Physics
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsa51a0504f&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #SA51A-0504
Physics
0350 Pressure, Density, And Temperature, 3360 Remote Sensing, 3384 Waves And Tides
Scientific paper
Investigating the diurnal temperature structure of the mesopause region (80--105 km) requires continuous measurements over complete 24-h cycles. The Leibniz-Institute of Atmospheric Physics operates two potassium temperature lidars which have been upgrade since 2000 for daytime observations. Measurements have been carried out at various locations at low (28oN), mid (54oN) and high latitudes (78oN). Decomposition of the serial temperature profiles into diurnal and higher harmonics allows the determination of tidal amplitudes and phases. Regularly, dominate semi-diurnal components with amplitudes of 10 K and more are observed. Single campaigns with continuous lidar measurements of more than 100 hours provide a reliable data base to study the influence of gravity and planetary waves on the mesopause temperature structure.
Fricke-Begemann Cord
Höffner Josef
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