Mesospheric planetary wave activity inferred from AIM-CIPS and TIMED-SABER for the northern summer 2007 PMC season

Details Mesospheric planetary wave activity inferred from AIM-CIPS and TIMED-SABER for the northern summer 2007 PMC season Mesospheric planetary wave activity inferred from AIM-CIPS and TIMED-SABER for the northern summer 2007 PMC season

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa14a..08m&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA14A-08

Physics

0300 Atmospheric Composition And Structure, 0340 Middle Atmosphere: Composition And Chemistry, 0394 Instruments And Techniques, 3332 Mesospheric Dynamics

Scientific paper

The Cloud Imaging and Particle Size (CIPS) instrument on the Aeronomy of Ice in the Mesosphere (AIM) satellite observed Polar Mesospheric Clouds (PMC) during the 2007 Northern hemisphere (NH) summer. The CIPS instrument provides detailed images of PMC occurrence and brightness. Daily global composites of the cloud images show an apparent clockwise zonal motion of the clouds indicating forcing from planetary waves. Planetary wave activity has been detected in previous coincident PMC/temperature observations including a 5-day and 2-day planetary wave in SNOE PMC data that strongly correlates with the same wave features in SABER temperature data. This indicates temperature as an important forcing mechanism in global variability of PMCs. Observations of the seasonal morphology of CIPS PMC occurrence and brightness correlate well with the day-to- day zonal mean changes in SABER temperature. We will present a first look at the observed planetary wave variance in CIPS observations of PMCs with a comparison to the planetary wave activity in the SABER 2007 temperature data.

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