Energy spectrum proportional to the squared phase speed of Rossby modes in the general circulation of the atmosphere

Details Energy spectrum proportional to the squared phase speed of Rossby modes in the general circulation of the atmosphere Energy spectrum proportional to the squared phase speed of Rossby modes in the general circulation of the atmosphere

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3113109t&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 13, CiteID L13109

Physics

Geophysics

Meteorology And Atmospheric Dynamics: General Circulation, Meteorology And Atmospheric Dynamics: Theoretical Modeling, Meteorology And Atmospheric Dynamics: Turbulence, Meteorology And Atmospheric Dynamics: Waves And Tides, Mathematical Geophysics: Nonlinear Dynamics

Scientific paper

In this study, energy spectrum of the large-scale atmospheric motions is examined in the framework of the 3D normal mode decomposition. The horizontal scale of disturbance is measured by the phase speed of a Rossby mode c. According to the analysis result for the barotropic component of the atmosphere, we obtain a characteristic energy spectrum with distinct slopes for the turbulence and wave regimes separated by the spherical Rhines speed. In order to explain the observational finding that the energy spectrum is proportional to c2, we put forward a hypothesis based on the criterion of Rossby wave breaking such that the local meridional gradient of potential vorticity becomes negative, ∂q/∂y < 0, somewhere in the domain. With a constant m describing a total mass of the atmosphere for unit area, we have shown that the barotropic energy spectrum of the general circulation E can be represented as E = mc2.

Affiliated with

Also associated with

No associations

Rating

Energy spectrum proportional to the squared phase speed of Rossby modes in the general circulation of the atmosphere does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Energy spectrum proportional to the squared phase speed of Rossby modes in the general circulation of the atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy spectrum proportional to the squared phase speed of Rossby modes in the general circulation of the atmosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1009845