Observational evidence of high-altitude meteor trail from radar interferometer

Guozhu Li; Baiqi Ning; Weixing Wan; I. M. Reid; Lianhuan Hu; Xinan Yue; J. P. Younger; B. K. Dolman

doi:10.1002/2014GL061478

Observational evidence of high-altitude meteor trail from radar interferometer

Guozhu Li, Baiqi Ning, Weixing Wan, I. M. Reid, Lianhuan Hu, Xinan Yue, J. P. Younger, B. K. Dolman

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Whether radar meteor echoes occur at high altitudes (above ~130 km) in the Earth's atmosphere is a long-standing question within the meteor radar community. Using observations from the Sanya VHF coherent radar interferometer during 11 July to 10 August 2013, we have found a new class of range-spread high-altitude meteor trail echoes (HAMEs), some of which appeared at ~170 km altitude lasting more than 10 s. A statistical analysis on the local time dependence of the identified HAME events shows a maximum around 00-04 LT. The results imply that there could be much more meteor mass input due to meteoroid sputtering at high altitudes in the Earth's atmosphere than previously thought.

Original language	English
Pages (from-to)	6583-6589
Number of pages	7
Journal	Geophysical Research Letters
Volume	41
Issue number	19
DOIs	https://doi.org/10.1002/2014GL061478
Publication status	Published - 16 Oct 2014
Externally published	Yes

Keywords

high-altitude meteor
radar interferometer
range-spread trail echo

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title = "Observational evidence of high-altitude meteor trail from radar interferometer",

abstract = "Whether radar meteor echoes occur at high altitudes (above ~130 km) in the Earth's atmosphere is a long-standing question within the meteor radar community. Using observations from the Sanya VHF coherent radar interferometer during 11 July to 10 August 2013, we have found a new class of range-spread high-altitude meteor trail echoes (HAMEs), some of which appeared at ~170 km altitude lasting more than 10 s. A statistical analysis on the local time dependence of the identified HAME events shows a maximum around 00-04 LT. The results imply that there could be much more meteor mass input due to meteoroid sputtering at high altitudes in the Earth's atmosphere than previously thought.",

keywords = "high-altitude meteor, radar interferometer, range-spread trail echo",

author = "Guozhu Li and Baiqi Ning and Weixing Wan and Reid, {I. M.} and Lianhuan Hu and Xinan Yue and Younger, {J. P.} and Dolman, {B. K.}",

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T1 - Observational evidence of high-altitude meteor trail from radar interferometer

AU - Li, Guozhu

AU - Ning, Baiqi

AU - Wan, Weixing

AU - Reid, I. M.

AU - Hu, Lianhuan

AU - Yue, Xinan

AU - Younger, J. P.

AU - Dolman, B. K.

PY - 2014/10/16

Y1 - 2014/10/16

N2 - Whether radar meteor echoes occur at high altitudes (above ~130 km) in the Earth's atmosphere is a long-standing question within the meteor radar community. Using observations from the Sanya VHF coherent radar interferometer during 11 July to 10 August 2013, we have found a new class of range-spread high-altitude meteor trail echoes (HAMEs), some of which appeared at ~170 km altitude lasting more than 10 s. A statistical analysis on the local time dependence of the identified HAME events shows a maximum around 00-04 LT. The results imply that there could be much more meteor mass input due to meteoroid sputtering at high altitudes in the Earth's atmosphere than previously thought.

AB - Whether radar meteor echoes occur at high altitudes (above ~130 km) in the Earth's atmosphere is a long-standing question within the meteor radar community. Using observations from the Sanya VHF coherent radar interferometer during 11 July to 10 August 2013, we have found a new class of range-spread high-altitude meteor trail echoes (HAMEs), some of which appeared at ~170 km altitude lasting more than 10 s. A statistical analysis on the local time dependence of the identified HAME events shows a maximum around 00-04 LT. The results imply that there could be much more meteor mass input due to meteoroid sputtering at high altitudes in the Earth's atmosphere than previously thought.

KW - high-altitude meteor

KW - radar interferometer

KW - range-spread trail echo

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DO - 10.1002/2014GL061478

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JO - Geophysical Research Letters

JF - Geophysical Research Letters

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Observational evidence of high-altitude meteor trail from radar interferometer

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Keywords

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