Simultaneous Lidar Observations of Mesospheric Na and Fe Layers at Boulder, Colorado (40N, 105W) in 2010

Details Simultaneous Lidar Observations of Mesospheric Na and Fe Layers at Boulder, Colorado (40N, 105W) in 2010 Simultaneous Lidar Observations of Mesospheric Na and Fe Layers at Boulder, Colorado (40N, 105W) in 2010

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa43a1738h&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SA43A-1738

Other

[0300] Atmospheric Composition And Structure, [0340] Atmospheric Composition And Structure / Middle Atmosphere: Composition And Chemistry, [3334] Atmospheric Processes / Middle Atmosphere Dynamics, [3360] Atmospheric Processes / Remote Sensing

Scientific paper

A three-frequency Na resonance fluorescence Doppler lidar and an Fe Boltzmann temperature lidar have been constructed and upgraded, respectively, at Boulder, Colorado (40N, 105W) in summer 2010. They are used to observe the Na and Fe layers in the mesosphere and lower thermosphere (MLT) region since June, including many nights of simultaneous and common-volume measurements. We will characterize the observed metal layers of their densities, heights, and widths. More importantly, we will compare and discuss the distinctive features, boundaries and structures, of the simultaneously observed Na and Fe layers. A special night on 11 August 2010 with abnormally high Na and Fe densities, about two times than other days, will be examined in details. Although there have been a few locations reported simultaneous Na and Fe observations, this is one of the first observations with concurrent temperature measurements. Therefore, these datasets provide a rare opportunity to study chemistry and temperatures in the upper mesosphere and lower thermosphere.

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