Expansion of the Hadley cell under global warming
Abstract
A consistent weakening and poleward expansion of the Hadley circulation is diagnosed in the climate change simulations of the IPCC AR4 project. Associated with this widening is a poleward expansion of the subtropical dry zone. Simple scaling analysis supports the notion that the poleward extent of the Hadley cell is set by the location where the thermally driven jet first becomes baroclinically unstable. The expansion of the Hadley cell is caused by an increase in the subtropical static stability, which pushes poleward the baroclinic instability zone and hence the outer boundary of the Hadley cell.
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Hadley Cells are predicted to expand poleward in both hemispheres.
“The Hadley Cells are predicted to expand poleward in both hemispheres, and observational evidence indicates this has already begun to occur [7,8].”
From Anticipated Effects of Climate Change on Coastal Upwelling Ecosystems (2015) · cites this paper as [7]
Observational evidence indicates that Hadley Cells have already begun to expand poleward in both hemispheres.
“The Hadley Cells are predicted to expand poleward in both hemispheres, and observational evidence indicates this has already begun to occur [7,8].”
From Anticipated Effects of Climate Change on Coastal Upwelling Ecosystems (2015) · cites this paper as [7]
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Self-citationOgutu, J. O., Bartzke, G. S., Mukhopadhyay, S., Dublin, H. T., Senteu, J. S., Gikungu, D., Obara, I., & Piepho, H.-P. (2024) · PLOS Climate · doi:10.1371/journal.pclm.0000388 · Cited by 12 · see citing works
- Authors
- Lu, J., Vecchi, G. A., & Reichler, T.
- Affiliations
- NSF National Center for Atmospheric Research (US)
- National Oceanic and Atmospheric Administration (US)
- University of Utah (US)
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 2007-03
- Volume
- 34
- Issue
- 6
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2170352460
- Cited by
- 1,219
- References
- 0
- Citations by year
- 2026: 38 · 2025: 67 · 2024: 85 · 2023: 67 · 2022: 66 · 2021: 71 · 2020: 69 · 2019: 70 · 2018: 82 · 2017: 68 · 2016: 76 · 2015: 74 · 2014: 72 · 2013: 71 · 2012: 80
- FWCI
- 30.82
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Geophysical Research Letters (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Atmospheric Ozone and Climate
- Keywords
- Hadley circulation, poleward expansion, global warming, subtropical dry zones, baroclinic instability, static stability, climate change
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