Momentum balance and gravity wave forcing in the mesosphere and lower thermosphere

Details Momentum balance and gravity wave forcing in the mesosphere and lower thermosphere Momentum balance and gravity wave forcing in the mesosphere and lower thermosphere

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3607805l&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 7, CiteID L07805

Physics

1

Atmospheric Processes: Mesospheric Dynamics, Atmospheric Processes: Acoustic-Gravity Waves, Atmospheric Processes: Middle Atmosphere Dynamics (0341, 0342), Atmospheric Processes: Theoretical Modeling

Scientific paper

Gravity wave forcing (GWF), which is the primary driver of the mesospheric and lower thermospheric (MLT) circulation, is difficult to measure directly. In this work, the zonal mean GWF at extratropical MLT is deduced from measured winds using momentum balance. With the GWF dominating in the MLT, the zonally averaged zonal momentum equation can be simplified to a balance relation between the GWF and the Coriolis force in the extratropics. The meridional advection of zonal momentum makes a higher order contribution to the momentum balance, especially at places where the GWF maximizes. This method is tested with WACCM3 model and preliminary results are obtained from wind measurements by CSU Na lidar and TIMED/TIDI.

Affiliated with

Also associated with

No associations

Rating

Momentum balance and gravity wave forcing in the mesosphere and lower thermosphere 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 Momentum balance and gravity wave forcing in the mesosphere and lower thermosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Momentum balance and gravity wave forcing in the mesosphere and lower thermosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1521649