Preprints
https://doi.org/10.5194/npg-2020-43
https://doi.org/10.5194/npg-2020-43
12 Nov 2020
 | 12 Nov 2020
Status: this preprint was under review for the journal NPG but the revision was not accepted.

The Effect of Quadric Shear Zonal Flows and Beta on the Downstream Development of Unstable Baroclinic Waves

Yu Ying Yang, Cheng Zhen Guo, Hong Xin Zhang, and Jian Song

Abstract. In this paper, the influence of quadric shear basic Zonal flows and β on the downstream development of unstable chaotic baroclinic waves is studied from the two-layer model in wide channel controlled by quasi geostrophic potential vorticity equation. Through the obtained Lorentz equation, we focused on the influence of the quadric shear zonal flow (the second derivative of the basic zonal flow is constant) on the downstream development of baroclinic waves. In the absence of zonal shear flow, chaotic behavior along feature points would occur, and the amplitude would change rapidly from one feature to another, that is, it would change very quickly in space. When zonal shear flow is introduced, it will smooth the solution of the equation and reduce the instability, and with the increase of zonal shear flow, the instability in space will increase gradually. So the quadric shear zonal flow has great influence on the stability in space.

Yu Ying Yang, Cheng Zhen Guo, Hong Xin Zhang, and Jian Song
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Yu Ying Yang, Cheng Zhen Guo, Hong Xin Zhang, and Jian Song
Yu Ying Yang, Cheng Zhen Guo, Hong Xin Zhang, and Jian Song

Viewed

Total article views: 1,062 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
910 126 26 1,062 26 28
  • HTML: 910
  • PDF: 126
  • XML: 26
  • Total: 1,062
  • BibTeX: 26
  • EndNote: 28
Views and downloads (calculated since 12 Nov 2020)
Cumulative views and downloads (calculated since 12 Nov 2020)

Viewed (geographical distribution)

Total article views: 962 (including HTML, PDF, and XML) Thereof 960 with geography defined and 2 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 28 Mar 2024
Download
Short summary
The influence of quadric shear basic Zonal flows and beta on the downstream development of unstable chaotic baroclinic waves is studied from the two-layer model in wide channel controlled by quasi geostrophic potential vorticity equation. Through the obtained Lorentz equation, we focused on the influence of the quadric shear zonal flow on the downstream development of baroclinic waves, the quadric shear zonal flow has great influence on the stability in space.