Advertisement

Earth, Moon, and Planets

, Volume 102, Issue 1–4, pp 365–372 | Cite as

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
Article

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.

Keywords

Radar meteors Headechoes Meteor fragmentation Radio science 

Notes

Acknowledgments

This effort was supported under NSF Grants ATM 04-13009 and ITR/AP 04-27029 to the Pennsylvania State University. The Arecibo Observatory is part of the National Astronomy and Ionosphere Center, which is operated by Cornell University under cooperative agreement with the National Science Foundation. The Sondrestrom Research Facility and Poker Flat AMISR-32 radar are operated by SRI under cooperative agreement with the National Science Foundation.

References

  1. S.J. Briczinski, C-H. Wen, J.D. Mathews, J.F. Doherty, Q-N. Zhou, Robust voltage fitting techniques for meteor Doppler speed determination. IEEE Trans. Geosci. Remote Sens. 44, 3490–3496 (2006)CrossRefADSGoogle Scholar
  2. S. Close M. Oppenheim S. Hunt L. Dyrud, Scattering characteristics of high-resolution meteor head echoes detected at multiple frequencies. J. Geophys. Res. 107(A10), 1295 (2002) doi:  1210.1029/2002JA009253 Google Scholar
  3. S. Hunt, S. Close, M. Oppenheim, L. Dyrud, Two-frequency meteor observations using the Advanced Research Project Agency Long Range Tracking and Instrumentation Radar (ALTAIR), in Proceedings of the Meteoroids 2001 Conference, vol. ESA SP-495, (Swedish Institute of Space Physics, Kiruna, Sweden, 2001) pp. 451–455Google Scholar
  4. D. Janches, D.D. Meisel, J.D. Mathews, Orbital properties of the Arecibo micrometeoroids at Earth intersection. Icarus. 150, 206–218 (2001)CrossRefADSGoogle Scholar
  5. D. Janches, J.L. Chau, Observed diurnal and seasonal behavior of the micrometeor flux using the Arecibo and Jicamarca radars. J. Atmosph. Solar-Terrestrial Phys. 67, 1196–1210 (2005)CrossRefADSGoogle Scholar
  6. A. Malhotra, J.V. Urbina, J.D. Mathews, A radio science perspective on long duration meteor trails. J. Geophys. Res. (in press, 2007) doi:  10.1029/2007JA012576
  7. J.D. Mathews, D.D. Meisel, K.P. Hunter, V.S. Getman, Q-H. Zhou, Very high resolution studies of micrometeors using the Arecibo 430 MHz radar. Icarus. 126(1), 157–169 (1997)CrossRefADSGoogle Scholar
  8. J.D. Mathews, D. Janches, D.D. Meisel, Q-H. Zhou, The micrometeoroid mass flux into the upper atmosphere: Arecibo results and a comparison with prior estimates. Geophys. Res. Lett. 28, 1929–1932 (2001)CrossRefADSGoogle Scholar
  9. J.D. Mathews, C.H. Wen, J.F. Doherty, S.J. Briczinski, D. Janches, D.D. Meisel, An update on UHF radar meteor observations and associated signal processing techniques at Arecibo Observatory. J Atmosph. Solar-Terrestrial Phys. 65, 1139–1149 (2003)CrossRefADSGoogle Scholar
  10. J.D. Mathews, Radio science issues surrounding HF/VHF/UHF radar meteor studies. J. Atmosph. Solar-Terrestrial Phys. 66, 285–299 (2004)CrossRefADSMathSciNetGoogle Scholar
  11. A. Pellinen-Wannberg, The EISCAT meteor-head method—a review and recent observations. Atmosph. Chem. Phys. 4, 649–655 (2004)ADSGoogle Scholar
  12. A. Westman, G. Wannberg, A. Pellinen-Wannberg, Meteor head echo altitude distributions and the height cutoff effect studied with the EISCAT HPLA UHF and VHF radars. Ann. Geophys. 22, 1575–1584 (2004)ADSCrossRefGoogle Scholar
  13. Q-H. Zhou, P. Perillat, J.Y.N. Cho, J.D. Mathews, Simultaneous meteor echo observations by large aperture VHF and UHF radars. Radio Sci. 33, 1641–1654 (1998)CrossRefADSGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • J. D. Mathews
    • 1
  • S. J. Briczinski
    • 1
  • D. D. Meisel
    • 2
  • C. J. Heinselman
    • 3
  1. 1.Communications and Space Sciences Laboratory (CSSL)The Pennsylvania State UniversityUniversity ParkUSA
  2. 2.CSSL and Department of Physics and AstronomySUNY-GeneseoGeneseoUSA
  3. 3.SRI InternationalMenlo ParkUSA

Personalised recommendations