EOS MLS Observations of Recent Two-Day Wave events

Details EOS MLS Observations of Recent Two-Day Wave events EOS MLS Observations of Recent Two-Day Wave events

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsa53a1152l&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SA53A-1152

Computer Science

Sound

0340 Middle Atmosphere: Composition And Chemistry, 3332 Mesospheric Dynamics, 3389 Tides And Planetary Waves

Scientific paper

Episodes of two-day wave are observed using the recently launched Microwave Limb Sounder (MLS) aboard NASA's Earth Observing System Aura mission. Wave-induced disturbances are identified in temperature, water vapor, carbon monoxide, and MLS line-of-sight wind (a special MLS product, now under development). During January-March 2005, temperature and wind amplitudes as large as 9 K and 50 m/s are observed near 90 km. The wave disturbance is initially confined in the mid- to low summer latitudes where the climatological summer easterly jet exhibits strong shear. The wave then develops features akin to the third Rossby-gravity global normal mode, with a weak temperature disturbance in the winter hemisphere (anti-symmetric about the equator) and wind disturbance over the equator. The two-day wave events during June-August 2005 will also be presented.

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