Lidar observations of atmospheric dynamics on both sides of the Scandinavian mountains

Details Lidar observations of atmospheric dynamics on both sides of the Scandinavian mountains Lidar observations of atmospheric dynamics on both sides of the Scandinavian mountains

Aug 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.530..389b&link_type=abstract

In: 16th ESA Symposium on European Rocket and Balloon Programmes and Related Research, 2 - 5 June 2003, Sankt Gallen, Switzerlan

Physics

Earth Atmosphere: Physics, Earth Atmosphere: Chemistry, Atmospheric Dynamics, Lidar

Scientific paper

Atmospheric waves have been the subject of intense research for several decades because of their extensive effects on atmospheric circulation and temperature structure on large as well as on small scales. The U. Bonn Lidar at the Esrange and the ALOMAR RMR Lidar are located in Northern Scandinavia at a distance of 250 km on either side of the Scandinavian mountain ridge. During two field campaigns in January/February 2002 and 2003 simultaneous measurements of temperature profiles at both stations could be accomplished. The measurements show generally low wave activity during winter 2002, but stronger wave activity during the measurement period in 2003. Analyses of vertical wavelength spectra and gravity wave potential energy density per volume reveal this clearly. Comparisons with ECMWF T106 wind data explain the observations in the context of the background wind field. While both winters show clear differences in the wave structure, large differences between both stations were not visible, hence the influence of the Scandinavian mountain ridge was negligible in our measurements during the observation periods.

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