The DOI matches its Crossref record.
Phase speed spectra and the recent poleward shift of Southern Hemisphere surface westerlies
Abstract
The poleward shift of the Southern Hemisphere surface westerlies in recent decades is examined in reanalysis data and in the output of coupled atmosphere‐ocean and uncoupled atmospheric models. The space‐time spectra of the eddy momentum fluxes in the upper troposphere reveal a trend that marks an increase in the eastward phase speed of the tropospheric eddies accompanied by a poleward displacement of the region of wave breaking in the subtropics. A dynamical mechanism is suggested that may help explain the connections among the lower stratospheric wind anomalies, the increased eastward propagation of tropospheric eddies and the poleward shift of the tropospheric circulation.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Response of the Zonal Mean Atmospheric Circulation to El Niño versus Global Warming
Lu, J., Chen, G., & Frierson, D. M. W. (2008) · Journal of Climate · doi:10.1175/2008jcli2200.1 · Cited by 484
Self-citationRevisiting the evidence linking Arctic amplification to extreme weather in midlatitudes
Barnes, E. A. (2013) · Geophysical Research Letters · doi:10.1002/grl.50880 · Cited by 416
Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment
Son, S. ‐., Gerber, E. P., Perlwitz, J., Polvani, L. M., Gillett, N. P., Seo, K. ‐., Eyring, V., Shepherd, T. G., Waugh, D., Akiyoshi, H., et al. (2010) · Journal of Geophysical Research: Atmospheres · doi:10.1029/2010jd014271 · Cited by 340
Long‐term ozone changes and associated climate impacts in CMIP5 simulations
Eyring, V., Arblaster, J. M., Cionni, I., Sedláček, J., Perlwitz, J., Young, P. J., Bekki, S., Bergmann, D., Cameron‐Smith, P., Collins, W. J., et al. (2013) · Journal of Geophysical Research: Atmospheres · doi:10.1002/jgrd.50316 · Cited by 324
Response of the large‐scale structure of the atmosphere to global warming
Vallis, G. K., Zurita‐Gotor, P., Cairns, C., & Kidston, J. (2015) · Quarterly Journal of the Royal Meteorological Society · doi:10.1002/qj.2456 · Cited by 306
Metadata
- Authors
- Chen, G., & Held, I. M.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 2007-11
- Volume
- 34
- Issue
- 21
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W1982853867
- Cited by
- 211
- References
- 0
- FWCI
- 9.64
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Phase speed spectra and the recent poleward shift of Southern Hemisphere surface westerlies. https://app.cochat.ai/papers/10.1029/2007gl031200
- The paper
- Chen, G., & Held, I. M. (2007). Phase speed spectra and the recent poleward shift of Southern Hemisphere surface westerlies. Geophysical Research Letters. https://doi.org/10.1029/2007gl031200
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
