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Title: Further Observational Evidence of Hadley Cell Widening in the Southern Hemisphere

Abstract

Various observational and modeling studies have shown that the Hadley cell (HC) has widened during the past few decades. Here, we present further observational evidence of the widening of the HC in the Southern Hemisphere by tracking the location of the subtropical ridge. A robust and significant poleward shift of the southern edge of the HC has been observed during the austral summer over the past three decades with a shift of 0.22 degrees per decade having occurred between 1980 and 2012, primarily from the South Atlantic Ocean to Australia. In other seasons, significant changes in the southern edge of the HC have not been observed, with a discernable regional trend having only occurred in a limited region. The comparison of these results with those derived from reanalysis data and possible causes for the summer HC expansion are briefly discussed.

Authors:
; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1132189
Report Number(s):
PNNL-SA-100967
KP1703010
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Geophysical Research Letters, 41(7):2590–2597
Additional Journal Information:
Journal Name: Geophysical Research Letters, 41(7):2590–2597
Country of Publication:
United States
Language:
English
Subject:
Hadley cell; widening; southern hemisphere; poleward

Citation Formats

Choi, Jung, Son, Seok-Woo, Lu, Jian, and Min, Seung-Ki. Further Observational Evidence of Hadley Cell Widening in the Southern Hemisphere. United States: N. p., 2014. Web. doi:10.1002/2014GL059426.
Choi, Jung, Son, Seok-Woo, Lu, Jian, & Min, Seung-Ki. Further Observational Evidence of Hadley Cell Widening in the Southern Hemisphere. United States. https://doi.org/10.1002/2014GL059426
Choi, Jung, Son, Seok-Woo, Lu, Jian, and Min, Seung-Ki. 2014. "Further Observational Evidence of Hadley Cell Widening in the Southern Hemisphere". United States. https://doi.org/10.1002/2014GL059426.
@article{osti_1132189,
title = {Further Observational Evidence of Hadley Cell Widening in the Southern Hemisphere},
author = {Choi, Jung and Son, Seok-Woo and Lu, Jian and Min, Seung-Ki},
abstractNote = {Various observational and modeling studies have shown that the Hadley cell (HC) has widened during the past few decades. Here, we present further observational evidence of the widening of the HC in the Southern Hemisphere by tracking the location of the subtropical ridge. A robust and significant poleward shift of the southern edge of the HC has been observed during the austral summer over the past three decades with a shift of 0.22 degrees per decade having occurred between 1980 and 2012, primarily from the South Atlantic Ocean to Australia. In other seasons, significant changes in the southern edge of the HC have not been observed, with a discernable regional trend having only occurred in a limited region. The comparison of these results with those derived from reanalysis data and possible causes for the summer HC expansion are briefly discussed.},
doi = {10.1002/2014GL059426},
url = {https://www.osti.gov/biblio/1132189}, journal = {Geophysical Research Letters, 41(7):2590–2597},
number = ,
volume = ,
place = {United States},
year = {Wed Apr 16 00:00:00 EDT 2014},
month = {Wed Apr 16 00:00:00 EDT 2014}
}