Affiliation:
1. Institute of Solar Terrestrial Physics SB RAS
Abstract
The paper considers the implementation of algorithms for automatic search for signals scattered by meteor trails according to EKB ISTP SB RAS radar data. In general, the algorithm is similar to the algorithms adopted in specialized meteor systems. The algorithm is divided into two stages: detecting a meteor echo and determining its parameters. We show that on the day of the maximum Geminid shower, December 13, 2016, the scattered signals detected by the algorithm are foreshortening and correspond to scattering by irregularities extended in the direction of the meteor shower radiant. This confirms that the source of the signals detected by the algorithm is meteor trails. We implement an additional program for indirect trail height determination. It uses a decay time of echo and the NRLMSIS-00 atmosphere model to estimate the trail height. The dataset from 2017 to 2019 is used for further testing of the algorithm. We demonstrate a correlation in calculated Doppler velocity between the new algorithm and FitACF. We present a solution of the inverse problem of reconstructing the neutral wind velocity vector from the data obtained by the weighted least squares method. We compare calculated speeds and directions of horizontal neutral winds, obtained in the three-dimensional wind model, and the HWM-14 horizontal wind model. The algorithm allows real-time scattered signal processing and has been put into continuous operation at the EKB ISTP SB RAS radar.
Publisher
Infra-M Academic Publishing House
Reference35 articles.
1. Arnold N.F., Cook P.A., Robinson T.R., et al. Comparison of D-region Doppler drift winds measured by the SuperDARN Finland HF radar over an annual cycle using the Kiruna VHF meteor radar // Ann. Geophys. 2003. Vol. 21, no. 10. P. 2073–2082. DOI: 10.5194/angeo-21-2073-20033., Arnold N.F., Cook P.A., Robinson T.R., Lester M., Chapman P.J., Mitchell N. Comparison of D-region Doppler drift winds measured by the SuperDARN Finland HF radar over an annual cycle using the Kiruna VHF meteor radar. Ann. Geophys. 2003, vol. 21, no. 10, pp. 2073–2082. DOI: 10.5194/angeo-21-2073-20033.
2. Berngardt O.I., Voronov A.L., Grkovich K.V. Optimal signals of Golomb ruler class for spectral measurements at EKB SuperDARN radar: Theory and experiment // Radio Sci. 2015. Vol. 50, no. 6. 2014RS005589. P. 486–500. DOI: 10.1002/2014RS005589., Berngardt O.I., Voronov A.L., Grkovich K.V. Optimal signals of Golomb ruler class for spectral measurements at EKB SuperDARN radar: Theory and experiment. Radio Sci. 2015, vol. 50, no. 6, 2014RS005589, pp. 486–500. DOI: 10.1002/2014RS005589.
3. Berngardt O.I., Kurkin V.I., Zherebtsov G.A., et al. Ionospheric effects during first 2 hours after the “Chelyabinsk” meteorite impact // arXiv. 2013. arXiv: 1308.3918 [physics.geo-ph]., Baumjohann W., Treumann R.A. Basic Space Plasma Physics. London: Imperial College Press, 1996. 340 p. DOI: 10.1142/p015.
4. Briczinski S.J., Mathews J.D., Meisel D.D. Statistical and fragmentation properties of the micrometeoroid flux observed at Arecibo // J. Geophys. Res.: Space Phys. 2009. Vol. 114, no. A4. A04311. DOI: 10.1029/2009JA014054., Briczinski S.J., Mathews J.D., Meisel D.D. Statistical and fragmentation properties of the micrometeoroid flux observed at Arecibo. J. Geophys. Res.: Space Phys. 2009, vol. 114, no. A4, A04311. DOI: 10.1029/2009JA014054.
5. Campbell-Brown M.D. High resolution radiant distribution and orbits of sporadic radar meteoroids // Icarus. 2008. Vol. 196, no. 1. P. 144–163. DOI: 10.1016/j.icarus.2008.02.022., Campbell-Brown M.D. High resolution radiant distribution and orbits of sporadic radar meteoroids. Icarus. 2008, vol. 196, no. 1, pp. 144–163. DOI: 10.1016/j.icarus.2008.02.022.
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