scholarly journals Observations of meteor showers with the meteor radar of KFU

2021 ◽  
Vol 51 (3) ◽  
Author(s):  
S. Kalabanov ◽  
D. Korotyshkin ◽  
R. Ishmuratov ◽  
O. Sherstykov ◽  
F. Valiullin
Keyword(s):  
Meteor Radar ◽  
Meteor Showers

scholarly journals Enhanced sporadic <i>E</i> occurrence rates during the Geminid meteor showers 2006–2010

2013 ◽  
Vol 11 ◽  
pp. 313-318 ◽  
Author(s):  
C. Jacobi ◽  
C. Arras ◽  
J. Wickert
Keyword(s):  
Northern Hemisphere ◽  
Strong Correlation ◽  
Wind Shear ◽  
Radio Occultation ◽  
Semidiurnal Tide ◽  
Metallic Ions ◽  
Meteor Radar ◽  
Meteor Showers ◽  
Short Delay ◽  
Sporadic E

Abstract. Northern Hemisphere midlatitude sporadic E (Es) layer occurrence rates derived from FORMOSAT-3/COSMIC GPS radio occultation (RO) measurements during the Geminid meteor showers 2006–2010 are compared with meteor rates obtained with the Collm (51.3° N, 13.0° E) VHF meteor radar. In most years, Es rates increase after the shower, with a short delay of few days. This indicates a possible link between meteor influx and the production of metallic ions that may form Es. There is an indication that the increase propagates downward, probably partly caused by tidal wind shear. However, the correlation between Es rates and meteor flux varies from year to year. A strong correlation is found especially in 2009, while in 2010 Es rates even decrease during the shower. This indicates that additional processes significantly influence Es occurrence also during meteor showers. A possible effect of the semidiurnal tide is found. During years with weaker tidal wind shear, the correlation between Es and meteor rates is even weaker.

scholarly journals All-sky interferometric meteor radar meteoroid speed estimation using the Fresnel transform

2007 ◽  
Vol 25 (2) ◽  
pp. 385-398 ◽  
Author(s):  
D. A. Holdsworth ◽  
W. G. Elford ◽  
R. A. Vincent ◽  
I. M. Reid ◽  
D. J. Murphy ◽  
...  
Keyword(s):  
High Speed ◽  
Pulse Repetition ◽  
Speed Estimation ◽  
Meteor Radar ◽  
Meteor Showers ◽  
Temporal Sampling ◽  
Upper Limit ◽  
Alternative Techniques ◽  
Fresnel Transform ◽  
Good Agreement

Abstract. Fresnel transform meteor speed estimation is investigated. A spectral based technique is developed allowing the transform to be applied at low temporal sampling rates. Simulations are used to compare meteoroid speeds determined using the Fresnel transform and alternative techniques, confirming that the Fresnel transform produces the most accurate meteoroid speed estimates for high effective pulse repetition frequencies (PRFs). The Fresnel transform is applied to high effective PRF data collected during Leonid meteor showers, producing speed estimates in good agreement with the theoretical pre-atmospheric speed of the 71 kms−1. Further simulations for the standard low effective PRF sampling parameters used for Buckland Park meteor radar (BPMR) observations suggests that the Fresnel transform can successfully estimate meteor speeds up to 80 kms−1. Fresnel transform speed estimation is applied using the BPMR, producing speed distributions similar to those obtained in previous studies. The technique is also applied to data collected using the BPMR sampling parameters during Southern delta-Aquarid and Geminid meteor showers, producing speeds in very good agreement with the theoretical pre-atmospheric speeds of these showers (41 kms−1 and 35 kms−1, respectively). However, application of the Fresnel transform to high speed showers suggests that the practical upper limit for accurate speed estimation using the BPMR sampling parameters is around 50 kms−1. This limit allows speed accurate estimates to be made for about 70% of known meteor showers, and around 70% of sporadic echoes.

Meteor showers - Modeled and measured effects in the atmosphere

1999 ◽  
Author(s):  
J. Grebowsky ◽  
W. Pesnell
Keyword(s):  
Meteor Showers

Measuring meridional mesospheric winds with the AMOR meteor radar

2000 ◽  
Vol 62 (13) ◽  
pp. 1129-1133 ◽  
Author(s):  
S.H. Marsh ◽  
R.G.T. Bennett ◽  
W.J. Baggaley ◽  
G.J. Fraser ◽  
G.E. Plank
Keyword(s):  
Meteor Radar

Meteor showers from known long-period comets

Icarus ◽  
2021 ◽  
pp. 114469
Author(s):  
Peter Jenniskens ◽  
Dante S. Lauretta ◽  
Martin C. Towner ◽  
Steve Heathcote ◽  
Emmanuel Jehin ◽  
...  
Keyword(s):  
Meteor Showers ◽  
Long Period

Diurnal and seasonal variability of short-period gravity waves at ∼40° N using meteor radar wind observations

2021 ◽  
Author(s):  
Caixia Tian ◽  
Xiong Hu ◽  
Alan Z. Liu ◽  
Zhaoai Yan ◽  
Qingchen Xu ◽  
...  
Keyword(s):  
Gravity Waves ◽  
Seasonal Variability ◽  
Meteor Radar ◽  
Short Period

scholarly journals The study of near Earth objects and meteor showers

2020 ◽  
Vol 1697 ◽  
pp. 012036
Author(s):  
M V Sergienko ◽  
M G Sokolova ◽  
A O Andreev ◽  
Y A Nefedyev
Keyword(s):  
Meteor Showers ◽  
Near Earth Objects

Meteor Showers

Nature ◽  
1911 ◽  
Vol 87 (2190) ◽  
pp. 516-516
Author(s):  
JOHN R. HENRY
Keyword(s):  
Meteor Showers

scholarly journals First studies of mesosphere and lower thermosphere dynamics using a multistatic specular meteor radar network over southern Patagonia

2020 ◽  
Author(s):  
Juan Federico Conte ◽  
Jorge L. Chau ◽  
Juan Miguel Urco ◽  
Ralph Latteck ◽  
Juha Vierinen ◽  
...  
Keyword(s):  
Lower Thermosphere ◽  
Meteor Radar ◽  
Radar Network ◽  
Southern Patagonia ◽  
Mesosphere And Lower Thermosphere

Monthly averages of diurnal temperature variation from meteor radar at Cachoeira Paulista (22.7°S, 45°W), Brazil

2021 ◽  
pp. 105689
Author(s):  
Lourivaldo Mota Lima ◽  
Ana Roberta Paulino ◽  
Luciana Rodrigues de Araújo ◽  
Fábio Batista Pereira Maia ◽  
Paulo Prado Batista
Keyword(s):  
Temperature Variation ◽  
Meteor Radar ◽  
Diurnal Temperature ◽  
Diurnal Temperature Variation
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