Global Occurrence Statistics of Mesospheric Inversion Layers Obtained From SABER Temperature Profiles

Details Global Occurrence Statistics of Mesospheric Inversion Layers Obtained From SABER Temperature Profiles Global Occurrence Statistics of Mesospheric Inversion Layers Obtained From SABER Temperature Profiles

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsa34a..06w&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SA34A-06

Physics

3334 Middle Atmosphere Dynamics (0341, 0342), 3360 Remote Sensing, 3384 Waves And Tides, 0310 Airglow And Aurora, 0350 Pressure, Density, And Temperature

Scientific paper

We examine the global morphology of mesospheric inversion layers (MILs) using the unprecedented temperature database derived from the SABER instrument on the TIMED satellite which so far covers the period 2002 to mid 2004. The 100 percent duty cycle of the SABER instrument allows us to get nearly global coverage of temperature profiles from 52S-83N (or 83S-52N in the opposite phase of the yaw cycle). With this data we have catalogued the occurrence and amplitude of inversion layers as a function of local time and latitude for equinox and solstice. For each season we use data from an entire yaw cycle (about 62 days) in order to cover all local times. Preliminary results show a large occurrence frequency of MILs with amplitudes of greater than 20K (at equinox) with the largest amplitudes and highest occurrence rates in the equatorial region. We correlate the occurrence of MILs and their amplitude with the expected tidal phase and amplitude and map the horizontal extent of the larger MILs.

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