Skip to main content
Log in

Orbital and millennial northern mid-latitude westerlies over the last glacial period

  • Published:
Climate Dynamics Aims and scope Submit manuscript

Abstract

The northern mid-latitude westerlies play an important role in the climate interactions between the low and high latitudes. Our understanding of the factors that control the latitudinal displacement of the westerlies remains incomplete due to insufficient climatic proxy. Here we present a latitudinal-shift record of the westerlies in the eastern Central Asia over the past 70,000 years, on the basis of the grain size of the loess sequence from the Tacheng basin. On millennial timescale, the variation of the reconstructed westerlies resembles that of the Greenland temperature and the Atlantic meridional overturning circulation (AMOC), indicating the role of the AMOC on the westerlies. On orbital time scale, their variation is controlled by precession and insolation. Our analyses of the LOVECLIM and CCSM3 models’ results show that the impact of insolation and AMOC on the latitudinal shift of the westerlies is through changing the latitudinal temperature and pressure gradients.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

Download references

Acknowledgements

This work was supported by funds from the National Natural Science Foundation of China (NSFC Grant no. 41702189, 41572162), and the Fonds de la Recherche Scientifique-FNRS under Grant MIS F.4529.18. Q. Z. Yin is Research Associate of the Fonds de la Recherche Scientifique-FNRS.

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Yun Li, Yougui Song or Qiuzhen Yin.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Li, Y., Song, Y., Yin, Q. et al. Orbital and millennial northern mid-latitude westerlies over the last glacial period. Clim Dyn 53, 3315–3324 (2019). https://doi.org/10.1007/s00382-019-04704-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00382-019-04704-5

Keywords

Navigation