School of Electronic Science and Technology, Hainan University, Haikou 570228, China
Yang Liu
National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, China
Zheng-Wen Xu
National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, China
Jian Wu
Kunming Electro-Magnetic Environment National Observation and Research Station, China Research Institute of Radiowave Propagation, Qujing 655500, China
Kun Xue
National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, China
Huai-Yun Peng
National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, China
Zong-Hua Ding
Kunming Electro-Magnetic Environment National Observation and Research Station, China Research Institute of Radiowave Propagation, Qujing 655500, China
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10,517
1,177
434
12,128
503
458
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PDF: 1,177
XML: 434
Total: 12,128
BibTeX: 503
EndNote: 458
Views and downloads (calculated since 13 Aug 2025)
Cumulative views and downloads
(calculated since 13 Aug 2025)
Total article views: 1,138 (including HTML, PDF, and XML)
HTML
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Total
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636
300
202
1,138
297
215
HTML: 636
PDF: 300
XML: 202
Total: 1,138
BibTeX: 297
EndNote: 215
Views and downloads (calculated since 11 May 2026)
Cumulative views and downloads
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Total article views: 10,990 (including HTML, PDF, and XML)
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9,881
877
232
10,990
206
243
HTML: 9,881
PDF: 877
XML: 232
Total: 10,990
BibTeX: 206
EndNote: 243
Views and downloads (calculated since 13 Aug 2025)
Cumulative views and downloads
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Total article views: 12,128 (including HTML, PDF, and XML)
Thereof 11,996 with geography defined
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Total article views: 1,138 (including HTML, PDF, and XML)
Thereof 1,093 with geography defined
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Total article views: 10,990 (including HTML, PDF, and XML)
Thereof 10,903 with geography defined
and 87 with unknown origin.
This study extensively investigates the characteristics of Es layer intensity, spatial distribution, diurnal variation, seasonal patterns, and long-term trends over East Asia, employing over 60 years of observational data from 21 ionosonde stations across China and Japan. The study reveals that sporadic E layer intensity over East Asia significantly exceeds the global average, with its intensity core centered along the 30° N latitude line and attenuating toward both lower and higher latitudes.
This study extensively investigates the characteristics of Es layer intensity, spatial...