Deployment and initial observations of the Wuhan University very low frequency (WHU VLF) wave detection system at the Great Wall Station in Antarctica
A system for the detection of very low frequency (VLF) electromagnetic waves has been developed by Wuhan University (WHU) with the Polar Research Institute of China (PRIC), and has been successfully deployed by PRIC at the Great Wall Station (GWS, 62.22°S, 58.96°W) in Antarctica, as part of the Phas...
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ftdoajarticles:oai:doaj.org/article:55839fb7c4b842e4a364873657e0e488 2023-09-26T15:10:17+02:00 Deployment and initial observations of the Wuhan University very low frequency (WHU VLF) wave detection system at the Great Wall Station in Antarctica Xudong Gu Binbin Ni Wei Xu Shiwei Wang Bin Li Ze-Jun Hu Fang He Xiangcai Chen Hong-Qiao Hu 2024-01-01T00:00:00Z https://doi.org/10.19975/j.dqyxx.2023-010 https://doaj.org/article/55839fb7c4b842e4a364873657e0e488 ZH chi Editorial Office of Reviews of Geophysics and Planetary Physics https://www.sjdz.org.cn/en/article/doi/10.19975/j.dqyxx.2023-010 https://doaj.org/toc/2097-1893 2097-1893 doi:10.19975/j.dqyxx.2023-010 https://doaj.org/article/55839fb7c4b842e4a364873657e0e488 地球与行星物理论评, Vol 55, Iss 1, Pp 15-23 (2024) whistler wave monitoring equipment antarctic great wall station space weather vlf wave propagation chinese meridian project Geophysics. Cosmic physics QC801-809 Astrophysics QB460-466 article 1481 ftdoajarticles https://doi.org/10.19975/j.dqyxx.2023-010 2023-08-27T00:39:01Z A system for the detection of very low frequency (VLF) electromagnetic waves has been developed by Wuhan University (WHU) with the Polar Research Institute of China (PRIC), and has been successfully deployed by PRIC at the Great Wall Station (GWS, 62.22°S, 58.96°W) in Antarctica, as part of the Phase II of Chinese Meridian Project. The system has a dynamic range of ~110 dB and a timing accuracy of ~100 ns, and hence can provide observational data at sufficient resolution to contribute to space physics and space weather research. This paper reports initial measurements of the WHU VLF (Meridian Project-Phase II ID:OCHCH_WHWM01) wave detection system at GWS, to demonstrate performance of the system. Data from nearly one year of routine operation indicate that the system is effective in recording the dynamic change of ground-based VLF transmitter signals from North America and Europe. The characteristics of VLF transmitter signals observed at GWS during X-class solar flares are consistent with results from previous studies. The VLF data exhibited a good correlation in space and time with measurements of magnetospheric electron deposition during geomagnetic storms, as detected in the south Atlantic anomaly (SAA) region. The WHU VLF system additionally provides data on the wide-band whistler waves as excited by lightning discharge, the spectrum of which exhibits a distinctive dispersion structure. The unique position of GWS in Antarctica provides the opportunity to obtain observational data on VLF waves which can be used to investigate multiple aspects of space physics, including the propagation of whistler waves in polar regions, lower ionosphere disturbance, lightning discharge, and radiation belt electron precipitation from the radiation belts. These measurements are of critical importance in monitoring near-Earth space weather. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Research Institute of China Directory of Open Access Journals: DOAJ Articles Antarctic Great Wall Station ENVELOPE(-58.970,-58.970,-62.217,-62.217) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Chinese |
topic |
whistler wave monitoring equipment antarctic great wall station space weather vlf wave propagation chinese meridian project Geophysics. Cosmic physics QC801-809 Astrophysics QB460-466 |
spellingShingle |
whistler wave monitoring equipment antarctic great wall station space weather vlf wave propagation chinese meridian project Geophysics. Cosmic physics QC801-809 Astrophysics QB460-466 Xudong Gu Binbin Ni Wei Xu Shiwei Wang Bin Li Ze-Jun Hu Fang He Xiangcai Chen Hong-Qiao Hu Deployment and initial observations of the Wuhan University very low frequency (WHU VLF) wave detection system at the Great Wall Station in Antarctica |
