Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL090517 |
Unexpected high occurrence of daytime F region backscatter plume structures over low latitude Sanya and their possible origin | |
Haiyong Xie; Sipeng Yang; Xiukuan Zhao; Lianhuan Hu; Wenjie Sun; Zhi Wu; Baiqi Ning; Libo Liu; Guozhu Li | |
2020-10-30 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Ionospheric F‐region irregularity backscatter plumes are commonly regarded as a nighttime phenomenon at equatorial and low latitudes. Using the Sanya (18.4°N, 109.6°E, dip lat. 12.8°N) VHF radar, F‐region backscatter echoes were observed at daytime during 0700–1800 LT, with an unexpected high occurrence in June solstice of solar minimum. Radar interferometry and ICON satellite in‐situ results show that the daytime F‐region echoes were from plume structures consisting of field‐aligned irregularities. The daytime echoing structures appeared mostly above 350 km altitude, extending up to 650 km or more with apparent westward drifts at times. We surmise that the daytime F‐region echoes were due to equatorial plasma bubble irregularities generated on the previous night around 100 – 125°E, where the irregularities could survive unexpectedly long time, beyond sunrise as vertically elongated fossil plumes. Under the ionospheric background dynamics, the fossil plumes could be elevated to high altitudes and drift zonally over Sanya. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/301795 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Haiyong Xie,Sipeng Yang,Xiukuan Zhao,et al. Unexpected high occurrence of daytime F region backscatter plume structures over low latitude Sanya and their possible origin[J]. Geophysical Research Letters,2020. |
APA | Haiyong Xie.,Sipeng Yang.,Xiukuan Zhao.,Lianhuan Hu.,Wenjie Sun.,...&Guozhu Li.(2020).Unexpected high occurrence of daytime F region backscatter plume structures over low latitude Sanya and their possible origin.Geophysical Research Letters. |
MLA | Haiyong Xie,et al."Unexpected high occurrence of daytime F region backscatter plume structures over low latitude Sanya and their possible origin".Geophysical Research Letters (2020). |
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