Gravity waves in polar mesospheric clouds measured by Odin/OSIRIS since 2002

Details Gravity waves in polar mesospheric clouds measured by Odin/OSIRIS since 2002 Gravity waves in polar mesospheric clouds measured by Odin/OSIRIS since 2002

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agusmsa34a..06p&link_type=abstract

American Geophysical Union, Spring Meeting 2009, abstract #SA34A-06

Physics

0341 Middle Atmosphere: Constituent Transport And Chemistry (3334), 3332 Mesospheric Dynamics, 3360 Remote Sensing, 3384 Acoustic-Gravity Waves

Scientific paper

The Optical Spectrograph and InfraRed Imager System instrument (OSIRIS) on the limb-viewing Odin satellite observes Polar Mesospheric Clouds (PMCs) in both hemispheres since November, 2001. The orbit period of Odin is 96 minutes and the maximum latitudinal coverage in the orbit plane is between 82.2 N and 82.2 S. In this work, the longitudinal distribution of Odin/OSIRIS PMC brightness in each hemisphere during a 4-week period around the summer solstice from 2002 until 2009 is analyzed. It is found that in the southern hemisphere, the cloud brightness was consistently up to 30% lower around 250-300

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