CSES 卫星探测到的 ZEVS 发射器在顶层电离层的 ELF 发射

IF 2.8 3区地球科学 Q2 ASTRONOMY & ASTROPHYSICS

Advances in Space Research Pub Date : 2024-08-02 DOI:10.1016/j.asr.2024.07.074

Vyacheslav Pilipenko , Shufan Zhao , Natalia Savelieva , Nikolay Mazur , Evgeniy Fedorov , Zhenhui Ma

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引用次数: 0

摘要

低地轨道卫星 CSES（高度 500 公里）探测到了电离层上部对科拉半岛地面大规模发射机 ZEVS 的极低频（ELF）响应。当卫星位于白海上空 ZEVS 发射台附近（水平距离 400-900 千米）时，电传感器和磁传感器探测到振幅为 V/m 和 pT 的 82 赫兹窄带发射。我们模拟了电离层上部由 82 赫兹振荡线性电流激发的 ELF 波场空间结构，其长度为 60 千米，悬浮在高阻地面之上。利用 IRI 电离层模型重建了所研究事件期间等离子体参数的真实高度剖面。电离层上部电磁响应的模型振幅与 CSES 卫星记录的典型发射机电流强度 A 的 82 赫兹发射功率相当吻合。

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ELF emission in the topside ionosphere from the ZEVS transmitter detected by CSES satellite

The extremely-low-frequency (ELF) response in the upper ionosphere to ground large-scale transmitter ZEVS on the Kola Peninsula has been detected by low-Earth orbiting satellite CSES (

\sim

500 km altitude). When the satellite was in the vicinity of the ZEVS transmitter above the White Sea (horizontal distance

\sim

400–900 km), the electric and magnetic sensors detected a narrowband 82 Hz emission with amplitudes

E ≃ 1 - 3

μ

V/m and

B ≃ 0.5 - 1.0

pT. We modeled the ELF wave field spatial structure in the upper ionosphere excited by an oscillating 82 Hz linear current with the 60 km length suspended above a high-resistive ground. Realistic altitudinal profiles of the plasma parameters during events under study have been reconstructed with the use of the IRI ionospheric model. The modeled amplitudes of electromagnetic response of the upper ionosphere are in reasonable agreement with the 82-Hz emission power recorded by the CSES satellite for a typical transmitter current intensity

> 100

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来源期刊

Advances in Space Research 地学天文-地球科学综合

CiteScore

5.20

自引率

11.50%

发文量

800

审稿时长

5.8 months

期刊介绍： The COSPAR publication Advances in Space Research (ASR) is an open journal covering all areas of space research including: space studies of the Earth''s surface, meteorology, climate, the Earth-Moon system, planets and small bodies of the solar system, upper atmospheres, ionospheres and magnetospheres of the Earth and planets including reference atmospheres, space plasmas in the solar system, astrophysics from space, materials sciences in space, fundamental physics in space, space debris, space weather, Earth observations of space phenomena, etc. NB: Please note that manuscripts related to life sciences as related to space are no more accepted for submission to Advances in Space Research. Such manuscripts should now be submitted to the new COSPAR Journal Life Sciences in Space Research (LSSR). All submissions are reviewed by two scientists in the field. COSPAR is an interdisciplinary scientific organization concerned with the progress of space research on an international scale. Operating under the rules of ICSU, COSPAR ignores political considerations and considers all questions solely from the scientific viewpoint.