Heating and cooling of the thermosphere by internal gravity waves

Details Heating and cooling of the thermosphere by internal gravity waves Heating and cooling of the thermosphere by internal gravity waves

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3614807y&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 14, CiteID L14807

Physics

Geophysics

9

Atmospheric Processes: Thermospheric Dynamics (0358), Mathematical Geophysics: Wave Propagation (0689, 2487, 4275, 4455, 6934), Atmospheric Processes: General Circulation (1223), Global Change: Earth System Modeling (1225), Oceanography: Physical: Internal And Inertial Waves

Scientific paper

For the first time, estimates of heating and cooling in the upper thermosphere due to dissipating and breaking gravity waves (GWs) of tropospheric origin have been obtained with a comprehensive general circulation model (GCM). A GW parameterization specifically designed for thermospheric heights has been implemented in the CMAT2 GCM covering altitudes from the tropopause to the F 2 region, and simulations for the June solstice have been performed. They reveal that the net thermal effect of GWs above the turbopause is cooling. The largest (up to -170 K d-1 in a zonally and temporally averaged sense) cooling takes place in the high latitudes of both hemispheres near 210 km. The instantaneous values of heating and cooling rates are highly variable, and reach up to 500 and -3000 K d-1 in the F 2 region, respectively. Inclusion of the GW thermal effects reduces the simulated model temperatures by up to 200 K over the summer pole and by 100 to 170 K at other latitudes near 210 km.

Affiliated with

Also associated with

No associations

Rating

Heating and cooling of the thermosphere by internal gravity waves 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 Heating and cooling of the thermosphere by internal gravity waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heating and cooling of the thermosphere by internal gravity waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1785735