Characteristics of gravity waves in the summer polar mesosphere and their dynamical effects on polar mesospheric clouds (Invited)

Details Characteristics of gravity waves in the summer polar mesosphere and their dynamical effects on polar mesospheric clouds (Invited) Characteristics of gravity waves in the summer polar mesosphere and their dynamical effects on polar mesospheric clouds (Invited)

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa14a..04t&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SA14A-04

Physics

[3311] Atmospheric Processes / Clouds And Aerosols, [3332] Atmospheric Processes / Mesospheric Dynamics, [3384] Atmospheric Processes / Acoustic-Gravity Waves

Scientific paper

The Aeronomy of Ice in the Mesosphere (AIM) satellite was designed specifically to investigate the nature and evolution of Polar Mesospheric Clouds (PMCs) which form near the high-latitude summer mesopause region. Of key importance is the investigation of the role of atmospheric dynamics on PMC formation and variability. In particular, gravity waves are known to strongly influence the dynamics of the upper atmospheric environment in which the PMCs nucleate and grow, but measurements of their characteristics in the summer polar mesosphere are few. The Cloud Imaging and Particle Size experiment (CIPS) on AIM is a four camera, wide-field (120° x 80°) UV imager capable of imaging PMC morphology and measuring gravity waves in exceptional detail, and over a broad range of scale sizes. Seven seasons of PMCs have now been imaged by CIPS since AIM was launched (April, 2007) providing a rich data base for investigating the characteristics and impact of gravity waves on the PMC morphology with high spatial resolution (5km). In this talk, we will compare recent gravity wave results using CIPS PMC data over the northern and southern hemispheric polar regions.

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