Extremely Long‐Range Observations of Ionospheric Irregularities in a Large Longitude Zone From Pacific to Africa Using a Low Latitude Over‐The‐Horizon Radar in China
Abstract Monitoring the generation and movement of equatorial plasma bubbles (EPBs) in a large longitude region is crucial important for better understanding their day‐to‐day variability. Using the newly developed Low lAtitude long Range Ionospheric raDar (LARID) at Dongfang (19.2°N, 108.8°E, dip lat. 13.8°N), China, an extremely long‐range experiment for observing EPB irregularities in a range of ±9,600 km to the radar site was first carried out. The results show that EPB irregularities with ranges up to 7,000 and 9,500 km were observed by the east and west beams of LARID, respectively. By incorporating simultaneous observations from GNSS receiver and ionosonde networks, it is demonstrated that the EPBs generated from post‐sunset to sunrise over a very wide longitude of ∼140°, from Pacific to Africa could be observed by LARID. The results, for the first time, demonstrate the possibility for tracing global EPBs in real time using a few low latitude over‐the‐horizon radars.
Authors
- Wenjie Sun (ORCID: https://orcid.org/0000-0003-3129-5350)
- Bo Xiong (ORCID: https://orcid.org/0000-0003-4089-8946)
- Septi Perwitasari (ORCID: https://orcid.org/0000-0002-5108-0077)
- Guofeng Dai (ORCID: https://orcid.org/0009-0002-2222-9271)
- Xiukuan Zhao (ORCID: https://orcid.org/0000-0003-1342-7671)
- Guozhu Li (ORCID: https://orcid.org/0000-0002-7669-3590)
- Lianhuan Hu (ORCID: https://orcid.org/0000-0002-0104-3059)
- Haiyong Xie (ORCID: https://orcid.org/0000-0003-0054-211X)
- Baiqi Ning (ORCID: https://orcid.org/0000-0001-6259-0497)
- Michi Nishioka (ORCID: https://orcid.org/0000-0001-7147-5933)
- Yu Li (ORCID: https://orcid.org/0000-0001-6733-5057)
- Yi Li (ORCID: https://orcid.org/0009-0007-1197-2912)
Institutions
- North China Electric Power University (CN)
- Chinese Academy of Sciences (CN)
- Institute of Geology and Geophysics (CN)
- University of Chinese Academy of Sciences (CN)
- National Institute of Information and Communications Technology (JP)
- China Earthquake Administration (CN)
Publication Details
- Journal
- Geophysical Research Letters
- Published
- 2024-08-13
- DOI
- https://doi.org/10.1029/2024gl109579
- Citations
- 5
- Primary Topic
- Ionosphere and magnetosphere dynamics
- Type
- article
- Field-Weighted Citation Impact
- 1.66
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- National Institute of Information and Communications Technology