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Cause of the widening of the tropical belt since 1958
Abstract
Previous studies have shown that the width of the tropical belt has been increasing since at least the late 1970s based on a variety of metrics. One such metric, the frequency of occurrence of a high‐altitude tropopause characteristic of the tropics, is used here to show that the observed widening of the tropics can be accurately replicated by an atmospheric general circulation model forced by the observed evolution of global SST and sea ice distributions as well as the direct radiative effects from both natural and anthropogenic sources. Contrasting this simulation with one forced by the observed SST and sea ice distributions alone reveals that the widening trend can be attributed entirely to direct radiative forcing, in particular those related to greenhouse gases and stratospheric ozone depletion. SST forcing causes no significant change in the width of the tropics, and even a contraction in some seasons.
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Citations
Cites
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
Self-citation
Cited by
Allen, C. D., Macalady, A. K., Chenchouni, H., Bachelet, D., McDowell, N., Vennetier, M., Kitzberger, T., Rigling, A., Breshears, D. D., Hogg, E. H. (., et al. (2010) · Forest Ecology and Management · doi:10.1016/j.foreco.2009.09.001 · Cited by 7,763
Terrestrial and Inland Water Systems
(2015) · Climate Change 2014 Impacts, Adaptation, and Vulnerability · doi:10.1017/cbo9781107415379.009 · Cited by 293
The expanding tropics: a critical assessment of the observational and modeling studies
Lucas, C., Timbal, B., & Nguyen, H. (2014) · WIREs Climate Change · doi:10.1002/wcc.251 · Cited by 258
Allen, R. J., Sherwood, S. C., Norris, J. R., & Zender, C. S. (2012) · Nature · doi:10.1038/nature11097 · Cited by 256
Southward shift of the northern tropical belt from 1945 to 1980
Brönnimann, S., Fischer, A. M., Rozanov, E., Poli, P., Compo, G. P., & Sardeshmukh, P. D. (2015) · Nature Geoscience · doi:10.1038/ngeo2568 · Cited by 58
Metadata
- Authors
- Lu, J., Deser, C., & Reichler, T.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 2009-02
- Volume
- 36
- Issue
- 3
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2050651382
- Cited by
- 165
- References
- 1
- FWCI
- 11.12
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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