Preprints
https://doi.org/10.5194/amt-2022-254
https://doi.org/10.5194/amt-2022-254
07 Dec 2022
 | 07 Dec 2022
Status: this preprint was under review for the journal AMT but the revision was not accepted.

Multistatic meteor radar observations of two-dimensional horizontal MLT wind

Wen Yi, Jie Zeng, Xianghui Xue, Iain Reid, Wei Zhong, Jianfei Wu, Tingdi Chen, and Xiankang Dou

Abstract. All-sky meteor radars have become a reliable and widely used tool to observe horizontal winds in the mesosphere and lower thermosphere (MLT) region. The horizontal winds estimated by conventional single-station radars are obtained after averaging all meteor detections based on the assumption of the homogeneity of the horizontal wind in the meteor detection area (approximately 200–300 km radius). In this study, to improve the horizontal winds, we apply a multistatic meteor radar system consisting of a monostatic meteor radar in Mengcheng (33.36° N, 116.49° E) and a bistatic remote receiver in Changfeng (31.98° N, 117.22° E), separated by approximately 167 km to increase the number of meteors by at least 70 % and provide two different viewing angles of the meteor echoes. The accuracy of the horizontal wind measurement depends on the meteor number in time and altitude intervals. Compared to typical monostatic meteor radar, our approach shows the feasibility of estimating the two-dimensional horizontal wind field. The technique allows us to estimate the mean horizontal wind and the gradient terms of the horizontal wind, moreover, the horizontal divergence, relative vorticity, stretching and shearing deformation of the wind field. We are confident that the improved horizontal wind parameters will contribute to improving the understanding of the dynamics in the MLT region.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Wen Yi, Jie Zeng, Xianghui Xue, Iain Reid, Wei Zhong, Jianfei Wu, Tingdi Chen, and Xiankang Dou

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2022-254', Anonymous Referee #4, 12 Dec 2022
  • RC2: 'Comment on amt-2022-254', Anonymous Referee #2, 19 Dec 2022
  • RC3: 'Comment on amt-2022-254', Anonymous Referee #1, 25 Dec 2022
  • RC4: 'Comment on amt-2022-254', Anonymous Referee #3, 01 Jan 2023

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2022-254', Anonymous Referee #4, 12 Dec 2022
  • RC2: 'Comment on amt-2022-254', Anonymous Referee #2, 19 Dec 2022
  • RC3: 'Comment on amt-2022-254', Anonymous Referee #1, 25 Dec 2022
  • RC4: 'Comment on amt-2022-254', Anonymous Referee #3, 01 Jan 2023
Wen Yi, Jie Zeng, Xianghui Xue, Iain Reid, Wei Zhong, Jianfei Wu, Tingdi Chen, and Xiankang Dou
Wen Yi, Jie Zeng, Xianghui Xue, Iain Reid, Wei Zhong, Jianfei Wu, Tingdi Chen, and Xiankang Dou

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Latest update: 24 Jun 2024
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Short summary
In recent years, the concept of multistatic meteor radar systems has attracted the attention of the atmospheric radar community, focusing on the MLT region. In this study, we apply a multistatic meteor radar system consisting of a monostatic meteor radar in Mengcheng (33.36° N, 116.49° E) and a remote receiver in Changfeng (31.98° N, 117.22° E) to estimate the two-dimensional horizontal wind field, and the horizontal divergence and relative vorticity of the wind field.