Radio and meteor science outcomes from comparisons of meteor radar observations at AMISR poker flat, sondrestrom, and arecibo

J. D. Mathews, S. J. Briczinski, D. D. Meisel, C. J. Heinselman

    Research output: Chapter in Book/Report/Conference proceedingChapter

    3 Scopus citations

    Abstract

    Radio science and meteor physics issues regarding meteor head-echo observations with high power, large aperture (HPLA) radars, include the frequency and latitude dependency of the observed meteor altitude, speed, and deceleration distributions. We address these issues via the first ever use and analysis of meteor observations from the Poker Flat AMISR (PFISR: 449.3 MHz), Sondrestrom (SRF: 1,290 MHz), and Arecibo (AO: 430 MHz) radars. The PFISR and SRF radars are located near the Arctic Circle while AO is in the tropics. The meteors observed at each radar were detected and analyzed using the same automated FFT periodic micrometeor searching algorithm. Meteor parameters (event altitude, velocity, and deceleration distributions) from all three facilities are compared revealing a clearly defined altitude ceiling effect in the 1,290 MHz results relative to the 430/449.3 MHz results. This effect is even more striking in that the Arecibo and PFISR distributions are similar even though the two radars are over 2,000 times different in sensitivity and at very different latitudes, thus providing the first statistical evidence that HPLA meteor radar observations are dominated by the incident wavelength, regardless of the other radar parameters. We also offer insights into the meteoroid fragmentation and terminal process.

    Original languageEnglish (US)
    Title of host publicationAdvances in Meteoroid and Meteor Science
    PublisherSpringer New York
    Pages365-372
    Number of pages8
    ISBN (Print)9780387784182
    DOIs
    StatePublished - Dec 1 2008

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)

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  • Cite this

    Mathews, J. D., Briczinski, S. J., Meisel, D. D., & Heinselman, C. J. (2008). Radio and meteor science outcomes from comparisons of meteor radar observations at AMISR poker flat, sondrestrom, and arecibo. In Advances in Meteoroid and Meteor Science (pp. 365-372). Springer New York. https://doi.org/10.1007/978-0-387-78419-9_51