The Library
Triple cascade behavior in quasigeostrophic and drift turbulence and generation of zonal jets
Tools
Nazarenko, Sergey and Quinn, Brenda E. (2009) Triple cascade behavior in quasigeostrophic and drift turbulence and generation of zonal jets. Physical Review Letters, Vol.103 (No.11). Article: 118501. doi:10.1103/PhysRevLett.103.118501 ISSN 0031-9007.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.103.118501
Abstract
We study quasigeostrophic (QG) and plasma drift turbulence within the Charney-Hasegawa-Mima (CHM) model. We focus on the zonostrophy, an extra invariant in the CHM model, and on its role in the formation of zonal jets. We use a generalized Fjortoft argument for the energy, enstrophy, and zonostrophy and show that they cascade anisotropically into nonintersecting sectors in k space with the energy cascading towards large zonal scales. Using direct numerical simulations of the CHM equation, we show that zonostrophy is well conserved, and the three invariants cascade as predicted by the Fjortoft argument.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 11 September 2009 | ||||
Dates: |
|
||||
Volume: | Vol.103 | ||||
Number: | No.11 | ||||
Number of Pages: | 4 | ||||
Page Range: | Article: 118501 | ||||
DOI: | 10.1103/PhysRevLett.103.118501 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Data sourced from Thomson Reuters' Web of Knowledge
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |