Gravity waves around the subtropical jet of the southern winter in an atmospheric general circulation model

Details Gravity waves around the subtropical jet of the southern winter in an atmospheric general circulation model Gravity waves around the subtropical jet of the southern winter in an atmospheric general circulation model

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3122109k&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 22, CiteID L22109

Physics

11

Atmospheric Composition And Structure: Middle Atmosphere-Energy Deposition, Meteorology And Atmospheric Dynamics: Middle Atmosphere Dynamics (0341, 0342), Meteorology And Atmospheric Dynamics: Numerical Modeling And Data Assimilation, Meteorology And Atmospheric Dynamics: General Circulation, Meteorology And Atmospheric Dynamics: Stratosphere/Troposphere Interactions

Scientific paper

Gravity wave (GW) activities around the subtropical jet of the Southern winter (June) are analyzed using Atmospheric General Circulation Model outputs of T106L60, in order to clarify roles of GWs in maintaining the zonal mean zonal wind. Dominant GWs are characterized with periods of 10-24 hours relative to the ground, and with horizontal and vertical wavelengths of about 600-700 km and 2.2-4.4 km, respectively. These GWs propagate both upward and downward from the jet, and westward relative to the mean zonal wind. Most of the upward propagating waves do not reach the upper stratosphere due to negative vertical wind shear of the zonal wind in the lower stratosphere. Dominant upward fluxes of easterly momentum due to the non-stationary GWs extend zonally along 30°S above the jet. Remarkable EP-flux convergence due mostly to these GWs is seen around 100 hPa at 30°S, and explains up to 30% of the total EP-flux convergence.

Affiliated with

Also associated with

No associations

Rating

Gravity waves around the subtropical jet of the southern winter in an atmospheric general circulation model 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 Gravity waves around the subtropical jet of the southern winter in an atmospheric general circulation model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravity waves around the subtropical jet of the southern winter in an atmospheric general circulation model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1762562