Observational evidence of high-altitude meteor trail from radar interferometer

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.

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Copyright 2014 American Geophysical Union.
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Author Li, G.
Ning, B.
Wan, W.
Reid, I.
Hu, L.
Yue, Xinan
Younger, J.
Dolman, B.
Publisher UCAR/NCAR - Library
Publication Date 2014-10-16T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2025-07-12T00:05:10.014894
Metadata Record Identifier edu.ucar.opensky::articles:14489
Metadata Language eng; USA
Suggested Citation Li, G., Ning, B., Wan, W., Reid, I., Hu, L., Yue, Xinan, Younger, J., Dolman, B.. (2014). Observational evidence of high-altitude meteor trail from radar interferometer. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7xs5wc1. Accessed 08 August 2025.

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