topic_facet |
whistler wave monitoring equipment antarctic great wall station space weather vlf wave propagation chinese meridian project Geophysics. Cosmic physics QC801-809 Astrophysics QB460-466 |
description |
A system for the detection of very low frequency (VLF) electromagnetic waves has been developed by Wuhan University (WHU) with the Polar Research Institute of China (PRIC), and has been successfully deployed by PRIC at the Great Wall Station (GWS, 62.22°S, 58.96°W) in Antarctica, as part of the Phase II of Chinese Meridian Project. The system has a dynamic range of ~110 dB and a timing accuracy of ~100 ns, and hence can provide observational data at sufficient resolution to contribute to space physics and space weather research. This paper reports initial measurements of the WHU VLF (Meridian Project-Phase II ID:OCHCH_WHWM01) wave detection system at GWS, to demonstrate performance of the system. Data from nearly one year of routine operation indicate that the system is effective in recording the dynamic change of ground-based VLF transmitter signals from North America and Europe. The characteristics of VLF transmitter signals observed at GWS during X-class solar flares are consistent with results from previous studies. The VLF data exhibited a good correlation in space and time with measurements of magnetospheric electron deposition during geomagnetic storms, as detected in the south Atlantic anomaly (SAA) region. The WHU VLF system additionally provides data on the wide-band whistler waves as excited by lightning discharge, the spectrum of which exhibits a distinctive dispersion structure. The unique position of GWS in Antarctica provides the opportunity to obtain observational data on VLF waves which can be used to investigate multiple aspects of space physics, including the propagation of whistler waves in polar regions, lower ionosphere disturbance, lightning discharge, and radiation belt electron precipitation from the radiation belts. These measurements are of critical importance in monitoring near-Earth space weather. |
format |
Article in Journal/Newspaper |
author |
Xudong Gu Binbin Ni Wei Xu Shiwei Wang Bin Li Ze-Jun Hu Fang He Xiangcai Chen Hong-Qiao Hu |
author_facet |
Xudong Gu Binbin Ni Wei Xu Shiwei Wang Bin Li Ze-Jun Hu Fang He Xiangcai Chen Hong-Qiao Hu |
author_sort |
Xudong Gu |
title |
Deployment and initial observations of the Wuhan University very low frequency (WHU VLF) wave detection system at the Great Wall Station in Antarctica |
title_short |
Deployment and initial observations of the Wuhan University very low frequency (WHU VLF) wave detection system at the Great Wall Station in Antarctica |
title_full |
Deployment and initial observations of the Wuhan University very low frequency (WHU VLF) wave detection system at the Great Wall Station in Antarctica |
title_fullStr |
Deployment and initial observations of the Wuhan University very low frequency (WHU VLF) wave detection system at the Great Wall Station in Antarctica |
title_full_unstemmed |
Deployment and initial observations of the Wuhan University very low frequency (WHU VLF) wave detection system at the Great Wall Station in Antarctica |
title_sort |
deployment and initial observations of the wuhan university very low frequency (whu vlf) wave detection system at the great wall station in antarctica |
publisher |
Editorial Office of Reviews of Geophysics and Planetary Physics |
publishDate |
1481 |
url |
https://doi.org/10.19975/j.dqyxx.2023-010 https://doaj.org/article/55839fb7c4b842e4a364873657e0e488 |
long_lat |
ENVELOPE(-58.970,-58.970,-62.217,-62.217) |
geographic |
Antarctic Great Wall Station |
geographic_facet |
Antarctic Great Wall Station |
genre |
Antarc* Antarctic Antarctica Polar Research Institute of China |
genre_facet |
Antarc* Antarctic Antarctica Polar Research Institute of China |
op_source |
地球与行星物理论评, Vol 55, Iss 1, Pp 15-23 (2024) |
op_relation |
https://www.sjdz.org.cn/en/article/doi/10.19975/j.dqyxx.2023-010 https://doaj.org/toc/2097-1893 2097-1893 doi:10.19975/j.dqyxx.2023-010 https://doaj.org/article/55839fb7c4b842e4a364873657e0e488 |
op_doi |
https://doi.org/10.19975/j.dqyxx.2023-010 |
_version_ |
1778142536976564224 |