Observations of the structure and vertical transport of the polar upper ionosphere with the EISCAT VHF radar. I - Is EISCAT able to determine O(+) and H(+) polar wind characteristic? A simulation study

Details Observations of the structure and vertical transport of the polar upper ionosphere with the EISCAT VHF radar. I - Is EISCAT able to determine O(+) and H(+) polar wind characteristic? A simulation study Observations of the structure and vertical transport of the polar upper ionosphere with the EISCAT VHF radar. I - Is EISCAT able to determine O(+) and H(+) polar wind characteristic? A simulation study

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992angeo..10..367b&link_type=abstract

Annales Geophysicae (ISSN 0992-7689), vol. 10, no. 6, June 1992, p. 367-374. Research supported by CNRS.

Physics

16

Earth Ionosphere, Eiscat Radar System (Europe), Hydrogen Ions, Oxygen Ions, Polar Regions, Vertical Motion, Atmospheric Models, Flow Velocity, Ionospheric Ion Density

Scientific paper

A method presented by Wu et al. (1992) for computing the H(+) vertical velocity from the main ionospheric parameters measured by the EISCAT VHF radar is tested in a fully controlled sequence which consists of generating an ideal ionospheric model by solving the coupled continuity and momentum equations for a two-ion plasma (O(+) and H(+)). Synthetic autocorrelation functions are generated from this model with the radar characteristics and used as actual measurements to compute the H(+) vertical velocities. Results of these simulations are shown and discussed for three cases of typical and low SNR and for low and increased mixing ratios. In most cases general agreement is found between computed H(+) velocities and generic ones with the altitude range considered, i.e., 200-1000 km. The method is shown to be reliable.

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