological features of the pole-ward, equator-ward edges, and the width of the tropical Hadley Cell (HC) during the annual cycle in each hemisphere are studied based on six reanalyses datasets (i.e., NCEP/NCAR, NCEP-DOE, ERA40, JRA25, ERA-Interim, and CFSR). The result indicates that the amplitude of HC in the Northern Hemisphere (NH) is much intense than that in the Southern Hemisphere (SH). And the amplitude of equator-ward edge is much larger than that of the pole-ward edges in both hemispheres. In addition, it is found that the ERA40, CFSR (for the pole-ward edge of HC in the SH) and JRA25 (for the pole-ward edge of the HC in the NH) show big inconsistency comparing with the other datasets in depicting the locations of pole-ward edges of HC.