Physics
Scientific paper
Aug 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.530..339l&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
Scientific paper
Spectral widths observed by narrow beam VHF/UHF Doppler radars are used to estimate turbulent energy dissipation rates. In case of broader beams, the observed spectral widths have to be corrected for the influence of beam and shear broadening using simultaneously measured horizontal winds. VanZandt et al. developed a new dual-beam width method to estimate the turbulent component of spectral width from MST radar observations without any additional assumptions and tested it successfully for the troposphere. In summer 2002 a new MF radar was put into operation at Saura on the Andoya island in Norway. The system has high flexibility in antenna beam forming allowing off-zenith beams with different beam widths. Experiments with different beam widths have been carried out with the MF radar to test the dual-beam width method at mesospheric altitudes. We compare spectral width estimates from both the single-beam width and the dual-beam width method on a case study basis.
Engler N.
Latteck Ralph
Singer Wolfgang
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