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Has the Hadley cell been strengthening in recent decades?
Abstract
The intensity and structure of the Northern Hemisphere DJF Hadley cell as depicted in various commonly used data sets are examined. We find that the NCEP/NCAR and ECMWF reanalyses show a statistically significant intensification of their Hadley circulation throughout their periods. In marked contrast the NCEP‐DOE reanalysis does not show any discernible trend over its period. Furthermore, the Hadley cell structure differs substantially from the other two reanalyses. We also examine a data set of global rawinsonde observations in which the Hadley cell shows no intensification. Finally, we investigate the Hadley cell simulated by an atmospheric GCM. The ensemble mean shows a statistically significant intensification, though it is smaller in magnitude than the reanalyses. We conclude that the two major reanalyses appear to be in agreement on the strengthening of the Hadley cell in recent decades. However, discrepancies among data sets do raise questions about the robustness of this strengthening.
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Cited by
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Held, I. M., & Soden, B. J. (2006) · Journal of Climate · doi:10.1175/jcli3990.1 · Cited by 4,959
Expansion of the Hadley cell under global warming
Lu, J., Vecchi, G. A., & Reichler, T. (2007) · Geophysical Research Letters · doi:10.1029/2006gl028443 · Cited by 1,219
How Well Do We Understand and Evaluate Climate Change Feedback Processes?
Bony, S., Colman, R., Kattsov, V. M., Allan, R. P., Bretherton, C. S., Dufresne, J.-L., Hall, A., Hallegatte, S., Holland, M. M., Ingram, W., et al. (2006) · Journal of Climate · doi:10.1175/jcli3819.1 · Cited by 1,038
If Precipitation Extremes Are Increasing, Why Aren't Floods?
Sharma, A., Wasko, C., & Lettenmaier, D. P. (2018) · Water Resources Research · doi:10.1029/2018wr023749 · Cited by 528
Observed poleward expansion of the Hadley circulation since 1979
Hu, Y., & Fu, Q. (2007) · Atmospheric Chemistry and Physics · doi:10.5194/acp-7-5229-2007 · Cited by 511
Metadata
- Authors
- Mitas, C. M., & Clement, A.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 2005-02
- Volume
- 32
- Issue
- 3
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W1992553796
- Cited by
- 234
- References
- 0
- FWCI
- 11.29
- Type
- journal article
- Language
- en
- Open access
- closed
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