Equatorial Ionization Anomaly Discontinuity Observed by GOLD, COSMIC‐2, and Ground‐Based GPS Receivers' Network
Equatorial Ionization Anomaly Discontinuity Observed by GOLD, COSMIC‐2, and Ground‐Based GPS Receivers' Network
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DOI：
10.1029/2023gl102994
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发表时间：
2023-05
影响因子：
5.2
通讯作者：
X. Cai;Wenbin Wang;R. Eastes;L. Qian;N. Pedatella;Ercha Aa;Shunrong Zhang;A. Coster;R. Daniell;W. McClintock
中科院分区：
文献类型：
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作者：
X. Cai;Wenbin Wang;R. Eastes;L. Qian;N. Pedatella;Ercha Aa;Shunrong Zhang;A. Coster;R. Daniell;W. McClintock
我们报告了一种新的电离层现象：赤道电离异常（EIA）不连续性（EIAD），基于全球边缘和圆盘观测（GOLD）的OI 135.6 nm辐射观测，地面总电子含量图和来自气象，电离层和气候星座观测系统的原位离子密度数据。当EIA波峰的OI辐射在一个固定的UT处有一个局部极小值时，EIAD发生，局部经度区域的辐射比东西两侧的辐射弱。在GOLD视野中，EIAD遵循EIA的季节变化。EIAD在大西洋和非洲的出现频率高于南美洲。它发生在南部的波峰在十二月至日，更多的是在北方波峰在两个春分点。EIAD可以发生在安静和不安的时间。
We report a new ionosphere phenomenon: Equatorial ionization anomaly (EIA) discontinuity (EIAD), based on OI 135.6 nm radiance observations from the Global Observations of Limb and Disk (GOLD), ground‐based total electron content maps and in‐situ ion density data from Constellation Observing System for Meteorology, Ionosphere, and Climate‐2. The EIAD occurs when the OI radiance of the EIA crest has a local minimum, at a fixed UT, with the radiance in the local longitude region being weaker than that on the east and west sides. In the GOLD field‐of‐view, EIAD follows the seasonal variations of EIA. EIAD appears more often over the Atlantic Ocean and Africa than over South America. It occurs more in the southern crest during the December solstice, and more in the northern crest during both equinoxes. EIAD can occur under both quiet and disturbed times.