小升力运载火箭造成电离层耗损的数值模拟和GNSS观测

IF 3.8 2区 地球科学 Q2 ASTRONOMY & ASTROPHYSICS Space Weather-The International Journal of Research and Applications Pub Date : 2023-09-01 DOI:10.1029/2023sw003563
G. W. Bowden, M. Brown
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引用次数: 0

摘要

空间发射产生的电离层扰动可以通过测量如全球导航卫星系统信号延迟来观察。在这里,我们报告了由小升力运载火箭引起的电离层损耗的观测和数值模拟。审查的案例是2021年3月22日22:30 UTC发射的火箭实验室电子。尽管运载火箭非常小,查塔姆群岛的地面站测量到发射后导航卫星信号的倾斜总电子含量减少。全球电离层热层模式的结果表明电离层消耗与这些测量结果相当。测量结果表明,垂直总电子含量最大减少2.7 TECU,而模拟减少2.6 TECU。由于其初始速度和中性风的后续影响,排气羽流的平流被确定为这种形式的建模的一些剩余挑战。
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Numerical Modeling and GNSS Observations of Ionospheric Depletions Due To a Small‐Lift Launch Vehicle
Abstract Space launches produce ionospheric disturbances which can be observed through measurements such as Global Navigation Satellite System signal delays. Here we report observations and numerical simulations of the ionospheric depletion due to a Small‐Lift Launch Vehicle. The case examined was the launch of a Rocket Lab Electron at 22:30 UTC on 22 March 2021. Despite the very small launch vehicle, ground stations in the Chatham Islands measured decreases in slant total electron content for navigation satellite signals following the launch. Global Ionosphere Thermosphere Model results indicated ionospheric depletions which were comparable with these measurements. Measurements indicated a maximum decrease of 2.7 TECU in vertical total electron content, compared with a simulated decrease of 2.6 TECU. Advection of the exhaust plume due to its initial velocity and subsequent effects of neutral winds are identified as some remaining challenges for this form of modeling.
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来源期刊
CiteScore
5.90
自引率
29.70%
发文量
166
审稿时长
>12 weeks
期刊介绍: Space Weather: The International Journal of Research and Applications (SWE) is devoted to understanding and forecasting space weather. The scope of understanding and forecasting includes: origins, propagation and interactions of solar-produced processes within geospace; interactions in Earth’s space-atmosphere interface region produced by disturbances from above and below; influences of cosmic rays on humans, hardware, and signals; and comparisons of these types of interactions and influences with the atmospheres of neighboring planets and Earth’s moon. Manuscripts should emphasize impacts on technical systems including telecommunications, transportation, electric power, satellite navigation, avionics/spacecraft design and operations, human spaceflight, and other systems. Manuscripts that describe models or space environment climatology should clearly state how the results can be applied.
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