论文标题

使用通用循环模型引起的火箭发射产生的电离层耗竭的数值模拟

Numerical simulation of ionospheric depletions resulting from rocket launches using a general circulation model

论文作者

Bowden, G. W., Lorrain, P., Brown, M.

论文摘要

已经观察到火箭排气羽流引起电离层等离子体的大规模耗竭(“电离层孔”)。在F区域中,电荷交换反应发生在O^+离子和排气物种之间,例如H $ _2 $ o,h $ _2 $和CO $ _2 $,以形成离子,然后进行快速解离重组。扩展了整体电离层 - 热球模型(GITM),包括这些化学反应和适当的源术语,以表示火箭排气羽。由Jason-3和FormoSat-5在Vandenberg空军基地上发射Jason-3和FormoSat-5在SpaceX Falcon 9火箭上发射的电离层耗竭。将模型的输出与GNSS,Ionosonde和卫星Langmuir探针测量进行了比较。模拟表明,与Jason-3发射相比,FormoSAT-5发射导致的电离层耗竭大得多,与观察结果一致。

Rocket exhaust plumes have been observed to cause large-scale depletions of ionospheric plasmas ("ionospheric holes"). In the F-region, charge exchange reactions occur between O^+ ions and exhaust species such as H$_2$O, H$_2$, and CO$_2$ to form ions which then undergo rapid dissociative recombination. The Global Ionosphere-Thermosphere Model (GITM) was extended to include these chemical reactions and appropriate source terms to represent rocket exhaust plumes. The resulting model was applied to ionospheric depletions resulting from the launches of Jason-3 and FORMOSAT-5 on SpaceX Falcon 9 rockets from Vandenberg Air Force Base. Outputs from the model were compared with GNSS, ionosonde, and satellite Langmuir probe measurements. Simulation indicated that the FORMOSAT-5 launch resulted in a far larger and longer-lived ionospheric depletion than the Jason-3 launch, consistent with observations.

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