Wavenumber spectra of horizontal wind and temperature measured with WINDII, Part II: diffusive effect on spectral formation

Details Wavenumber spectra of horizontal wind and temperature measured with WINDII, Part II: diffusive effect on spectral formation Wavenumber spectra of horizontal wind and temperature measured with WINDII, Part II: diffusive effect on spectral formation

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jastp..62..981w&link_type=abstract

Journal of Atmospheric and Solar-Terrestrial Physics, Volume 62, Issue 11, p. 981-991.

Physics

3

Scientific paper

Vertical and horizontal wavenumber spectra of horizontal wind and temperature observed with WINDII are used to examine the effect of diffusion process on the spectral evolution. At small wavenumbers, the spectral slope is generally found to be close to zero, due to restriction of diffusion process. In order to better describe the situation, the frequency-dependent diffusivity used in the diffusive model (Gardner, 1994, Journal of Geophysical Research 99, 20,601-20,622) is generalized to include a wavenumber dependence. The saturated-cascade model (Dewan, 1991; 1994, Geophysical Research Letters 21, 817-820) are transformed into a diffusive form by assuming the wave energy to be dissipated through diffusion. The observed spectra are compared with the diffusive and cascade models, as well as the non-diffusive model (Gardner et al., 1993a, Journal of Geophysical Research 98, 1035-1049). Our results show that diffusion process plays an important role in maintaining the shapes and amplitudes of vertical wavenumber spectra, but less significant for horizontal wavenumber spectra at the observed large wavelengths.

Affiliated with

Also associated with

No associations

Rating

Wavenumber spectra of horizontal wind and temperature measured with WINDII, Part II: diffusive effect on spectral formation 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 Wavenumber spectra of horizontal wind and temperature measured with WINDII, Part II: diffusive effect on spectral formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavenumber spectra of horizontal wind and temperature measured with WINDII, Part II: diffusive effect on spectral formation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1721890