Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireball

Abstract A large bolide was reported at 23:23:33 UTC on December 22, 2020, at a height of ~ 35.5 km at $$31.9^\circ \mathrm{N}$$ 31 . 9 ∘ N , $$96.2^\circ \mathrm{E}$$ 96 . 2 ∘ E in Yushu, Qinghai Province, China. It is the largest fireball observed in China on record with a TNT equivalent of 9.5 ki...

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Main Authors: Wei Cheng, Pengxiao Teng, Jun Lyu, Yijing Dai
Format: Article
Language:English
Published: SpringerOpen 2021-07-01
Series:Geoscience Letters
Subjects:
Online Access:https://doi.org/10.1186/s40562-021-00196-6
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author Wei Cheng
Pengxiao Teng
Jun Lyu
Yijing Dai
author_facet Wei Cheng
Pengxiao Teng
Jun Lyu
Yijing Dai
author_sort Wei Cheng
collection DOAJ
description Abstract A large bolide was reported at 23:23:33 UTC on December 22, 2020, at a height of ~ 35.5 km at $$31.9^\circ \mathrm{N}$$ 31 . 9 ∘ N , $$96.2^\circ \mathrm{E}$$ 96 . 2 ∘ E in Yushu, Qinghai Province, China. It is the largest fireball observed in China on record with a TNT equivalent of 9.5 kilotons. Infrasound signals were detected by a four-element infrasound array deployed in Yunnan Province, China. The parameters of this event were obtained using the progressive multi-channel correlation method. The altitude of this event was estimated to be $$43.22\pm 15.51\mathrm{ km}$$ 43.22 ± 15.51 km using a ray tracing back-projection algorithm.
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spelling doaj.art-1a81b39cdad349c0b4ab56bccab6093f2022-12-21T22:11:20ZengSpringerOpenGeoscience Letters2196-40922021-07-01811610.1186/s40562-021-00196-6Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireballWei Cheng0Pengxiao Teng1Jun Lyu2Yijing Dai3Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of ScienceKey Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of ScienceKey Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of ScienceKey Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of ScienceAbstract A large bolide was reported at 23:23:33 UTC on December 22, 2020, at a height of ~ 35.5 km at $$31.9^\circ \mathrm{N}$$ 31 . 9 ∘ N , $$96.2^\circ \mathrm{E}$$ 96 . 2 ∘ E in Yushu, Qinghai Province, China. It is the largest fireball observed in China on record with a TNT equivalent of 9.5 kilotons. Infrasound signals were detected by a four-element infrasound array deployed in Yunnan Province, China. The parameters of this event were obtained using the progressive multi-channel correlation method. The altitude of this event was estimated to be $$43.22\pm 15.51\mathrm{ km}$$ 43.22 ± 15.51 km using a ray tracing back-projection algorithm.https://doi.org/10.1186/s40562-021-00196-6InfrasoundFireballAltitudeRay tracing back-projection algorithm
spellingShingle Wei Cheng
Pengxiao Teng
Jun Lyu
Yijing Dai
Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireball
Geoscience Letters
Infrasound
Fireball
Altitude
Ray tracing back-projection algorithm
title Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireball
title_full Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireball
title_fullStr Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireball
title_full_unstemmed Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireball
title_short Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireball
title_sort infrasound detection and altitude estimation associated with the december 22 2020 yushu fireball
topic Infrasound
Fireball
Altitude
Ray tracing back-projection algorithm
url https://doi.org/10.1186/s40562-021-00196-6
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