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Cited by 258

The DOI matches its Crossref record; 134 of the 134 references it cites were found in a registry or an index.

The expanding tropics: a critical assessment of the observational and modeling studies

Lucas, Christopher, Timbal, Bertrand, Nguyen, Hanh·2014·WIREs Climate Change
DOI 10.1002/wcc.251
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Abstract

This review provides comprehensive coverage of the tropical expansion literature to date. The primary focus is on the annual‐ and zonal‐mean behavior of the phenomenon. An idealized model that identifies the mean meridional circulation as a hemisphere‐wide structure with significant tropical–extratropical interaction is introduced as background for the understanding of the expansion and the methodologies used for detection. A variety of metrics from different data sources have been used to identify an expansion of the global tropics since 1979 by 1°–3° latitude in each hemisphere, an average trend of approximately 0.5°–1.0° decade−1. The symmetry of this expansion—whether Northern and Southern hemispheres are expanding at the same rate—is unclear. Limitations of observational datasets, including reanalyses, prevent a more precise determination at this time. General circulation models are able to qualitatively reproduce this expansion, but generally underestimate its magnitude. Multiple factors have been identified as potential drivers of the expansion, including increasing greenhouses gases, stratospheric ozone depletion, and anthropogenic aerosols. No single factor by itself appears to explain the full expansion, perhaps a shortcoming of the models or experiment design. It may be that some combination of these forcings is producing the change, but the relative contribution of each forcing to the expansion is currently unknown. The key issues remaining to be resolved are briefly summarized at the end. WIREs Clim Change 2014, 5:89–112. doi: 10.1002/wcc.251 This article is categorized under: Paleoclimates and Current Trends > Modern Climate Change Climate Models and Modeling > Knowledge Generation with Models

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Metadata

Authors
Lucas, C., Timbal, B., & Nguyen, H.
Venue
WIREs Climate Change
Publisher
Wiley
Published
2013-09-30
Volume
5
Issue
1
Pages
89-112
ISSN
  • 1757-7780 (ISSN-L)
  • 1757-7799
DOI
10.1002/wcc.251
OpenAlex
W1576355354
Cited by
258
References
134
FWCI
11.58
Type
journal article
Language
en
Open access
closed

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